3.0 source code

This commit is contained in:
agolybev
2015-04-28 17:59:00 +03:00
parent c69fd34bdd
commit 7b3b2248e5
16311 changed files with 1445974 additions and 3108429 deletions

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$(document).ready(function() {
module("Arrays");
test("first", function() {
equal(_.first([1,2,3]), 1, 'can pull out the first element of an array');
equal(_([1, 2, 3]).first(), 1, 'can perform OO-style "first()"');
equal(_.first([1,2,3], 0).join(', '), "", 'can pass an index to first');
equal(_.first([1,2,3], 2).join(', '), '1, 2', 'can pass an index to first');
equal(_.first([1,2,3], 5).join(', '), '1, 2, 3', 'can pass an index to first');
var result = (function(){ return _.first(arguments); })(4, 3, 2, 1);
equal(result, 4, 'works on an arguments object.');
result = _.map([[1,2,3],[1,2,3]], _.first);
equal(result.join(','), '1,1', 'works well with _.map');
result = (function() { return _.take([1,2,3], 2); })();
equal(result.join(','), '1,2', 'aliased as take');
equal(_.first(null), undefined, 'handles nulls');
});
test("rest", function() {
var numbers = [1, 2, 3, 4];
equal(_.rest(numbers).join(", "), "2, 3, 4", 'working rest()');
equal(_.rest(numbers, 0).join(", "), "1, 2, 3, 4", 'working rest(0)');
equal(_.rest(numbers, 2).join(', '), '3, 4', 'rest can take an index');
var result = (function(){ return _(arguments).tail(); })(1, 2, 3, 4);
equal(result.join(', '), '2, 3, 4', 'aliased as tail and works on arguments object');
result = _.map([[1,2,3],[1,2,3]], _.rest);
equal(_.flatten(result).join(','), '2,3,2,3', 'works well with _.map');
result = (function(){ return _(arguments).drop(); })(1, 2, 3, 4);
equal(result.join(', '), '2, 3, 4', 'aliased as drop and works on arguments object');
});
test("initial", function() {
equal(_.initial([1,2,3,4,5]).join(", "), "1, 2, 3, 4", 'working initial()');
equal(_.initial([1,2,3,4],2).join(", "), "1, 2", 'initial can take an index');
var result = (function(){ return _(arguments).initial(); })(1, 2, 3, 4);
equal(result.join(", "), "1, 2, 3", 'initial works on arguments object');
result = _.map([[1,2,3],[1,2,3]], _.initial);
equal(_.flatten(result).join(','), '1,2,1,2', 'initial works with _.map');
});
test("last", function() {
equal(_.last([1,2,3]), 3, 'can pull out the last element of an array');
equal(_.last([1,2,3], 0).join(', '), "", 'can pass an index to last');
equal(_.last([1,2,3], 2).join(', '), '2, 3', 'can pass an index to last');
equal(_.last([1,2,3], 5).join(', '), '1, 2, 3', 'can pass an index to last');
var result = (function(){ return _(arguments).last(); })(1, 2, 3, 4);
equal(result, 4, 'works on an arguments object');
result = _.map([[1,2,3],[1,2,3]], _.last);
equal(result.join(','), '3,3', 'works well with _.map');
equal(_.last(null), undefined, 'handles nulls');
});
test("compact", function() {
equal(_.compact([0, 1, false, 2, false, 3]).length, 3, 'can trim out all falsy values');
var result = (function(){ return _.compact(arguments).length; })(0, 1, false, 2, false, 3);
equal(result, 3, 'works on an arguments object');
});
test("flatten", function() {
var list = [1, [2], [3, [[[4]]]]];
deepEqual(_.flatten(list), [1,2,3,4], 'can flatten nested arrays');
deepEqual(_.flatten(list, true), [1,2,3,[[[4]]]], 'can shallowly flatten nested arrays');
var result = (function(){ return _.flatten(arguments); })(1, [2], [3, [[[4]]]]);
deepEqual(result, [1,2,3,4], 'works on an arguments object');
list = [[1], [2], [3], [[4]]];
deepEqual(_.flatten(list, true), [1, 2, 3, [4]], 'can shallowly flatten arrays containing only other arrays');
});
test("without", function() {
var list = [1, 2, 1, 0, 3, 1, 4];
equal(_.without(list, 0, 1).join(', '), '2, 3, 4', 'can remove all instances of an object');
var result = (function(){ return _.without(arguments, 0, 1); })(1, 2, 1, 0, 3, 1, 4);
equal(result.join(', '), '2, 3, 4', 'works on an arguments object');
list = [{one : 1}, {two : 2}];
ok(_.without(list, {one : 1}).length == 2, 'uses real object identity for comparisons.');
ok(_.without(list, list[0]).length == 1, 'ditto.');
});
test("uniq", function() {
var list = [1, 2, 1, 3, 1, 4];
equal(_.uniq(list).join(', '), '1, 2, 3, 4', 'can find the unique values of an unsorted array');
list = [1, 1, 1, 2, 2, 3];
equal(_.uniq(list, true).join(', '), '1, 2, 3', 'can find the unique values of a sorted array faster');
list = [{name:'moe'}, {name:'curly'}, {name:'larry'}, {name:'curly'}];
var iterator = function(value) { return value.name; };
equal(_.map(_.uniq(list, false, iterator), iterator).join(', '), 'moe, curly, larry', 'can find the unique values of an array using a custom iterator');
equal(_.map(_.uniq(list, iterator), iterator).join(', '), 'moe, curly, larry', 'can find the unique values of an array using a custom iterator without specifying whether array is sorted');
iterator = function(value) { return value +1; };
list = [1, 2, 2, 3, 4, 4];
equal(_.uniq(list, true, iterator).join(', '), '1, 2, 3, 4', 'iterator works with sorted array');
var result = (function(){ return _.uniq(arguments); })(1, 2, 1, 3, 1, 4);
equal(result.join(', '), '1, 2, 3, 4', 'works on an arguments object');
});
test("intersection", function() {
var stooges = ['moe', 'curly', 'larry'], leaders = ['moe', 'groucho'];
equal(_.intersection(stooges, leaders).join(''), 'moe', 'can take the set intersection of two arrays');
equal(_(stooges).intersection(leaders).join(''), 'moe', 'can perform an OO-style intersection');
var result = (function(){ return _.intersection(arguments, leaders); })('moe', 'curly', 'larry');
equal(result.join(''), 'moe', 'works on an arguments object');
var theSixStooges = ['moe', 'moe', 'curly', 'curly', 'larry', 'larry'];
equal(_.intersection(theSixStooges, leaders).join(''), 'moe', 'returns a duplicate-free array');
});
test("union", function() {
var result = _.union([1, 2, 3], [2, 30, 1], [1, 40]);
equal(result.join(' '), '1 2 3 30 40', 'takes the union of a list of arrays');
result = _.union([1, 2, 3], [2, 30, 1], [1, 40, [1]]);
equal(result.join(' '), '1 2 3 30 40 1', 'takes the union of a list of nested arrays');
var args = null;
(function(){ args = arguments; })(1, 2, 3);
result = _.union(args, [2, 30, 1], [1, 40]);
equal(result.join(' '), '1 2 3 30 40', 'takes the union of a list of arrays');
result = _.union(null, [1, 2, 3]);
deepEqual(result, [null, 1, 2, 3]);
});
test("difference", function() {
var result = _.difference([1, 2, 3], [2, 30, 40]);
equal(result.join(' '), '1 3', 'takes the difference of two arrays');
result = _.difference([1, 2, 3, 4], [2, 30, 40], [1, 11, 111]);
equal(result.join(' '), '3 4', 'takes the difference of three arrays');
});
test('zip', function() {
var names = ['moe', 'larry', 'curly'], ages = [30, 40, 50], leaders = [true];
var stooges = _.zip(names, ages, leaders);
equal(String(stooges), 'moe,30,true,larry,40,,curly,50,', 'zipped together arrays of different lengths');
stooges = _.zip(['moe',30, 'stooge 1'],['larry',40, 'stooge 2'],['curly',50, 'stooge 3']);
deepEqual(stooges, [['moe','larry','curly'],[30,40,50], ['stooge 1', 'stooge 2', 'stooge 3']], 'zipped pairs');
// In the case of difference lengths of the tuples undefineds
// should be used as placeholder
stooges = _.zip(['moe',30],['larry',40],['curly',50, 'extra data']);
deepEqual(stooges, [['moe','larry','curly'],[30,40,50], [undefined, undefined, 'extra data']], 'zipped pairs with empties');
var empty = _.zip([]);
deepEqual(empty, [], 'unzipped empty');
});
test('object', function() {
var result = _.object(['moe', 'larry', 'curly'], [30, 40, 50]);
var shouldBe = {moe: 30, larry: 40, curly: 50};
ok(_.isEqual(result, shouldBe), 'two arrays zipped together into an object');
result = _.object([['one', 1], ['two', 2], ['three', 3]]);
shouldBe = {one: 1, two: 2, three: 3};
ok(_.isEqual(result, shouldBe), 'an array of pairs zipped together into an object');
var stooges = {moe: 30, larry: 40, curly: 50};
ok(_.isEqual(_.object(_.pairs(stooges)), stooges), 'an object converted to pairs and back to an object');
ok(_.isEqual(_.object(null), {}), 'handles nulls');
});
test("indexOf", function() {
var numbers = [1, 2, 3];
numbers.indexOf = null;
equal(_.indexOf(numbers, 2), 1, 'can compute indexOf, even without the native function');
var result = (function(){ return _.indexOf(arguments, 2); })(1, 2, 3);
equal(result, 1, 'works on an arguments object');
equal(_.indexOf(null, 2), -1, 'handles nulls properly');
var num = 35;
numbers = [10, 20, 30, 40, 50];
var index = _.indexOf(numbers, num, true);
equal(index, -1, '35 is not in the list');
numbers = [10, 20, 30, 40, 50]; num = 40;
index = _.indexOf(numbers, num, true);
equal(index, 3, '40 is in the list');
numbers = [1, 40, 40, 40, 40, 40, 40, 40, 50, 60, 70]; num = 40;
index = _.indexOf(numbers, num, true);
equal(index, 1, '40 is in the list');
numbers = [1, 2, 3, 1, 2, 3, 1, 2, 3];
index = _.indexOf(numbers, 2, 5);
equal(index, 7, 'supports the fromIndex argument');
});
test("lastIndexOf", function() {
var numbers = [1, 0, 1];
equal(_.lastIndexOf(numbers, 1), 2);
numbers = [1, 0, 1, 0, 0, 1, 0, 0, 0];
numbers.lastIndexOf = null;
equal(_.lastIndexOf(numbers, 1), 5, 'can compute lastIndexOf, even without the native function');
equal(_.lastIndexOf(numbers, 0), 8, 'lastIndexOf the other element');
var result = (function(){ return _.lastIndexOf(arguments, 1); })(1, 0, 1, 0, 0, 1, 0, 0, 0);
equal(result, 5, 'works on an arguments object');
equal(_.lastIndexOf(null, 2), -1, 'handles nulls properly');
numbers = [1, 2, 3, 1, 2, 3, 1, 2, 3];
var index = _.lastIndexOf(numbers, 2, 2);
equal(index, 1, 'supports the fromIndex argument');
});
test("range", function() {
equal(_.range(0).join(''), '', 'range with 0 as a first argument generates an empty array');
equal(_.range(4).join(' '), '0 1 2 3', 'range with a single positive argument generates an array of elements 0,1,2,...,n-1');
equal(_.range(5, 8).join(' '), '5 6 7', 'range with two arguments a & b, a<b generates an array of elements a,a+1,a+2,...,b-2,b-1');
equal(_.range(8, 5).join(''), '', 'range with two arguments a & b, b<a generates an empty array');
equal(_.range(3, 10, 3).join(' '), '3 6 9', 'range with three arguments a & b & c, c < b-a, a < b generates an array of elements a,a+c,a+2c,...,b - (multiplier of a) < c');
equal(_.range(3, 10, 15).join(''), '3', 'range with three arguments a & b & c, c > b-a, a < b generates an array with a single element, equal to a');
equal(_.range(12, 7, -2).join(' '), '12 10 8', 'range with three arguments a & b & c, a > b, c < 0 generates an array of elements a,a-c,a-2c and ends with the number not less than b');
equal(_.range(0, -10, -1).join(' '), '0 -1 -2 -3 -4 -5 -6 -7 -8 -9', 'final example in the Python docs');
});
});

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$(document).ready(function() {
module("Chaining");
test("map/flatten/reduce", function() {
var lyrics = [
"I'm a lumberjack and I'm okay",
"I sleep all night and I work all day",
"He's a lumberjack and he's okay",
"He sleeps all night and he works all day"
];
var counts = _(lyrics).chain()
.map(function(line) { return line.split(''); })
.flatten()
.reduce(function(hash, l) {
hash[l] = hash[l] || 0;
hash[l]++;
return hash;
}, {}).value();
ok(counts.a == 16 && counts.e == 10, 'counted all the letters in the song');
});
test("select/reject/sortBy", function() {
var numbers = [1,2,3,4,5,6,7,8,9,10];
numbers = _(numbers).chain().select(function(n) {
return n % 2 === 0;
}).reject(function(n) {
return n % 4 === 0;
}).sortBy(function(n) {
return -n;
}).value();
equal(numbers.join(', '), "10, 6, 2", "filtered and reversed the numbers");
});
test("select/reject/sortBy in functional style", function() {
var numbers = [1,2,3,4,5,6,7,8,9,10];
numbers = _.chain(numbers).select(function(n) {
return n % 2 === 0;
}).reject(function(n) {
return n % 4 === 0;
}).sortBy(function(n) {
return -n;
}).value();
equal(numbers.join(', '), "10, 6, 2", "filtered and reversed the numbers");
});
test("reverse/concat/unshift/pop/map", function() {
var numbers = [1,2,3,4,5];
numbers = _(numbers).chain()
.reverse()
.concat([5, 5, 5])
.unshift(17)
.pop()
.map(function(n){ return n * 2; })
.value();
equal(numbers.join(', '), "34, 10, 8, 6, 4, 2, 10, 10", 'can chain together array functions.');
});
test("chaining works in small stages", function() {
var o = _([1, 2, 3, 4]).chain();
deepEqual(o.filter(function(i) { return i < 3; }).value(), [1, 2]);
deepEqual(o.filter(function(i) { return i > 2; }).value(), [3, 4]);
});
});

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$(document).ready(function() {
module("Collections");
test("each", function() {
_.each([1, 2, 3], function(num, i) {
equal(num, i + 1, 'each iterators provide value and iteration count');
});
var answers = [];
_.each([1, 2, 3], function(num){ answers.push(num * this.multiplier);}, {multiplier : 5});
equal(answers.join(', '), '5, 10, 15', 'context object property accessed');
answers = [];
_.forEach([1, 2, 3], function(num){ answers.push(num); });
equal(answers.join(', '), '1, 2, 3', 'aliased as "forEach"');
answers = [];
var obj = {one : 1, two : 2, three : 3};
obj.constructor.prototype.four = 4;
_.each(obj, function(value, key){ answers.push(key); });
equal(answers.join(", "), 'one, two, three', 'iterating over objects works, and ignores the object prototype.');
delete obj.constructor.prototype.four;
var answer = null;
_.each([1, 2, 3], function(num, index, arr){ if (_.include(arr, num)) answer = true; });
ok(answer, 'can reference the original collection from inside the iterator');
answers = 0;
_.each(null, function(){ ++answers; });
equal(answers, 0, 'handles a null properly');
});
test('map', function() {
var doubled = _.map([1, 2, 3], function(num){ return num * 2; });
equal(doubled.join(', '), '2, 4, 6', 'doubled numbers');
doubled = _.collect([1, 2, 3], function(num){ return num * 2; });
equal(doubled.join(', '), '2, 4, 6', 'aliased as "collect"');
var tripled = _.map([1, 2, 3], function(num){ return num * this.multiplier; }, {multiplier : 3});
equal(tripled.join(', '), '3, 6, 9', 'tripled numbers with context');
var doubled = _([1, 2, 3]).map(function(num){ return num * 2; });
equal(doubled.join(', '), '2, 4, 6', 'OO-style doubled numbers');
if (document.querySelectorAll) {
var ids = _.map(document.querySelectorAll('#map-test *'), function(n){ return n.id; });
deepEqual(ids, ['id1', 'id2'], 'Can use collection methods on NodeLists.');
}
var ids = _.map($('#map-test').children(), function(n){ return n.id; });
deepEqual(ids, ['id1', 'id2'], 'Can use collection methods on jQuery Array-likes.');
var ids = _.map(document.images, function(n){ return n.id; });
ok(ids[0] == 'chart_image', 'can use collection methods on HTMLCollections');
var ifnull = _.map(null, function(){});
ok(_.isArray(ifnull) && ifnull.length === 0, 'handles a null properly');
});
test('reduce', function() {
var sum = _.reduce([1, 2, 3], function(sum, num){ return sum + num; }, 0);
equal(sum, 6, 'can sum up an array');
var context = {multiplier : 3};
sum = _.reduce([1, 2, 3], function(sum, num){ return sum + num * this.multiplier; }, 0, context);
equal(sum, 18, 'can reduce with a context object');
sum = _.inject([1, 2, 3], function(sum, num){ return sum + num; }, 0);
equal(sum, 6, 'aliased as "inject"');
sum = _([1, 2, 3]).reduce(function(sum, num){ return sum + num; }, 0);
equal(sum, 6, 'OO-style reduce');
var sum = _.reduce([1, 2, 3], function(sum, num){ return sum + num; });
equal(sum, 6, 'default initial value');
var prod = _.reduce([1, 2, 3, 4], function(prod, num){ return prod * num; });
equal(prod, 24, 'can reduce via multiplication');
var ifnull;
try {
_.reduce(null, function(){});
} catch (ex) {
ifnull = ex;
}
ok(ifnull instanceof TypeError, 'handles a null (without initial value) properly');
ok(_.reduce(null, function(){}, 138) === 138, 'handles a null (with initial value) properly');
equal(_.reduce([], function(){}, undefined), undefined, 'undefined can be passed as a special case');
raises(function() { _.reduce([], function(){}); }, TypeError, 'throws an error for empty arrays with no initial value');
});
test('reduceRight', function() {
var list = _.reduceRight(["foo", "bar", "baz"], function(memo, str){ return memo + str; }, '');
equal(list, 'bazbarfoo', 'can perform right folds');
var list = _.foldr(["foo", "bar", "baz"], function(memo, str){ return memo + str; }, '');
equal(list, 'bazbarfoo', 'aliased as "foldr"');
var list = _.foldr(["foo", "bar", "baz"], function(memo, str){ return memo + str; });
equal(list, 'bazbarfoo', 'default initial value');
var ifnull;
try {
_.reduceRight(null, function(){});
} catch (ex) {
ifnull = ex;
}
ok(ifnull instanceof TypeError, 'handles a null (without initial value) properly');
var sum = _.reduceRight({a: 1, b: 2, c: 3}, function(sum, num){ return sum + num; });
equal(sum, 6, 'default initial value on object');
ok(_.reduceRight(null, function(){}, 138) === 138, 'handles a null (with initial value) properly');
equal(_.reduceRight([], function(){}, undefined), undefined, 'undefined can be passed as a special case');
raises(function() { _.reduceRight([], function(){}); }, TypeError, 'throws an error for empty arrays with no initial value');
// Assert that the correct arguments are being passed.
var args,
memo = {},
object = {a: 1, b: 2},
lastKey = _.keys(object).pop();
var expected = lastKey == 'a'
? [memo, 1, 'a', object]
: [memo, 2, 'b', object];
_.reduceRight(object, function() {
args || (args = _.toArray(arguments));
}, memo);
deepEqual(args, expected);
// And again, with numeric keys.
object = {'2': 'a', '1': 'b'};
lastKey = _.keys(object).pop();
args = null;
expected = lastKey == '2'
? [memo, 'a', '2', object]
: [memo, 'b', '1', object];
_.reduceRight(object, function() {
args || (args = _.toArray(arguments));
}, memo);
deepEqual(args, expected);
});
test('find', function() {
var array = [1, 2, 3, 4];
strictEqual(_.find(array, function(n) { return n > 2; }), 3, 'should return first found `value`');
strictEqual(_.find(array, function() { return false; }), void 0, 'should return `undefined` if `value` is not found');
});
test('detect', function() {
var result = _.detect([1, 2, 3], function(num){ return num * 2 == 4; });
equal(result, 2, 'found the first "2" and broke the loop');
});
test('select', function() {
var evens = _.select([1, 2, 3, 4, 5, 6], function(num){ return num % 2 == 0; });
equal(evens.join(', '), '2, 4, 6', 'selected each even number');
evens = _.filter([1, 2, 3, 4, 5, 6], function(num){ return num % 2 == 0; });
equal(evens.join(', '), '2, 4, 6', 'aliased as "filter"');
});
test('reject', function() {
var odds = _.reject([1, 2, 3, 4, 5, 6], function(num){ return num % 2 == 0; });
equal(odds.join(', '), '1, 3, 5', 'rejected each even number');
var context = "obj";
var evens = _.reject([1, 2, 3, 4, 5, 6], function(num){
equal(context, "obj");
return num % 2 != 0;
}, context);
equal(evens.join(', '), '2, 4, 6', 'rejected each odd number');
});
test('all', function() {
ok(_.all([], _.identity), 'the empty set');
ok(_.all([true, true, true], _.identity), 'all true values');
ok(!_.all([true, false, true], _.identity), 'one false value');
ok(_.all([0, 10, 28], function(num){ return num % 2 == 0; }), 'even numbers');
ok(!_.all([0, 11, 28], function(num){ return num % 2 == 0; }), 'an odd number');
ok(_.all([1], _.identity) === true, 'cast to boolean - true');
ok(_.all([0], _.identity) === false, 'cast to boolean - false');
ok(_.every([true, true, true], _.identity), 'aliased as "every"');
ok(!_.all([undefined, undefined, undefined], _.identity), 'works with arrays of undefined');
});
test('any', function() {
var nativeSome = Array.prototype.some;
Array.prototype.some = null;
ok(!_.any([]), 'the empty set');
ok(!_.any([false, false, false]), 'all false values');
ok(_.any([false, false, true]), 'one true value');
ok(_.any([null, 0, 'yes', false]), 'a string');
ok(!_.any([null, 0, '', false]), 'falsy values');
ok(!_.any([1, 11, 29], function(num){ return num % 2 == 0; }), 'all odd numbers');
ok(_.any([1, 10, 29], function(num){ return num % 2 == 0; }), 'an even number');
ok(_.any([1], _.identity) === true, 'cast to boolean - true');
ok(_.any([0], _.identity) === false, 'cast to boolean - false');
ok(_.some([false, false, true]), 'aliased as "some"');
Array.prototype.some = nativeSome;
});
test('include', function() {
ok(_.include([1,2,3], 2), 'two is in the array');
ok(!_.include([1,3,9], 2), 'two is not in the array');
ok(_.contains({moe:1, larry:3, curly:9}, 3) === true, '_.include on objects checks their values');
ok(_([1,2,3]).include(2), 'OO-style include');
});
test('invoke', function() {
var list = [[5, 1, 7], [3, 2, 1]];
var result = _.invoke(list, 'sort');
equal(result[0].join(', '), '1, 5, 7', 'first array sorted');
equal(result[1].join(', '), '1, 2, 3', 'second array sorted');
});
test('invoke w/ function reference', function() {
var list = [[5, 1, 7], [3, 2, 1]];
var result = _.invoke(list, Array.prototype.sort);
equal(result[0].join(', '), '1, 5, 7', 'first array sorted');
equal(result[1].join(', '), '1, 2, 3', 'second array sorted');
});
// Relevant when using ClojureScript
test('invoke when strings have a call method', function() {
String.prototype.call = function() {
return 42;
};
var list = [[5, 1, 7], [3, 2, 1]];
var s = "foo";
equal(s.call(), 42, "call function exists");
var result = _.invoke(list, 'sort');
equal(result[0].join(', '), '1, 5, 7', 'first array sorted');
equal(result[1].join(', '), '1, 2, 3', 'second array sorted');
delete String.prototype.call;
equal(s.call, undefined, "call function removed");
});
test('pluck', function() {
var people = [{name : 'moe', age : 30}, {name : 'curly', age : 50}];
equal(_.pluck(people, 'name').join(', '), 'moe, curly', 'pulls names out of objects');
});
test('where', function() {
var list = [{a: 1, b: 2}, {a: 2, b: 2}, {a: 1, b: 3}, {a: 1, b: 4}];
var result = _.where(list, {a: 1});
equal(result.length, 3);
equal(result[result.length - 1].b, 4);
result = _.where(list, {b: 2});
equal(result.length, 2);
equal(result[0].a, 1);
result = _.where(list, {a: 1}, true);
equal(result.b, 2, "Only get the first object matched.")
result = _.where(list, {a: 1}, false);
equal(result.length, 3);
});
test('findWhere', function() {
var list = [{a: 1, b: 2}, {a: 2, b: 2}, {a: 1, b: 3}, {a: 1, b: 4}, {a: 2, b: 4}];
var result = _.findWhere(list, {a: 1});
deepEqual(result, {a: 1, b: 2});
result = _.findWhere(list, {b: 4});
deepEqual(result, {a: 1, b: 4});
result = _.findWhere(list, {c:1})
ok(_.isUndefined(result), "undefined when not found");
result = _.findWhere([], {c:1});
ok(_.isUndefined(result), "undefined when searching empty list");
});
test('max', function() {
equal(3, _.max([1, 2, 3]), 'can perform a regular Math.max');
var neg = _.max([1, 2, 3], function(num){ return -num; });
equal(neg, 1, 'can perform a computation-based max');
equal(-Infinity, _.max({}), 'Maximum value of an empty object');
equal(-Infinity, _.max([]), 'Maximum value of an empty array');
equal(_.max({'a': 'a'}), -Infinity, 'Maximum value of a non-numeric collection');
equal(299999, _.max(_.range(1,300000)), "Maximum value of a too-big array");
});
test('min', function() {
equal(1, _.min([1, 2, 3]), 'can perform a regular Math.min');
var neg = _.min([1, 2, 3], function(num){ return -num; });
equal(neg, 3, 'can perform a computation-based min');
equal(Infinity, _.min({}), 'Minimum value of an empty object');
equal(Infinity, _.min([]), 'Minimum value of an empty array');
equal(_.min({'a': 'a'}), Infinity, 'Minimum value of a non-numeric collection');
var now = new Date(9999999999);
var then = new Date(0);
equal(_.min([now, then]), then);
equal(1, _.min(_.range(1,300000)), "Minimum value of a too-big array");
});
test('sortBy', function() {
var people = [{name : 'curly', age : 50}, {name : 'moe', age : 30}];
people = _.sortBy(people, function(person){ return person.age; });
equal(_.pluck(people, 'name').join(', '), 'moe, curly', 'stooges sorted by age');
var list = [undefined, 4, 1, undefined, 3, 2];
equal(_.sortBy(list, _.identity).join(','), '1,2,3,4,,', 'sortBy with undefined values');
var list = ["one", "two", "three", "four", "five"];
var sorted = _.sortBy(list, 'length');
equal(sorted.join(' '), 'one two four five three', 'sorted by length');
function Pair(x, y) {
this.x = x;
this.y = y;
}
var collection = [
new Pair(1, 1), new Pair(1, 2),
new Pair(1, 3), new Pair(1, 4),
new Pair(1, 5), new Pair(1, 6),
new Pair(2, 1), new Pair(2, 2),
new Pair(2, 3), new Pair(2, 4),
new Pair(2, 5), new Pair(2, 6),
new Pair(undefined, 1), new Pair(undefined, 2),
new Pair(undefined, 3), new Pair(undefined, 4),
new Pair(undefined, 5), new Pair(undefined, 6)
];
var actual = _.sortBy(collection, function(pair) {
return pair.x;
});
deepEqual(actual, collection, 'sortBy should be stable');
});
test('groupBy', function() {
var parity = _.groupBy([1, 2, 3, 4, 5, 6], function(num){ return num % 2; });
ok('0' in parity && '1' in parity, 'created a group for each value');
equal(parity[0].join(', '), '2, 4, 6', 'put each even number in the right group');
var list = ["one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"];
var grouped = _.groupBy(list, 'length');
equal(grouped['3'].join(' '), 'one two six ten');
equal(grouped['4'].join(' '), 'four five nine');
equal(grouped['5'].join(' '), 'three seven eight');
var context = {};
_.groupBy([{}], function(){ ok(this === context); }, context);
grouped = _.groupBy([4.2, 6.1, 6.4], function(num) {
return Math.floor(num) > 4 ? 'hasOwnProperty' : 'constructor';
});
equal(grouped.constructor.length, 1);
equal(grouped.hasOwnProperty.length, 2);
var array = [{}];
_.groupBy(array, function(value, index, obj){ ok(obj === array); });
var array = [1, 2, 1, 2, 3];
var grouped = _.groupBy(array);
equal(grouped['1'].length, 2);
equal(grouped['3'].length, 1);
var matrix = [
[1,2],
[1,3],
[2,3]
];
deepEqual(_.groupBy(matrix, 0), {1: [[1,2], [1,3]], 2: [[2,3]]})
deepEqual(_.groupBy(matrix, 1), {2: [[1,2]], 3: [[1,3], [2,3]]})
});
test('indexBy', function() {
var parity = _.indexBy([1, 2, 3, 4, 5], function(num){ return num % 2 == 0; });
equal(parity['true'], 4);
equal(parity['false'], 5);
var list = ["one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"];
var grouped = _.indexBy(list, 'length');
equal(grouped['3'], 'ten');
equal(grouped['4'], 'nine');
equal(grouped['5'], 'eight');
var array = [1, 2, 1, 2, 3];
var grouped = _.indexBy(array);
equal(grouped['1'], 1);
equal(grouped['2'], 2);
equal(grouped['3'], 3);
});
test('countBy', function() {
var parity = _.countBy([1, 2, 3, 4, 5], function(num){ return num % 2 == 0; });
equal(parity['true'], 2);
equal(parity['false'], 3);
var list = ["one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"];
var grouped = _.countBy(list, 'length');
equal(grouped['3'], 4);
equal(grouped['4'], 3);
equal(grouped['5'], 3);
var context = {};
_.countBy([{}], function(){ ok(this === context); }, context);
grouped = _.countBy([4.2, 6.1, 6.4], function(num) {
return Math.floor(num) > 4 ? 'hasOwnProperty' : 'constructor';
});
equal(grouped.constructor, 1);
equal(grouped.hasOwnProperty, 2);
var array = [{}];
_.countBy(array, function(value, index, obj){ ok(obj === array); });
var array = [1, 2, 1, 2, 3];
var grouped = _.countBy(array);
equal(grouped['1'], 2);
equal(grouped['3'], 1);
});
test('sortedIndex', function() {
var numbers = [10, 20, 30, 40, 50], num = 35;
var indexForNum = _.sortedIndex(numbers, num);
equal(indexForNum, 3, '35 should be inserted at index 3');
var indexFor30 = _.sortedIndex(numbers, 30);
equal(indexFor30, 2, '30 should be inserted at index 2');
var objects = [{x: 10}, {x: 20}, {x: 30}, {x: 40}];
var iterator = function(obj){ return obj.x; };
strictEqual(_.sortedIndex(objects, {x: 25}, iterator), 2);
strictEqual(_.sortedIndex(objects, {x: 35}, 'x'), 3);
var context = {1: 2, 2: 3, 3: 4};
iterator = function(obj){ return this[obj]; };
strictEqual(_.sortedIndex([1, 3], 2, iterator, context), 1);
});
test('shuffle', function() {
var numbers = _.range(10);
var shuffled = _.shuffle(numbers).sort();
notStrictEqual(numbers, shuffled, 'original object is unmodified');
equal(shuffled.join(','), numbers.join(','), 'contains the same members before and after shuffle');
});
test('sample', function() {
var numbers = _.range(10);
var all_sampled = _.sample(numbers, 10).sort();
equal(all_sampled.join(','), numbers.join(','), 'contains the same members before and after sample');
all_sampled = _.sample(numbers, 20).sort();
equal(all_sampled.join(','), numbers.join(','), 'also works when sampling more objects than are present');
ok(_.contains(numbers, _.sample(numbers)), 'sampling a single element returns something from the array');
strictEqual(_.sample([]), undefined, 'sampling empty array with no number returns undefined');
notStrictEqual(_.sample([], 5), [], 'sampling empty array with a number returns an empty array');
notStrictEqual(_.sample([1, 2, 3], 0), [], 'sampling an array with 0 picks returns an empty array');
deepEqual(_.sample([1, 2], -1), [], 'sampling a negative number of picks returns an empty array');
});
test('toArray', function() {
ok(!_.isArray(arguments), 'arguments object is not an array');
ok(_.isArray(_.toArray(arguments)), 'arguments object converted into array');
var a = [1,2,3];
ok(_.toArray(a) !== a, 'array is cloned');
equal(_.toArray(a).join(', '), '1, 2, 3', 'cloned array contains same elements');
var numbers = _.toArray({one : 1, two : 2, three : 3});
equal(numbers.join(', '), '1, 2, 3', 'object flattened into array');
// test in IE < 9
try {
var actual = _.toArray(document.childNodes);
} catch(ex) { }
ok(_.isArray(actual), 'should not throw converting a node list');
});
test('size', function() {
equal(_.size({one : 1, two : 2, three : 3}), 3, 'can compute the size of an object');
equal(_.size([1, 2, 3]), 3, 'can compute the size of an array');
equal(_.size($('<div>').add('<span>').add('<span>')), 3, 'can compute the size of jQuery objects');
var func = function() {
return _.size(arguments);
};
equal(func(1, 2, 3, 4), 4, 'can test the size of the arguments object');
equal(_.size('hello'), 5, 'can compute the size of a string literal');
equal(_.size(new String('hello')), 5, 'can compute the size of string object');
equal(_.size(null), 0, 'handles nulls');
});
});

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$(document).ready(function() {
module("Functions");
test("bind", function() {
var context = {name : 'moe'};
var func = function(arg) { return "name: " + (this.name || arg); };
var bound = _.bind(func, context);
equal(bound(), 'name: moe', 'can bind a function to a context');
bound = _(func).bind(context);
equal(bound(), 'name: moe', 'can do OO-style binding');
bound = _.bind(func, null, 'curly');
equal(bound(), 'name: curly', 'can bind without specifying a context');
func = function(salutation, name) { return salutation + ': ' + name; };
func = _.bind(func, this, 'hello');
equal(func('moe'), 'hello: moe', 'the function was partially applied in advance');
func = _.bind(func, this, 'curly');
equal(func(), 'hello: curly', 'the function was completely applied in advance');
func = function(salutation, firstname, lastname) { return salutation + ': ' + firstname + ' ' + lastname; };
func = _.bind(func, this, 'hello', 'moe', 'curly');
equal(func(), 'hello: moe curly', 'the function was partially applied in advance and can accept multiple arguments');
func = function(context, message) { equal(this, context, message); };
_.bind(func, 0, 0, 'can bind a function to `0`')();
_.bind(func, '', '', 'can bind a function to an empty string')();
_.bind(func, false, false, 'can bind a function to `false`')();
// These tests are only meaningful when using a browser without a native bind function
// To test this with a modern browser, set underscore's nativeBind to undefined
var F = function () { return this; };
var Boundf = _.bind(F, {hello: "moe curly"});
var newBoundf = new Boundf();
equal(newBoundf.hello, undefined, "function should not be bound to the context, to comply with ECMAScript 5");
equal(Boundf().hello, "moe curly", "When called without the new operator, it's OK to be bound to the context");
ok(newBoundf instanceof F, "a bound instance is an instance of the original function");
});
test("partial", function() {
var obj = {name: 'moe'};
var func = function() { return this.name + ' ' + _.toArray(arguments).join(' '); };
obj.func = _.partial(func, 'a', 'b');
equal(obj.func('c', 'd'), 'moe a b c d', 'can partially apply');
});
test("bindAll", function() {
var curly = {name : 'curly'}, moe = {
name : 'moe',
getName : function() { return 'name: ' + this.name; },
sayHi : function() { return 'hi: ' + this.name; }
};
curly.getName = moe.getName;
_.bindAll(moe, 'getName', 'sayHi');
curly.sayHi = moe.sayHi;
equal(curly.getName(), 'name: curly', 'unbound function is bound to current object');
equal(curly.sayHi(), 'hi: moe', 'bound function is still bound to original object');
curly = {name : 'curly'};
moe = {
name : 'moe',
getName : function() { return 'name: ' + this.name; },
sayHi : function() { return 'hi: ' + this.name; }
};
raises(function() { _.bindAll(moe); }, Error, 'throws an error for bindAll with no functions named');
_.bindAll(moe, 'sayHi');
curly.sayHi = moe.sayHi;
equal(curly.sayHi(), 'hi: moe');
});
test("memoize", function() {
var fib = function(n) {
return n < 2 ? n : fib(n - 1) + fib(n - 2);
};
equal(fib(10), 55, 'a memoized version of fibonacci produces identical results');
fib = _.memoize(fib); // Redefine `fib` for memoization
equal(fib(10), 55, 'a memoized version of fibonacci produces identical results');
var o = function(str) {
return str;
};
var fastO = _.memoize(o);
equal(o('toString'), 'toString', 'checks hasOwnProperty');
equal(fastO('toString'), 'toString', 'checks hasOwnProperty');
});
asyncTest("delay", 2, function() {
var delayed = false;
_.delay(function(){ delayed = true; }, 100);
setTimeout(function(){ ok(!delayed, "didn't delay the function quite yet"); }, 50);
setTimeout(function(){ ok(delayed, 'delayed the function'); start(); }, 150);
});
asyncTest("defer", 1, function() {
var deferred = false;
_.defer(function(bool){ deferred = bool; }, true);
_.delay(function(){ ok(deferred, "deferred the function"); start(); }, 50);
});
asyncTest("throttle", 2, function() {
var counter = 0;
var incr = function(){ counter++; };
var throttledIncr = _.throttle(incr, 32);
throttledIncr(); throttledIncr();
equal(counter, 1, "incr was called immediately");
_.delay(function(){ equal(counter, 2, "incr was throttled"); start(); }, 64);
});
asyncTest("throttle arguments", 2, function() {
var value = 0;
var update = function(val){ value = val; };
var throttledUpdate = _.throttle(update, 32);
throttledUpdate(1); throttledUpdate(2);
_.delay(function(){ throttledUpdate(3); }, 64);
equal(value, 1, "updated to latest value");
_.delay(function(){ equal(value, 3, "updated to latest value"); start(); }, 96);
});
asyncTest("throttle once", 2, function() {
var counter = 0;
var incr = function(){ return ++counter; };
var throttledIncr = _.throttle(incr, 32);
var result = throttledIncr();
_.delay(function(){
equal(result, 1, "throttled functions return their value");
equal(counter, 1, "incr was called once"); start();
}, 64);
});
asyncTest("throttle twice", 1, function() {
var counter = 0;
var incr = function(){ counter++; };
var throttledIncr = _.throttle(incr, 32);
throttledIncr(); throttledIncr();
_.delay(function(){ equal(counter, 2, "incr was called twice"); start(); }, 64);
});
asyncTest("more throttling", 3, function() {
var counter = 0;
var incr = function(){ counter++; };
var throttledIncr = _.throttle(incr, 30);
throttledIncr(); throttledIncr();
ok(counter == 1);
_.delay(function(){
ok(counter == 2);
throttledIncr();
ok(counter == 3);
start();
}, 85);
});
asyncTest("throttle repeatedly with results", 6, function() {
var counter = 0;
var incr = function(){ return ++counter; };
var throttledIncr = _.throttle(incr, 100);
var results = [];
var saveResult = function() { results.push(throttledIncr()); };
saveResult(); saveResult();
_.delay(saveResult, 50);
_.delay(saveResult, 150);
_.delay(saveResult, 160);
_.delay(saveResult, 230);
_.delay(function() {
equal(results[0], 1, "incr was called once");
equal(results[1], 1, "incr was throttled");
equal(results[2], 1, "incr was throttled");
equal(results[3], 2, "incr was called twice");
equal(results[4], 2, "incr was throttled");
equal(results[5], 3, "incr was called trailing");
start();
}, 300);
});
asyncTest("throttle triggers trailing call when invoked repeatedly", 2, function() {
var counter = 0;
var limit = 48;
var incr = function(){ counter++; };
var throttledIncr = _.throttle(incr, 32);
var stamp = new Date;
while ((new Date - stamp) < limit) {
throttledIncr();
}
var lastCount = counter;
ok(counter > 1);
_.delay(function() {
ok(counter > lastCount);
start();
}, 96);
});
asyncTest("throttle does not trigger leading call when leading is set to false", 2, function() {
var counter = 0;
var incr = function(){ counter++; };
var throttledIncr = _.throttle(incr, 60, {leading: false});
throttledIncr(); throttledIncr();
ok(counter === 0);
_.delay(function() {
ok(counter == 1);
start();
}, 96);
});
asyncTest("more throttle does not trigger leading call when leading is set to false", 3, function() {
var counter = 0;
var incr = function(){ counter++; };
var throttledIncr = _.throttle(incr, 100, {leading: false});
throttledIncr();
_.delay(throttledIncr, 50);
_.delay(throttledIncr, 60);
_.delay(throttledIncr, 200);
ok(counter === 0);
_.delay(function() {
ok(counter == 1);
}, 250);
_.delay(function() {
ok(counter == 2);
start();
}, 350);
});
asyncTest("one more throttle with leading: false test", 2, function() {
var counter = 0;
var incr = function(){ counter++; };
var throttledIncr = _.throttle(incr, 100, {leading: false});
var time = new Date;
while (new Date - time < 350) throttledIncr();
ok(counter <= 3);
_.delay(function() {
ok(counter <= 4);
start();
}, 200);
});
asyncTest("throttle does not trigger trailing call when trailing is set to false", 4, function() {
var counter = 0;
var incr = function(){ counter++; };
var throttledIncr = _.throttle(incr, 60, {trailing: false});
throttledIncr(); throttledIncr(); throttledIncr();
ok(counter === 1);
_.delay(function() {
ok(counter == 1);
throttledIncr(); throttledIncr();
ok(counter == 2);
_.delay(function() {
ok(counter == 2);
start();
}, 96);
}, 96);
});
asyncTest("debounce", 1, function() {
var counter = 0;
var incr = function(){ counter++; };
var debouncedIncr = _.debounce(incr, 32);
debouncedIncr(); debouncedIncr();
_.delay(debouncedIncr, 16);
_.delay(function(){ equal(counter, 1, "incr was debounced"); start(); }, 96);
});
asyncTest("debounce asap", 4, function() {
var a, b;
var counter = 0;
var incr = function(){ return ++counter; };
var debouncedIncr = _.debounce(incr, 64, true);
a = debouncedIncr();
b = debouncedIncr();
equal(a, 1);
equal(b, 1);
equal(counter, 1, 'incr was called immediately');
_.delay(debouncedIncr, 16);
_.delay(debouncedIncr, 32);
_.delay(debouncedIncr, 48);
_.delay(function(){ equal(counter, 1, "incr was debounced"); start(); }, 128);
});
asyncTest("debounce asap recursively", 2, function() {
var counter = 0;
var debouncedIncr = _.debounce(function(){
counter++;
if (counter < 10) debouncedIncr();
}, 32, true);
debouncedIncr();
equal(counter, 1, "incr was called immediately");
_.delay(function(){ equal(counter, 1, "incr was debounced"); start(); }, 96);
});
test("once", function() {
var num = 0;
var increment = _.once(function(){ num++; });
increment();
increment();
equal(num, 1);
});
test("Recursive onced function.", 1, function() {
var f = _.once(function(){
ok(true);
f();
});
f();
});
test("wrap", function() {
var greet = function(name){ return "hi: " + name; };
var backwards = _.wrap(greet, function(func, name){ return func(name) + ' ' + name.split('').reverse().join(''); });
equal(backwards('moe'), 'hi: moe eom', 'wrapped the salutation function');
var inner = function(){ return "Hello "; };
var obj = {name : "Moe"};
obj.hi = _.wrap(inner, function(fn){ return fn() + this.name; });
equal(obj.hi(), "Hello Moe");
var noop = function(){};
var wrapped = _.wrap(noop, function(fn){ return Array.prototype.slice.call(arguments, 0); });
var ret = wrapped(['whats', 'your'], 'vector', 'victor');
deepEqual(ret, [noop, ['whats', 'your'], 'vector', 'victor']);
});
test("compose", function() {
var greet = function(name){ return "hi: " + name; };
var exclaim = function(sentence){ return sentence + '!'; };
var composed = _.compose(exclaim, greet);
equal(composed('moe'), 'hi: moe!', 'can compose a function that takes another');
composed = _.compose(greet, exclaim);
equal(composed('moe'), 'hi: moe!', 'in this case, the functions are also commutative');
});
test("after", function() {
var testAfter = function(afterAmount, timesCalled) {
var afterCalled = 0;
var after = _.after(afterAmount, function() {
afterCalled++;
});
while (timesCalled--) after();
return afterCalled;
};
equal(testAfter(5, 5), 1, "after(N) should fire after being called N times");
equal(testAfter(5, 4), 0, "after(N) should not fire unless called N times");
equal(testAfter(0, 0), 0, "after(0) should not fire immediately");
equal(testAfter(0, 1), 1, "after(0) should fire when first invoked");
});
});

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<!DOCTYPE html>
<html>
<head>
<title>Underscore Test Suite</title>
<link rel="stylesheet" href="vendor/qunit.css" type="text/css" media="screen">
<script src="vendor/jquery.js"></script>
<script src="vendor/qunit.js"></script>
<script src="vendor/jslitmus.js"></script>
<script src="../underscore.js"></script>
<script src="collections.js"></script>
<script src="arrays.js"></script>
<script src="functions.js"></script>
<script src="objects.js"></script>
<script src="utility.js"></script>
<script src="chaining.js"></script>
<script src="speed.js"></script>
</head>
<body>
<div id="qunit"></div>
<div id="qunit-fixture">
<div id="map-test">
<div id="id1"></div>
<div id="id2"></div>
</div>
</div>
<br>
<h1 class="qunit-header">Underscore Speed Suite</h1>
<p>
A representative sample of the functions are benchmarked here, to provide
a sense of how fast they might run in different browsers.
Each iteration runs on an array of 1000 elements.<br /><br />
For example, the 'intersection' test measures the number of times you can
find the intersection of two thousand-element arrays in one second.
</p>
<br>
<script type="text/html" id="template">
<%
// a comment
if (data) { data += 12345; }; %>
<li><%= data %></li>
</script>
</body>
</html>

View File

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$(document).ready(function() {
module("Objects");
test("keys", function() {
equal(_.keys({one : 1, two : 2}).join(', '), 'one, two', 'can extract the keys from an object');
// the test above is not safe because it relies on for-in enumeration order
var a = []; a[1] = 0;
equal(_.keys(a).join(', '), '1', 'is not fooled by sparse arrays; see issue #95');
raises(function() { _.keys(null); }, TypeError, 'throws an error for `null` values');
raises(function() { _.keys(void 0); }, TypeError, 'throws an error for `undefined` values');
raises(function() { _.keys(1); }, TypeError, 'throws an error for number primitives');
raises(function() { _.keys('a'); }, TypeError, 'throws an error for string primitives');
raises(function() { _.keys(true); }, TypeError, 'throws an error for boolean primitives');
});
test("values", function() {
equal(_.values({one: 1, two: 2}).join(', '), '1, 2', 'can extract the values from an object');
equal(_.values({one: 1, two: 2, length: 3}).join(', '), '1, 2, 3', '... even when one of them is "length"');
});
test("pairs", function() {
deepEqual(_.pairs({one: 1, two: 2}), [['one', 1], ['two', 2]], 'can convert an object into pairs');
deepEqual(_.pairs({one: 1, two: 2, length: 3}), [['one', 1], ['two', 2], ['length', 3]], '... even when one of them is "length"');
});
test("invert", function() {
var obj = {first: 'Moe', second: 'Larry', third: 'Curly'};
equal(_.keys(_.invert(obj)).join(' '), 'Moe Larry Curly', 'can invert an object');
ok(_.isEqual(_.invert(_.invert(obj)), obj), 'two inverts gets you back where you started');
var obj = {length: 3};
ok(_.invert(obj)['3'] == 'length', 'can invert an object with "length"')
});
test("functions", function() {
var obj = {a : 'dash', b : _.map, c : (/yo/), d : _.reduce};
ok(_.isEqual(['b', 'd'], _.functions(obj)), 'can grab the function names of any passed-in object');
var Animal = function(){};
Animal.prototype.run = function(){};
equal(_.functions(new Animal).join(''), 'run', 'also looks up functions on the prototype');
});
test("extend", function() {
var result;
equal(_.extend({}, {a:'b'}).a, 'b', 'can extend an object with the attributes of another');
equal(_.extend({a:'x'}, {a:'b'}).a, 'b', 'properties in source override destination');
equal(_.extend({x:'x'}, {a:'b'}).x, 'x', "properties not in source don't get overriden");
result = _.extend({x:'x'}, {a:'a'}, {b:'b'});
ok(_.isEqual(result, {x:'x', a:'a', b:'b'}), 'can extend from multiple source objects');
result = _.extend({x:'x'}, {a:'a', x:2}, {a:'b'});
ok(_.isEqual(result, {x:2, a:'b'}), 'extending from multiple source objects last property trumps');
result = _.extend({}, {a: void 0, b: null});
equal(_.keys(result).join(''), 'ab', 'extend copies undefined values');
try {
result = {};
_.extend(result, null, undefined, {a:1});
} catch(ex) {}
equal(result.a, 1, 'should not error on `null` or `undefined` sources');
});
test("pick", function() {
var result;
result = _.pick({a:1, b:2, c:3}, 'a', 'c');
ok(_.isEqual(result, {a:1, c:3}), 'can restrict properties to those named');
result = _.pick({a:1, b:2, c:3}, ['b', 'c']);
ok(_.isEqual(result, {b:2, c:3}), 'can restrict properties to those named in an array');
result = _.pick({a:1, b:2, c:3}, ['a'], 'b');
ok(_.isEqual(result, {a:1, b:2}), 'can restrict properties to those named in mixed args');
var Obj = function(){};
Obj.prototype = {a: 1, b: 2, c: 3};
ok(_.isEqual(_.pick(new Obj, 'a', 'c'), {a:1, c: 3}), 'include prototype props');
});
test("omit", function() {
var result;
result = _.omit({a:1, b:2, c:3}, 'b');
ok(_.isEqual(result, {a:1, c:3}), 'can omit a single named property');
result = _.omit({a:1, b:2, c:3}, 'a', 'c');
ok(_.isEqual(result, {b:2}), 'can omit several named properties');
result = _.omit({a:1, b:2, c:3}, ['b', 'c']);
ok(_.isEqual(result, {a:1}), 'can omit properties named in an array');
var Obj = function(){};
Obj.prototype = {a: 1, b: 2, c: 3};
ok(_.isEqual(_.omit(new Obj, 'b'), {a:1, c: 3}), 'include prototype props');
});
test("defaults", function() {
var result;
var options = {zero: 0, one: 1, empty: "", nan: NaN, nothing: null};
_.defaults(options, {zero: 1, one: 10, twenty: 20, nothing: 'str'});
equal(options.zero, 0, 'value exists');
equal(options.one, 1, 'value exists');
equal(options.twenty, 20, 'default applied');
equal(options.nothing, null, "null isn't overridden");
_.defaults(options, {empty: "full"}, {nan: "nan"}, {word: "word"}, {word: "dog"});
equal(options.empty, "", 'value exists');
ok(_.isNaN(options.nan), "NaN isn't overridden");
equal(options.word, "word", 'new value is added, first one wins');
try {
options = {};
_.defaults(options, null, undefined, {a:1});
} catch(ex) {}
equal(options.a, 1, 'should not error on `null` or `undefined` sources');
});
test("clone", function() {
var moe = {name : 'moe', lucky : [13, 27, 34]};
var clone = _.clone(moe);
equal(clone.name, 'moe', 'the clone as the attributes of the original');
clone.name = 'curly';
ok(clone.name == 'curly' && moe.name == 'moe', 'clones can change shallow attributes without affecting the original');
clone.lucky.push(101);
equal(_.last(moe.lucky), 101, 'changes to deep attributes are shared with the original');
equal(_.clone(undefined), void 0, 'non objects should not be changed by clone');
equal(_.clone(1), 1, 'non objects should not be changed by clone');
equal(_.clone(null), null, 'non objects should not be changed by clone');
});
test("isEqual", function() {
function First() {
this.value = 1;
}
First.prototype.value = 1;
function Second() {
this.value = 1;
}
Second.prototype.value = 2;
// Basic equality and identity comparisons.
ok(_.isEqual(null, null), "`null` is equal to `null`");
ok(_.isEqual(), "`undefined` is equal to `undefined`");
ok(!_.isEqual(0, -0), "`0` is not equal to `-0`");
ok(!_.isEqual(-0, 0), "Commutative equality is implemented for `0` and `-0`");
ok(!_.isEqual(null, undefined), "`null` is not equal to `undefined`");
ok(!_.isEqual(undefined, null), "Commutative equality is implemented for `null` and `undefined`");
// String object and primitive comparisons.
ok(_.isEqual("Curly", "Curly"), "Identical string primitives are equal");
ok(_.isEqual(new String("Curly"), new String("Curly")), "String objects with identical primitive values are equal");
ok(_.isEqual(new String("Curly"), "Curly"), "String primitives and their corresponding object wrappers are equal");
ok(_.isEqual("Curly", new String("Curly")), "Commutative equality is implemented for string objects and primitives");
ok(!_.isEqual("Curly", "Larry"), "String primitives with different values are not equal");
ok(!_.isEqual(new String("Curly"), new String("Larry")), "String objects with different primitive values are not equal");
ok(!_.isEqual(new String("Curly"), {toString: function(){ return "Curly"; }}), "String objects and objects with a custom `toString` method are not equal");
// Number object and primitive comparisons.
ok(_.isEqual(75, 75), "Identical number primitives are equal");
ok(_.isEqual(new Number(75), new Number(75)), "Number objects with identical primitive values are equal");
ok(_.isEqual(75, new Number(75)), "Number primitives and their corresponding object wrappers are equal");
ok(_.isEqual(new Number(75), 75), "Commutative equality is implemented for number objects and primitives");
ok(!_.isEqual(new Number(0), -0), "`new Number(0)` and `-0` are not equal");
ok(!_.isEqual(0, new Number(-0)), "Commutative equality is implemented for `new Number(0)` and `-0`");
ok(!_.isEqual(new Number(75), new Number(63)), "Number objects with different primitive values are not equal");
ok(!_.isEqual(new Number(63), {valueOf: function(){ return 63; }}), "Number objects and objects with a `valueOf` method are not equal");
// Comparisons involving `NaN`.
ok(_.isEqual(NaN, NaN), "`NaN` is equal to `NaN`");
ok(!_.isEqual(61, NaN), "A number primitive is not equal to `NaN`");
ok(!_.isEqual(new Number(79), NaN), "A number object is not equal to `NaN`");
ok(!_.isEqual(Infinity, NaN), "`Infinity` is not equal to `NaN`");
// Boolean object and primitive comparisons.
ok(_.isEqual(true, true), "Identical boolean primitives are equal");
ok(_.isEqual(new Boolean, new Boolean), "Boolean objects with identical primitive values are equal");
ok(_.isEqual(true, new Boolean(true)), "Boolean primitives and their corresponding object wrappers are equal");
ok(_.isEqual(new Boolean(true), true), "Commutative equality is implemented for booleans");
ok(!_.isEqual(new Boolean(true), new Boolean), "Boolean objects with different primitive values are not equal");
// Common type coercions.
ok(!_.isEqual(true, new Boolean(false)), "Boolean objects are not equal to the boolean primitive `true`");
ok(!_.isEqual("75", 75), "String and number primitives with like values are not equal");
ok(!_.isEqual(new Number(63), new String(63)), "String and number objects with like values are not equal");
ok(!_.isEqual(75, "75"), "Commutative equality is implemented for like string and number values");
ok(!_.isEqual(0, ""), "Number and string primitives with like values are not equal");
ok(!_.isEqual(1, true), "Number and boolean primitives with like values are not equal");
ok(!_.isEqual(new Boolean(false), new Number(0)), "Boolean and number objects with like values are not equal");
ok(!_.isEqual(false, new String("")), "Boolean primitives and string objects with like values are not equal");
ok(!_.isEqual(12564504e5, new Date(2009, 9, 25)), "Dates and their corresponding numeric primitive values are not equal");
// Dates.
ok(_.isEqual(new Date(2009, 9, 25), new Date(2009, 9, 25)), "Date objects referencing identical times are equal");
ok(!_.isEqual(new Date(2009, 9, 25), new Date(2009, 11, 13)), "Date objects referencing different times are not equal");
ok(!_.isEqual(new Date(2009, 11, 13), {
getTime: function(){
return 12606876e5;
}
}), "Date objects and objects with a `getTime` method are not equal");
ok(!_.isEqual(new Date("Curly"), new Date("Curly")), "Invalid dates are not equal");
// Functions.
ok(!_.isEqual(First, Second), "Different functions with identical bodies and source code representations are not equal");
// RegExps.
ok(_.isEqual(/(?:)/gim, /(?:)/gim), "RegExps with equivalent patterns and flags are equal");
ok(!_.isEqual(/(?:)/g, /(?:)/gi), "RegExps with equivalent patterns and different flags are not equal");
ok(!_.isEqual(/Moe/gim, /Curly/gim), "RegExps with different patterns and equivalent flags are not equal");
ok(!_.isEqual(/(?:)/gi, /(?:)/g), "Commutative equality is implemented for RegExps");
ok(!_.isEqual(/Curly/g, {source: "Larry", global: true, ignoreCase: false, multiline: false}), "RegExps and RegExp-like objects are not equal");
// Empty arrays, array-like objects, and object literals.
ok(_.isEqual({}, {}), "Empty object literals are equal");
ok(_.isEqual([], []), "Empty array literals are equal");
ok(_.isEqual([{}], [{}]), "Empty nested arrays and objects are equal");
ok(!_.isEqual({length: 0}, []), "Array-like objects and arrays are not equal.");
ok(!_.isEqual([], {length: 0}), "Commutative equality is implemented for array-like objects");
ok(!_.isEqual({}, []), "Object literals and array literals are not equal");
ok(!_.isEqual([], {}), "Commutative equality is implemented for objects and arrays");
// Arrays with primitive and object values.
ok(_.isEqual([1, "Larry", true], [1, "Larry", true]), "Arrays containing identical primitives are equal");
ok(_.isEqual([(/Moe/g), new Date(2009, 9, 25)], [(/Moe/g), new Date(2009, 9, 25)]), "Arrays containing equivalent elements are equal");
// Multi-dimensional arrays.
var a = [new Number(47), false, "Larry", /Moe/, new Date(2009, 11, 13), ['running', 'biking', new String('programming')], {a: 47}];
var b = [new Number(47), false, "Larry", /Moe/, new Date(2009, 11, 13), ['running', 'biking', new String('programming')], {a: 47}];
ok(_.isEqual(a, b), "Arrays containing nested arrays and objects are recursively compared");
// Overwrite the methods defined in ES 5.1 section 15.4.4.
a.forEach = a.map = a.filter = a.every = a.indexOf = a.lastIndexOf = a.some = a.reduce = a.reduceRight = null;
b.join = b.pop = b.reverse = b.shift = b.slice = b.splice = b.concat = b.sort = b.unshift = null;
// Array elements and properties.
ok(_.isEqual(a, b), "Arrays containing equivalent elements and different non-numeric properties are equal");
a.push("White Rocks");
ok(!_.isEqual(a, b), "Arrays of different lengths are not equal");
a.push("East Boulder");
b.push("Gunbarrel Ranch", "Teller Farm");
ok(!_.isEqual(a, b), "Arrays of identical lengths containing different elements are not equal");
// Sparse arrays.
ok(_.isEqual(Array(3), Array(3)), "Sparse arrays of identical lengths are equal");
ok(!_.isEqual(Array(3), Array(6)), "Sparse arrays of different lengths are not equal when both are empty");
// Simple objects.
ok(_.isEqual({a: "Curly", b: 1, c: true}, {a: "Curly", b: 1, c: true}), "Objects containing identical primitives are equal");
ok(_.isEqual({a: /Curly/g, b: new Date(2009, 11, 13)}, {a: /Curly/g, b: new Date(2009, 11, 13)}), "Objects containing equivalent members are equal");
ok(!_.isEqual({a: 63, b: 75}, {a: 61, b: 55}), "Objects of identical sizes with different values are not equal");
ok(!_.isEqual({a: 63, b: 75}, {a: 61, c: 55}), "Objects of identical sizes with different property names are not equal");
ok(!_.isEqual({a: 1, b: 2}, {a: 1}), "Objects of different sizes are not equal");
ok(!_.isEqual({a: 1}, {a: 1, b: 2}), "Commutative equality is implemented for objects");
ok(!_.isEqual({x: 1, y: undefined}, {x: 1, z: 2}), "Objects with identical keys and different values are not equivalent");
// `A` contains nested objects and arrays.
a = {
name: new String("Moe Howard"),
age: new Number(77),
stooge: true,
hobbies: ["acting"],
film: {
name: "Sing a Song of Six Pants",
release: new Date(1947, 9, 30),
stars: [new String("Larry Fine"), "Shemp Howard"],
minutes: new Number(16),
seconds: 54
}
};
// `B` contains equivalent nested objects and arrays.
b = {
name: new String("Moe Howard"),
age: new Number(77),
stooge: true,
hobbies: ["acting"],
film: {
name: "Sing a Song of Six Pants",
release: new Date(1947, 9, 30),
stars: [new String("Larry Fine"), "Shemp Howard"],
minutes: new Number(16),
seconds: 54
}
};
ok(_.isEqual(a, b), "Objects with nested equivalent members are recursively compared");
// Instances.
ok(_.isEqual(new First, new First), "Object instances are equal");
ok(!_.isEqual(new First, new Second), "Objects with different constructors and identical own properties are not equal");
ok(!_.isEqual({value: 1}, new First), "Object instances and objects sharing equivalent properties are not equal");
ok(!_.isEqual({value: 2}, new Second), "The prototype chain of objects should not be examined");
// Circular Arrays.
(a = []).push(a);
(b = []).push(b);
ok(_.isEqual(a, b), "Arrays containing circular references are equal");
a.push(new String("Larry"));
b.push(new String("Larry"));
ok(_.isEqual(a, b), "Arrays containing circular references and equivalent properties are equal");
a.push("Shemp");
b.push("Curly");
ok(!_.isEqual(a, b), "Arrays containing circular references and different properties are not equal");
// More circular arrays #767.
a = ["everything is checked but", "this", "is not"];
a[1] = a;
b = ["everything is checked but", ["this", "array"], "is not"];
ok(!_.isEqual(a, b), "Comparison of circular references with non-circular references are not equal");
// Circular Objects.
a = {abc: null};
b = {abc: null};
a.abc = a;
b.abc = b;
ok(_.isEqual(a, b), "Objects containing circular references are equal");
a.def = 75;
b.def = 75;
ok(_.isEqual(a, b), "Objects containing circular references and equivalent properties are equal");
a.def = new Number(75);
b.def = new Number(63);
ok(!_.isEqual(a, b), "Objects containing circular references and different properties are not equal");
// More circular objects #767.
a = {everything: "is checked", but: "this", is: "not"};
a.but = a;
b = {everything: "is checked", but: {that:"object"}, is: "not"};
ok(!_.isEqual(a, b), "Comparison of circular references with non-circular object references are not equal");
// Cyclic Structures.
a = [{abc: null}];
b = [{abc: null}];
(a[0].abc = a).push(a);
(b[0].abc = b).push(b);
ok(_.isEqual(a, b), "Cyclic structures are equal");
a[0].def = "Larry";
b[0].def = "Larry";
ok(_.isEqual(a, b), "Cyclic structures containing equivalent properties are equal");
a[0].def = new String("Larry");
b[0].def = new String("Curly");
ok(!_.isEqual(a, b), "Cyclic structures containing different properties are not equal");
// Complex Circular References.
a = {foo: {b: {foo: {c: {foo: null}}}}};
b = {foo: {b: {foo: {c: {foo: null}}}}};
a.foo.b.foo.c.foo = a;
b.foo.b.foo.c.foo = b;
ok(_.isEqual(a, b), "Cyclic structures with nested and identically-named properties are equal");
// Chaining.
ok(!_.isEqual(_({x: 1, y: undefined}).chain(), _({x: 1, z: 2}).chain()), 'Chained objects containing different values are not equal');
a = _({x: 1, y: 2}).chain();
b = _({x: 1, y: 2}).chain();
equal(_.isEqual(a.isEqual(b), _(true)), true, '`isEqual` can be chained');
// Objects from another frame.
ok(_.isEqual({}, iObject));
});
test("isEmpty", function() {
ok(!_([1]).isEmpty(), '[1] is not empty');
ok(_.isEmpty([]), '[] is empty');
ok(!_.isEmpty({one : 1}), '{one : 1} is not empty');
ok(_.isEmpty({}), '{} is empty');
ok(_.isEmpty(new RegExp('')), 'objects with prototype properties are empty');
ok(_.isEmpty(null), 'null is empty');
ok(_.isEmpty(), 'undefined is empty');
ok(_.isEmpty(''), 'the empty string is empty');
ok(!_.isEmpty('moe'), 'but other strings are not');
var obj = {one : 1};
delete obj.one;
ok(_.isEmpty(obj), 'deleting all the keys from an object empties it');
});
// Setup remote variables for iFrame tests.
var iframe = document.createElement('iframe');
jQuery(iframe).appendTo(document.body);
var iDoc = iframe.contentDocument || iframe.contentWindow.document;
iDoc.write(
"<script>\
parent.iElement = document.createElement('div');\
parent.iArguments = (function(){ return arguments; })(1, 2, 3);\
parent.iArray = [1, 2, 3];\
parent.iString = new String('hello');\
parent.iNumber = new Number(100);\
parent.iFunction = (function(){});\
parent.iDate = new Date();\
parent.iRegExp = /hi/;\
parent.iNaN = NaN;\
parent.iNull = null;\
parent.iBoolean = new Boolean(false);\
parent.iUndefined = undefined;\
parent.iObject = {};\
</script>"
);
iDoc.close();
test("isElement", function() {
ok(!_.isElement('div'), 'strings are not dom elements');
ok(_.isElement($('html')[0]), 'the html tag is a DOM element');
ok(_.isElement(iElement), 'even from another frame');
});
test("isArguments", function() {
var args = (function(){ return arguments; })(1, 2, 3);
ok(!_.isArguments('string'), 'a string is not an arguments object');
ok(!_.isArguments(_.isArguments), 'a function is not an arguments object');
ok(_.isArguments(args), 'but the arguments object is an arguments object');
ok(!_.isArguments(_.toArray(args)), 'but not when it\'s converted into an array');
ok(!_.isArguments([1,2,3]), 'and not vanilla arrays.');
ok(_.isArguments(iArguments), 'even from another frame');
});
test("isObject", function() {
ok(_.isObject(arguments), 'the arguments object is object');
ok(_.isObject([1, 2, 3]), 'and arrays');
ok(_.isObject($('html')[0]), 'and DOM element');
ok(_.isObject(iElement), 'even from another frame');
ok(_.isObject(function () {}), 'and functions');
ok(_.isObject(iFunction), 'even from another frame');
ok(!_.isObject(null), 'but not null');
ok(!_.isObject(undefined), 'and not undefined');
ok(!_.isObject('string'), 'and not string');
ok(!_.isObject(12), 'and not number');
ok(!_.isObject(true), 'and not boolean');
ok(_.isObject(new String('string')), 'but new String()');
});
test("isArray", function() {
ok(!_.isArray(undefined), 'undefined vars are not arrays');
ok(!_.isArray(arguments), 'the arguments object is not an array');
ok(_.isArray([1, 2, 3]), 'but arrays are');
ok(_.isArray(iArray), 'even from another frame');
});
test("isString", function() {
var obj = new String("I am a string object");
ok(!_.isString(document.body), 'the document body is not a string');
ok(_.isString([1, 2, 3].join(', ')), 'but strings are');
ok(_.isString(iString), 'even from another frame');
ok(_.isString("I am a string literal"), 'string literals are');
ok(_.isString(obj), 'so are String objects');
});
test("isNumber", function() {
ok(!_.isNumber('string'), 'a string is not a number');
ok(!_.isNumber(arguments), 'the arguments object is not a number');
ok(!_.isNumber(undefined), 'undefined is not a number');
ok(_.isNumber(3 * 4 - 7 / 10), 'but numbers are');
ok(_.isNumber(NaN), 'NaN *is* a number');
ok(_.isNumber(Infinity), 'Infinity is a number');
ok(_.isNumber(iNumber), 'even from another frame');
ok(!_.isNumber('1'), 'numeric strings are not numbers');
});
test("isBoolean", function() {
ok(!_.isBoolean(2), 'a number is not a boolean');
ok(!_.isBoolean("string"), 'a string is not a boolean');
ok(!_.isBoolean("false"), 'the string "false" is not a boolean');
ok(!_.isBoolean("true"), 'the string "true" is not a boolean');
ok(!_.isBoolean(arguments), 'the arguments object is not a boolean');
ok(!_.isBoolean(undefined), 'undefined is not a boolean');
ok(!_.isBoolean(NaN), 'NaN is not a boolean');
ok(!_.isBoolean(null), 'null is not a boolean');
ok(_.isBoolean(true), 'but true is');
ok(_.isBoolean(false), 'and so is false');
ok(_.isBoolean(iBoolean), 'even from another frame');
});
test("isFunction", function() {
ok(!_.isFunction(undefined), 'undefined vars are not functions');
ok(!_.isFunction([1, 2, 3]), 'arrays are not functions');
ok(!_.isFunction('moe'), 'strings are not functions');
ok(_.isFunction(_.isFunction), 'but functions are');
ok(_.isFunction(iFunction), 'even from another frame');
ok(_.isFunction(function(){}), 'even anonymous ones');
});
test("isDate", function() {
ok(!_.isDate(100), 'numbers are not dates');
ok(!_.isDate({}), 'objects are not dates');
ok(_.isDate(new Date()), 'but dates are');
ok(_.isDate(iDate), 'even from another frame');
});
test("isRegExp", function() {
ok(!_.isRegExp(_.identity), 'functions are not RegExps');
ok(_.isRegExp(/identity/), 'but RegExps are');
ok(_.isRegExp(iRegExp), 'even from another frame');
});
test("isFinite", function() {
ok(!_.isFinite(undefined), 'undefined is not Finite');
ok(!_.isFinite(null), 'null is not Finite');
ok(!_.isFinite(NaN), 'NaN is not Finite');
ok(!_.isFinite(Infinity), 'Infinity is not Finite');
ok(!_.isFinite(-Infinity), '-Infinity is not Finite');
ok(_.isFinite('12'), 'Numeric strings are numbers');
ok(!_.isFinite('1a'), 'Non numeric strings are not numbers');
ok(!_.isFinite(''), 'Empty strings are not numbers');
var obj = new Number(5);
ok(_.isFinite(obj), 'Number instances can be finite');
ok(_.isFinite(0), '0 is Finite');
ok(_.isFinite(123), 'Ints are Finite');
ok(_.isFinite(-12.44), 'Floats are Finite');
});
test("isNaN", function() {
ok(!_.isNaN(undefined), 'undefined is not NaN');
ok(!_.isNaN(null), 'null is not NaN');
ok(!_.isNaN(0), '0 is not NaN');
ok(_.isNaN(NaN), 'but NaN is');
ok(_.isNaN(iNaN), 'even from another frame');
ok(_.isNaN(new Number(NaN)), 'wrapped NaN is still NaN');
});
test("isNull", function() {
ok(!_.isNull(undefined), 'undefined is not null');
ok(!_.isNull(NaN), 'NaN is not null');
ok(_.isNull(null), 'but null is');
ok(_.isNull(iNull), 'even from another frame');
});
test("isUndefined", function() {
ok(!_.isUndefined(1), 'numbers are defined');
ok(!_.isUndefined(null), 'null is defined');
ok(!_.isUndefined(false), 'false is defined');
ok(!_.isUndefined(NaN), 'NaN is defined');
ok(_.isUndefined(), 'nothing is undefined');
ok(_.isUndefined(undefined), 'undefined is undefined');
ok(_.isUndefined(iUndefined), 'even from another frame');
});
if (window.ActiveXObject) {
test("IE host objects", function() {
var xml = new ActiveXObject("Msxml2.DOMDocument.3.0");
ok(!_.isNumber(xml));
ok(!_.isBoolean(xml));
ok(!_.isNaN(xml));
ok(!_.isFunction(xml));
ok(!_.isNull(xml));
ok(!_.isUndefined(xml));
});
}
test("tap", function() {
var intercepted = null;
var interceptor = function(obj) { intercepted = obj; };
var returned = _.tap(1, interceptor);
equal(intercepted, 1, "passes tapped object to interceptor");
equal(returned, 1, "returns tapped object");
returned = _([1,2,3]).chain().
map(function(n){ return n * 2; }).
max().
tap(interceptor).
value();
ok(returned == 6 && intercepted == 6, 'can use tapped objects in a chain');
});
test("has", function () {
var obj = {foo: "bar", func: function () {} };
ok (_.has(obj, "foo"), "has() checks that the object has a property.");
ok (_.has(obj, "baz") == false, "has() returns false if the object doesn't have the property.");
ok (_.has(obj, "func"), "has() works for functions too.");
obj.hasOwnProperty = null;
ok (_.has(obj, "foo"), "has() works even when the hasOwnProperty method is deleted.");
var child = {};
child.prototype = obj;
ok (_.has(child, "foo") == false, "has() does not check the prototype chain for a property.")
});
});

View File

@@ -0,0 +1,80 @@
(function() {
var numbers = [];
for (var i=0; i<1000; i++) numbers.push(i);
var objArray = _.map(numbers, function(n){ return {num : n}; });
var bigObj = {};
_.times(1000, function(n){ bigObj['key' + n] = n; });
var randomized = _.sortBy(numbers, function(){ return Math.random(); });
var deep = _.map(_.range(100), function() { return _.range(1000); });
JSLitmus.test('_.each()', function() {
var timesTwo = [];
_.each(numbers, function(num){ timesTwo.push(num * 2); });
return timesTwo;
});
JSLitmus.test('_(list).each()', function() {
var timesTwo = [];
_(numbers).each(function(num){ timesTwo.push(num * 2); });
return timesTwo;
});
JSLitmus.test('jQuery.each()', function() {
var timesTwo = [];
jQuery.each(numbers, function(){ timesTwo.push(this * 2); });
return timesTwo;
});
JSLitmus.test('_.map()', function() {
return _.map(objArray, function(obj){ return obj.num; });
});
JSLitmus.test('jQuery.map()', function() {
return jQuery.map(objArray, function(obj){ return obj.num; });
});
JSLitmus.test('_.pluck()', function() {
return _.pluck(objArray, 'num');
});
JSLitmus.test('_.uniq()', function() {
return _.uniq(randomized);
});
JSLitmus.test('_.uniq() (sorted)', function() {
return _.uniq(numbers, true);
});
JSLitmus.test('_.sortBy()', function() {
return _.sortBy(numbers, function(num){ return -num; });
});
JSLitmus.test('_.isEqual()', function() {
return _.isEqual(numbers, randomized);
});
JSLitmus.test('_.keys()', function() {
return _.keys(bigObj);
});
JSLitmus.test('_.values()', function() {
return _.values(bigObj);
});
JSLitmus.test('_.intersection()', function() {
return _.intersection(numbers, randomized);
});
JSLitmus.test('_.range()', function() {
return _.range(1000);
});
JSLitmus.test('_.flatten()', function() {
return _.flatten(deep);
});
JSLitmus.test('_.flatten() (shallow)', function() {
return _.flatten(deep, true);
});
})();

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$(document).ready(function() {
var templateSettings;
module("Utility", {
setup: function() {
templateSettings = _.clone(_.templateSettings);
},
teardown: function() {
_.templateSettings = templateSettings;
}
});
test("#750 - Return _ instance.", 2, function() {
var instance = _([]);
ok(_(instance) === instance);
ok(new _(instance) === instance);
});
test("identity", function() {
var moe = {name : 'moe'};
equal(_.identity(moe), moe, 'moe is the same as his identity');
});
test("random", function() {
var array = _.range(1000);
var min = Math.pow(2, 31);
var max = Math.pow(2, 62);
ok(_.every(array, function() {
return _.random(min, max) >= min;
}), "should produce a random number greater than or equal to the minimum number");
ok(_.some(array, function() {
return _.random(Number.MAX_VALUE) > 0;
}), "should produce a random number when passed `Number.MAX_VALUE`");
});
test("uniqueId", function() {
var ids = [], i = 0;
while(i++ < 100) ids.push(_.uniqueId());
equal(_.uniq(ids).length, ids.length, 'can generate a globally-unique stream of ids');
});
test("times", function() {
var vals = [];
_.times(3, function (i) { vals.push(i); });
ok(_.isEqual(vals, [0,1,2]), "is 0 indexed");
//
vals = [];
_(3).times(function(i) { vals.push(i); });
ok(_.isEqual(vals, [0,1,2]), "works as a wrapper");
// collects return values
ok(_.isEqual([0, 1, 2], _.times(3, function(i) { return i; })), "collects return values");
deepEqual(_.times(0, _.identity), []);
deepEqual(_.times(-1, _.identity), []);
deepEqual(_.times(parseFloat('-Infinity'), _.identity), []);
});
test("mixin", function() {
_.mixin({
myReverse: function(string) {
return string.split('').reverse().join('');
}
});
equal(_.myReverse('panacea'), 'aecanap', 'mixed in a function to _');
equal(_('champ').myReverse(), 'pmahc', 'mixed in a function to the OOP wrapper');
});
test("_.escape", function() {
equal(_.escape("Curly & Moe"), "Curly &amp; Moe");
equal(_.escape('<a href="http://moe.com">Curly & Moe\'s</a>'), '&lt;a href=&quot;http://moe.com&quot;&gt;Curly &amp; Moe&#x27;s&lt;/a&gt;');
equal(_.escape("Curly &amp; Moe"), "Curly &amp;amp; Moe");
equal(_.escape(null), '');
});
test("_.unescape", function() {
var string = "Curly & Moe";
equal(_.unescape("Curly &amp; Moe"), string);
equal(_.unescape('&lt;a href=&quot;http://moe.com&quot;&gt;Curly &amp; Moe&#x27;s&lt;/a&gt;'), '<a href="http://moe.com">Curly & Moe\'s</a>');
equal(_.unescape("Curly &amp;amp; Moe"), "Curly &amp; Moe");
equal(_.unescape(null), '');
equal(_.unescape(_.escape(string)), string);
});
test("template", function() {
var basicTemplate = _.template("<%= thing %> is gettin' on my noives!");
var result = basicTemplate({thing : 'This'});
equal(result, "This is gettin' on my noives!", 'can do basic attribute interpolation');
var sansSemicolonTemplate = _.template("A <% this %> B");
equal(sansSemicolonTemplate(), "A B");
var backslashTemplate = _.template("<%= thing %> is \\ridanculous");
equal(backslashTemplate({thing: 'This'}), "This is \\ridanculous");
var escapeTemplate = _.template('<%= a ? "checked=\\"checked\\"" : "" %>');
equal(escapeTemplate({a: true}), 'checked="checked"', 'can handle slash escapes in interpolations.');
var fancyTemplate = _.template("<ul><% \
for (var key in people) { \
%><li><%= people[key] %></li><% } %></ul>");
result = fancyTemplate({people : {moe : "Moe", larry : "Larry", curly : "Curly"}});
equal(result, "<ul><li>Moe</li><li>Larry</li><li>Curly</li></ul>", 'can run arbitrary javascript in templates');
var escapedCharsInJavascriptTemplate = _.template("<ul><% _.each(numbers.split('\\n'), function(item) { %><li><%= item %></li><% }) %></ul>");
result = escapedCharsInJavascriptTemplate({numbers: "one\ntwo\nthree\nfour"});
equal(result, "<ul><li>one</li><li>two</li><li>three</li><li>four</li></ul>", 'Can use escaped characters (e.g. \\n) in Javascript');
var namespaceCollisionTemplate = _.template("<%= pageCount %> <%= thumbnails[pageCount] %> <% _.each(thumbnails, function(p) { %><div class=\"thumbnail\" rel=\"<%= p %>\"></div><% }); %>");
result = namespaceCollisionTemplate({
pageCount: 3,
thumbnails: {
1: "p1-thumbnail.gif",
2: "p2-thumbnail.gif",
3: "p3-thumbnail.gif"
}
});
equal(result, "3 p3-thumbnail.gif <div class=\"thumbnail\" rel=\"p1-thumbnail.gif\"></div><div class=\"thumbnail\" rel=\"p2-thumbnail.gif\"></div><div class=\"thumbnail\" rel=\"p3-thumbnail.gif\"></div>");
var noInterpolateTemplate = _.template("<div><p>Just some text. Hey, I know this is silly but it aids consistency.</p></div>");
result = noInterpolateTemplate();
equal(result, "<div><p>Just some text. Hey, I know this is silly but it aids consistency.</p></div>");
var quoteTemplate = _.template("It's its, not it's");
equal(quoteTemplate({}), "It's its, not it's");
var quoteInStatementAndBody = _.template("<%\
if(foo == 'bar'){ \
%>Statement quotes and 'quotes'.<% } %>");
equal(quoteInStatementAndBody({foo: "bar"}), "Statement quotes and 'quotes'.");
var withNewlinesAndTabs = _.template('This\n\t\tis: <%= x %>.\n\tok.\nend.');
equal(withNewlinesAndTabs({x: 'that'}), 'This\n\t\tis: that.\n\tok.\nend.');
var template = _.template("<i><%- value %></i>");
var result = template({value: "<script>"});
equal(result, '<i>&lt;script&gt;</i>');
var stooge = {
name: "Moe",
template: _.template("I'm <%= this.name %>")
};
equal(stooge.template(), "I'm Moe");
if (!$.browser.msie) {
var fromHTML = _.template($('#template').html());
equal(fromHTML({data : 12345}).replace(/\s/g, ''), '<li>24690</li>');
}
_.templateSettings = {
evaluate : /\{\{([\s\S]+?)\}\}/g,
interpolate : /\{\{=([\s\S]+?)\}\}/g
};
var custom = _.template("<ul>{{ for (var key in people) { }}<li>{{= people[key] }}</li>{{ } }}</ul>");
result = custom({people : {moe : "Moe", larry : "Larry", curly : "Curly"}});
equal(result, "<ul><li>Moe</li><li>Larry</li><li>Curly</li></ul>", 'can run arbitrary javascript in templates');
var customQuote = _.template("It's its, not it's");
equal(customQuote({}), "It's its, not it's");
var quoteInStatementAndBody = _.template("{{ if(foo == 'bar'){ }}Statement quotes and 'quotes'.{{ } }}");
equal(quoteInStatementAndBody({foo: "bar"}), "Statement quotes and 'quotes'.");
_.templateSettings = {
evaluate : /<\?([\s\S]+?)\?>/g,
interpolate : /<\?=([\s\S]+?)\?>/g
};
var customWithSpecialChars = _.template("<ul><? for (var key in people) { ?><li><?= people[key] ?></li><? } ?></ul>");
result = customWithSpecialChars({people : {moe : "Moe", larry : "Larry", curly : "Curly"}});
equal(result, "<ul><li>Moe</li><li>Larry</li><li>Curly</li></ul>", 'can run arbitrary javascript in templates');
var customWithSpecialCharsQuote = _.template("It's its, not it's");
equal(customWithSpecialCharsQuote({}), "It's its, not it's");
var quoteInStatementAndBody = _.template("<? if(foo == 'bar'){ ?>Statement quotes and 'quotes'.<? } ?>");
equal(quoteInStatementAndBody({foo: "bar"}), "Statement quotes and 'quotes'.");
_.templateSettings = {
interpolate : /\{\{(.+?)\}\}/g
};
var mustache = _.template("Hello {{planet}}!");
equal(mustache({planet : "World"}), "Hello World!", "can mimic mustache.js");
var templateWithNull = _.template("a null undefined {{planet}}");
equal(templateWithNull({planet : "world"}), "a null undefined world", "can handle missing escape and evaluate settings");
});
test('_.template provides the generated function source, when a SyntaxError occurs', function() {
try {
_.template('<b><%= if x %></b>');
} catch (ex) {
var source = ex.source;
}
ok(/__p/.test(source));
});
test('_.template handles \\u2028 & \\u2029', function() {
var tmpl = _.template('<p>\u2028<%= "\\u2028\\u2029" %>\u2029</p>');
strictEqual(tmpl(), '<p>\u2028\u2028\u2029\u2029</p>');
});
test('result calls functions and returns primitives', function() {
var obj = {w: '', x: 'x', y: function(){ return this.x; }};
strictEqual(_.result(obj, 'w'), '');
strictEqual(_.result(obj, 'x'), 'x');
strictEqual(_.result(obj, 'y'), 'x');
strictEqual(_.result(obj, 'z'), undefined);
strictEqual(_.result(null, 'x'), undefined);
});
test('_.templateSettings.variable', function() {
var s = '<%=data.x%>';
var data = {x: 'x'};
strictEqual(_.template(s, data, {variable: 'data'}), 'x');
_.templateSettings.variable = 'data';
strictEqual(_.template(s)(data), 'x');
});
test('#547 - _.templateSettings is unchanged by custom settings.', function() {
ok(!_.templateSettings.variable);
_.template('', {}, {variable: 'x'});
ok(!_.templateSettings.variable);
});
test('#556 - undefined template variables.', function() {
var template = _.template('<%=x%>');
strictEqual(template({x: null}), '');
strictEqual(template({x: undefined}), '');
var templateEscaped = _.template('<%-x%>');
strictEqual(templateEscaped({x: null}), '');
strictEqual(templateEscaped({x: undefined}), '');
var templateWithProperty = _.template('<%=x.foo%>');
strictEqual(templateWithProperty({x: {} }), '');
strictEqual(templateWithProperty({x: {} }), '');
var templateWithPropertyEscaped = _.template('<%-x.foo%>');
strictEqual(templateWithPropertyEscaped({x: {} }), '');
strictEqual(templateWithPropertyEscaped({x: {} }), '');
});
test('interpolate evaluates code only once.', 2, function() {
var count = 0;
var template = _.template('<%= f() %>');
template({f: function(){ ok(!(count++)); }});
var countEscaped = 0;
var templateEscaped = _.template('<%- f() %>');
templateEscaped({f: function(){ ok(!(countEscaped++)); }});
});
test('#746 - _.template settings are not modified.', 1, function() {
var settings = {};
_.template('', null, settings);
deepEqual(settings, {});
});
test('#779 - delimeters are applied to unescaped text.', 1, function() {
var template = _.template('<<\nx\n>>', null, {evaluate: /<<(.*?)>>/g});
strictEqual(template(), '<<\nx\n>>');
});
});

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// JSLitmus.js
//
// History:
// 2008-10-27: Initial release
// 2008-11-09: Account for iteration loop overhead
// 2008-11-13: Added OS detection
// 2009-02-25: Create tinyURL automatically, shift-click runs tests in reverse
//
// Copyright (c) 2008-2009, Robert Kieffer
// All Rights Reserved
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the
// Software), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
(function() {
// Private methods and state
// Get platform info but don't go crazy trying to recognize everything
// that's out there. This is just for the major platforms and OSes.
var platform = 'unknown platform', ua = navigator.userAgent;
// Detect OS
var oses = ['Windows','iPhone OS','(Intel |PPC )?Mac OS X','Linux'].join('|');
var pOS = new RegExp('((' + oses + ') [^ \);]*)').test(ua) ? RegExp.$1 : null;
if (!pOS) pOS = new RegExp('((' + oses + ')[^ \);]*)').test(ua) ? RegExp.$1 : null;
// Detect browser
var pName = /(Chrome|MSIE|Safari|Opera|Firefox)/.test(ua) ? RegExp.$1 : null;
// Detect version
var vre = new RegExp('(Version|' + pName + ')[ \/]([^ ;]*)');
var pVersion = (pName && vre.test(ua)) ? RegExp.$2 : null;
var platform = (pOS && pName && pVersion) ? pName + ' ' + pVersion + ' on ' + pOS : 'unknown platform';
/**
* A smattering of methods that are needed to implement the JSLitmus testbed.
*/
var jsl = {
/**
* Enhanced version of escape()
*/
escape: function(s) {
s = s.replace(/,/g, '\\,');
s = escape(s);
s = s.replace(/\+/g, '%2b');
s = s.replace(/ /g, '+');
return s;
},
/**
* Get an element by ID.
*/
$: function(id) {
return document.getElementById(id);
},
/**
* Null function
*/
F: function() {},
/**
* Set the status shown in the UI
*/
status: function(msg) {
var el = jsl.$('jsl_status');
if (el) el.innerHTML = msg || '';
},
/**
* Convert a number to an abbreviated string like, "15K" or "10M"
*/
toLabel: function(n) {
if (n == Infinity) {
return 'Infinity';
} else if (n > 1e9) {
n = Math.round(n/1e8);
return n/10 + 'B';
} else if (n > 1e6) {
n = Math.round(n/1e5);
return n/10 + 'M';
} else if (n > 1e3) {
n = Math.round(n/1e2);
return n/10 + 'K';
}
return n;
},
/**
* Copy properties from src to dst
*/
extend: function(dst, src) {
for (var k in src) dst[k] = src[k]; return dst;
},
/**
* Like Array.join(), but for the key-value pairs in an object
*/
join: function(o, delimit1, delimit2) {
if (o.join) return o.join(delimit1); // If it's an array
var pairs = [];
for (var k in o) pairs.push(k + delimit1 + o[k]);
return pairs.join(delimit2);
},
/**
* Array#indexOf isn't supported in IE, so we use this as a cross-browser solution
*/
indexOf: function(arr, o) {
if (arr.indexOf) return arr.indexOf(o);
for (var i = 0; i < this.length; i++) if (arr[i] === o) return i;
return -1;
}
};
/**
* Test manages a single test (created with
* JSLitmus.test())
*
* @private
*/
var Test = function (name, f) {
if (!f) throw new Error('Undefined test function');
if (!(/function[^\(]*\(([^,\)]*)/).test(f.toString())) {
throw new Error('"' + name + '" test: Test is not a valid Function object');
}
this.loopArg = RegExp.$1;
this.name = name;
this.f = f;
};
jsl.extend(Test, /** @lends Test */ {
/** Calibration tests for establishing iteration loop overhead */
CALIBRATIONS: [
new Test('calibrating loop', function(count) {while (count--);}),
new Test('calibrating function', jsl.F)
],
/**
* Run calibration tests. Returns true if calibrations are not yet
* complete (in which case calling code should run the tests yet again).
* onCalibrated - Callback to invoke when calibrations have finished
*/
calibrate: function(onCalibrated) {
for (var i = 0; i < Test.CALIBRATIONS.length; i++) {
var cal = Test.CALIBRATIONS[i];
if (cal.running) return true;
if (!cal.count) {
cal.isCalibration = true;
cal.onStop = onCalibrated;
//cal.MIN_TIME = .1; // Do calibrations quickly
cal.run(2e4);
return true;
}
}
return false;
}
});
jsl.extend(Test.prototype, {/** @lends Test.prototype */
/** Initial number of iterations */
INIT_COUNT: 10,
/** Max iterations allowed (i.e. used to detect bad looping functions) */
MAX_COUNT: 1e9,
/** Minimum time a test should take to get valid results (secs) */
MIN_TIME: .5,
/** Callback invoked when test state changes */
onChange: jsl.F,
/** Callback invoked when test is finished */
onStop: jsl.F,
/**
* Reset test state
*/
reset: function() {
delete this.count;
delete this.time;
delete this.running;
delete this.error;
},
/**
* Run the test (in a timeout). We use a timeout to make sure the browser
* has a chance to finish rendering any UI changes we've made, like
* updating the status message.
*/
run: function(count) {
count = count || this.INIT_COUNT;
jsl.status(this.name + ' x ' + count);
this.running = true;
var me = this;
setTimeout(function() {me._run(count);}, 200);
},
/**
* The nuts and bolts code that actually runs a test
*/
_run: function(count) {
var me = this;
// Make sure calibration tests have run
if (!me.isCalibration && Test.calibrate(function() {me.run(count);})) return;
this.error = null;
try {
var start, f = this.f, now, i = count;
// Start the timer
start = new Date();
// Now for the money shot. If this is a looping function ...
if (this.loopArg) {
// ... let it do the iteration itself
f(count);
} else {
// ... otherwise do the iteration for it
while (i--) f();
}
// Get time test took (in secs)
this.time = Math.max(1,new Date() - start)/1000;
// Store iteration count and per-operation time taken
this.count = count;
this.period = this.time/count;
// Do we need to do another run?
this.running = this.time <= this.MIN_TIME;
// ... if so, compute how many times we should iterate
if (this.running) {
// Bump the count to the nearest power of 2
var x = this.MIN_TIME/this.time;
var pow = Math.pow(2, Math.max(1, Math.ceil(Math.log(x)/Math.log(2))));
count *= pow;
if (count > this.MAX_COUNT) {
throw new Error('Max count exceeded. If this test uses a looping function, make sure the iteration loop is working properly.');
}
}
} catch (e) {
// Exceptions are caught and displayed in the test UI
this.reset();
this.error = e;
}
// Figure out what to do next
if (this.running) {
me.run(count);
} else {
jsl.status('');
me.onStop(me);
}
// Finish up
this.onChange(this);
},
/**
* Get the number of operations per second for this test.
*
* @param normalize if true, iteration loop overhead taken into account
*/
getHz: function(/**Boolean*/ normalize) {
var p = this.period;
// Adjust period based on the calibration test time
if (normalize && !this.isCalibration) {
var cal = Test.CALIBRATIONS[this.loopArg ? 0 : 1];
// If the period is within 20% of the calibration time, then zero the
// it out
p = p < cal.period*1.2 ? 0 : p - cal.period;
}
return Math.round(1/p);
},
/**
* Get a friendly string describing the test
*/
toString: function() {
return this.name + ' - ' + this.time/this.count + ' secs';
}
});
// CSS we need for the UI
var STYLESHEET = '<style> \
#jslitmus {font-family:sans-serif; font-size: 12px;} \
#jslitmus a {text-decoration: none;} \
#jslitmus a:hover {text-decoration: underline;} \
#jsl_status { \
margin-top: 10px; \
font-size: 10px; \
color: #888; \
} \
A IMG {border:none} \
#test_results { \
margin-top: 10px; \
font-size: 12px; \
font-family: sans-serif; \
border-collapse: collapse; \
border-spacing: 0px; \
} \
#test_results th, #test_results td { \
border: solid 1px #ccc; \
vertical-align: top; \
padding: 3px; \
} \
#test_results th { \
vertical-align: bottom; \
background-color: #ccc; \
padding: 1px; \
font-size: 10px; \
} \
#test_results #test_platform { \
color: #444; \
text-align:center; \
} \
#test_results .test_row { \
color: #006; \
cursor: pointer; \
} \
#test_results .test_nonlooping { \
border-left-style: dotted; \
border-left-width: 2px; \
} \
#test_results .test_looping { \
border-left-style: solid; \
border-left-width: 2px; \
} \
#test_results .test_name {white-space: nowrap;} \
#test_results .test_pending { \
} \
#test_results .test_running { \
font-style: italic; \
} \
#test_results .test_done {} \
#test_results .test_done { \
text-align: right; \
font-family: monospace; \
} \
#test_results .test_error {color: #600;} \
#test_results .test_error .error_head {font-weight:bold;} \
#test_results .test_error .error_body {font-size:85%;} \
#test_results .test_row:hover td { \
background-color: #ffc; \
text-decoration: underline; \
} \
#chart { \
margin: 10px 0px; \
width: 250px; \
} \
#chart img { \
border: solid 1px #ccc; \
margin-bottom: 5px; \
} \
#chart #tiny_url { \
height: 40px; \
width: 250px; \
} \
#jslitmus_credit { \
font-size: 10px; \
color: #888; \
margin-top: 8px; \
} \
</style>';
// HTML markup for the UI
var MARKUP = '<div id="jslitmus"> \
<button onclick="JSLitmus.runAll(event)">Run Tests</button> \
<button id="stop_button" disabled="disabled" onclick="JSLitmus.stop()">Stop Tests</button> \
<br \> \
<br \> \
<input type="checkbox" style="vertical-align: middle" id="test_normalize" checked="checked" onchange="JSLitmus.renderAll()""> Normalize results \
<table id="test_results"> \
<colgroup> \
<col /> \
<col width="100" /> \
</colgroup> \
<tr><th id="test_platform" colspan="2">' + platform + '</th></tr> \
<tr><th>Test</th><th>Ops/sec</th></tr> \
<tr id="test_row_template" class="test_row" style="display:none"> \
<td class="test_name"></td> \
<td class="test_result">Ready</td> \
</tr> \
</table> \
<div id="jsl_status"></div> \
<div id="chart" style="display:none"> \
<a id="chart_link" target="_blank"><img id="chart_image"></a> \
TinyURL (for chart): \
<iframe id="tiny_url" frameBorder="0" scrolling="no" src=""></iframe> \
</div> \
<a id="jslitmus_credit" title="JSLitmus home page" href="http://code.google.com/p/jslitmus" target="_blank">Powered by JSLitmus</a> \
</div>';
/**
* The public API for creating and running tests
*/
window.JSLitmus = {
/** The list of all tests that have been registered with JSLitmus.test */
_tests: [],
/** The queue of tests that need to be run */
_queue: [],
/**
* The parsed query parameters the current page URL. This is provided as a
* convenience for test functions - it's not used by JSLitmus proper
*/
params: {},
/**
* Initialize
*/
_init: function() {
// Parse query params into JSLitmus.params[] hash
var match = (location + '').match(/([^?#]*)(#.*)?$/);
if (match) {
var pairs = match[1].split('&');
for (var i = 0; i < pairs.length; i++) {
var pair = pairs[i].split('=');
if (pair.length > 1) {
var key = pair.shift();
var value = pair.length > 1 ? pair.join('=') : pair[0];
this.params[key] = value;
}
}
}
// Write out the stylesheet. We have to do this here because IE
// doesn't honor sheets written after the document has loaded.
document.write(STYLESHEET);
// Setup the rest of the UI once the document is loaded
if (window.addEventListener) {
window.addEventListener('load', this._setup, false);
} else if (document.addEventListener) {
document.addEventListener('load', this._setup, false);
} else if (window.attachEvent) {
window.attachEvent('onload', this._setup);
}
return this;
},
/**
* Set up the UI
*/
_setup: function() {
var el = jsl.$('jslitmus_container');
if (!el) document.body.appendChild(el = document.createElement('div'));
el.innerHTML = MARKUP;
// Render the UI for all our tests
for (var i=0; i < JSLitmus._tests.length; i++)
JSLitmus.renderTest(JSLitmus._tests[i]);
},
/**
* (Re)render all the test results
*/
renderAll: function() {
for (var i = 0; i < JSLitmus._tests.length; i++)
JSLitmus.renderTest(JSLitmus._tests[i]);
JSLitmus.renderChart();
},
/**
* (Re)render the chart graphics
*/
renderChart: function() {
var url = JSLitmus.chartUrl();
jsl.$('chart_link').href = url;
jsl.$('chart_image').src = url;
jsl.$('chart').style.display = '';
// Update the tiny URL
jsl.$('tiny_url').src = 'http://tinyurl.com/api-create.php?url='+escape(url);
},
/**
* (Re)render the results for a specific test
*/
renderTest: function(test) {
// Make a new row if needed
if (!test._row) {
var trow = jsl.$('test_row_template');
if (!trow) return;
test._row = trow.cloneNode(true);
test._row.style.display = '';
test._row.id = '';
test._row.onclick = function() {JSLitmus._queueTest(test);};
test._row.title = 'Run ' + test.name + ' test';
trow.parentNode.appendChild(test._row);
test._row.cells[0].innerHTML = test.name;
}
var cell = test._row.cells[1];
var cns = [test.loopArg ? 'test_looping' : 'test_nonlooping'];
if (test.error) {
cns.push('test_error');
cell.innerHTML =
'<div class="error_head">' + test.error + '</div>' +
'<ul class="error_body"><li>' +
jsl.join(test.error, ': ', '</li><li>') +
'</li></ul>';
} else {
if (test.running) {
cns.push('test_running');
cell.innerHTML = 'running';
} else if (jsl.indexOf(JSLitmus._queue, test) >= 0) {
cns.push('test_pending');
cell.innerHTML = 'pending';
} else if (test.count) {
cns.push('test_done');
var hz = test.getHz(jsl.$('test_normalize').checked);
cell.innerHTML = hz != Infinity ? hz : '&infin;';
} else {
cell.innerHTML = 'ready';
}
}
cell.className = cns.join(' ');
},
/**
* Create a new test
*/
test: function(name, f) {
// Create the Test object
var test = new Test(name, f);
JSLitmus._tests.push(test);
// Re-render if the test state changes
test.onChange = JSLitmus.renderTest;
// Run the next test if this one finished
test.onStop = function(test) {
if (JSLitmus.onTestFinish) JSLitmus.onTestFinish(test);
JSLitmus.currentTest = null;
JSLitmus._nextTest();
};
// Render the new test
this.renderTest(test);
},
/**
* Add all tests to the run queue
*/
runAll: function(e) {
e = e || window.event;
var reverse = e && e.shiftKey, len = JSLitmus._tests.length;
for (var i = 0; i < len; i++) {
JSLitmus._queueTest(JSLitmus._tests[!reverse ? i : (len - i - 1)]);
}
},
/**
* Remove all tests from the run queue. The current test has to finish on
* it's own though
*/
stop: function() {
while (JSLitmus._queue.length) {
var test = JSLitmus._queue.shift();
JSLitmus.renderTest(test);
}
},
/**
* Run the next test in the run queue
*/
_nextTest: function() {
if (!JSLitmus.currentTest) {
var test = JSLitmus._queue.shift();
if (test) {
jsl.$('stop_button').disabled = false;
JSLitmus.currentTest = test;
test.run();
JSLitmus.renderTest(test);
if (JSLitmus.onTestStart) JSLitmus.onTestStart(test);
} else {
jsl.$('stop_button').disabled = true;
JSLitmus.renderChart();
}
}
},
/**
* Add a test to the run queue
*/
_queueTest: function(test) {
if (jsl.indexOf(JSLitmus._queue, test) >= 0) return;
JSLitmus._queue.push(test);
JSLitmus.renderTest(test);
JSLitmus._nextTest();
},
/**
* Generate a Google Chart URL that shows the data for all tests
*/
chartUrl: function() {
var n = JSLitmus._tests.length, markers = [], data = [];
var d, min = 0, max = -1e10;
var normalize = jsl.$('test_normalize').checked;
// Gather test data
for (var i=0; i < JSLitmus._tests.length; i++) {
var test = JSLitmus._tests[i];
if (test.count) {
var hz = test.getHz(normalize);
var v = hz != Infinity ? hz : 0;
data.push(v);
markers.push('t' + jsl.escape(test.name + '(' + jsl.toLabel(hz)+ ')') + ',000000,0,' +
markers.length + ',10');
max = Math.max(v, max);
}
}
if (markers.length <= 0) return null;
// Build chart title
var title = document.getElementsByTagName('title');
title = (title && title.length) ? title[0].innerHTML : null;
var chart_title = [];
if (title) chart_title.push(title);
chart_title.push('Ops/sec (' + platform + ')');
// Build labels
var labels = [jsl.toLabel(min), jsl.toLabel(max)];
var w = 250, bw = 15;
var bs = 5;
var h = markers.length*(bw + bs) + 30 + chart_title.length*20;
var params = {
chtt: escape(chart_title.join('|')),
chts: '000000,10',
cht: 'bhg', // chart type
chd: 't:' + data.join(','), // data set
chds: min + ',' + max, // max/min of data
chxt: 'x', // label axes
chxl: '0:|' + labels.join('|'), // labels
chsp: '0,1',
chm: markers.join('|'), // test names
chbh: [bw, 0, bs].join(','), // bar widths
// chf: 'bg,lg,0,eeeeee,0,eeeeee,.5,ffffff,1', // gradient
chs: w + 'x' + h
};
return 'http://chart.apis.google.com/chart?' + jsl.join(params, '=', '&');
}
};
JSLitmus._init();
})();

View File

@@ -0,0 +1,244 @@
/**
* QUnit v1.12.0 - A JavaScript Unit Testing Framework
*
* http://qunitjs.com
*
* Copyright 2012 jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*/
/** Font Family and Sizes */
#qunit-tests, #qunit-header, #qunit-banner, #qunit-testrunner-toolbar, #qunit-userAgent, #qunit-testresult {
font-family: "Helvetica Neue Light", "HelveticaNeue-Light", "Helvetica Neue", Calibri, Helvetica, Arial, sans-serif;
}
#qunit-testrunner-toolbar, #qunit-userAgent, #qunit-testresult, #qunit-tests li { font-size: small; }
#qunit-tests { font-size: smaller; }
/** Resets */
#qunit-tests, #qunit-header, #qunit-banner, #qunit-userAgent, #qunit-testresult, #qunit-modulefilter {
margin: 0;
padding: 0;
}
/** Header */
#qunit-header {
padding: 0.5em 0 0.5em 1em;
color: #8699a4;
background-color: #0d3349;
font-size: 1.5em;
line-height: 1em;
font-weight: normal;
border-radius: 5px 5px 0 0;
-moz-border-radius: 5px 5px 0 0;
-webkit-border-top-right-radius: 5px;
-webkit-border-top-left-radius: 5px;
}
#qunit-header a {
text-decoration: none;
color: #c2ccd1;
}
#qunit-header a:hover,
#qunit-header a:focus {
color: #fff;
}
#qunit-testrunner-toolbar label {
display: inline-block;
padding: 0 .5em 0 .1em;
}
#qunit-banner {
height: 5px;
}
#qunit-testrunner-toolbar {
padding: 0.5em 0 0.5em 2em;
color: #5E740B;
background-color: #eee;
overflow: hidden;
}
#qunit-userAgent {
padding: 0.5em 0 0.5em 2.5em;
background-color: #2b81af;
color: #fff;
text-shadow: rgba(0, 0, 0, 0.5) 2px 2px 1px;
}
#qunit-modulefilter-container {
float: right;
}
/** Tests: Pass/Fail */
#qunit-tests {
list-style-position: inside;
}
#qunit-tests li {
padding: 0.4em 0.5em 0.4em 2.5em;
border-bottom: 1px solid #fff;
list-style-position: inside;
}
#qunit-tests.hidepass li.pass, #qunit-tests.hidepass li.running {
display: none;
}
#qunit-tests li strong {
cursor: pointer;
}
#qunit-tests li a {
padding: 0.5em;
color: #c2ccd1;
text-decoration: none;
}
#qunit-tests li a:hover,
#qunit-tests li a:focus {
color: #000;
}
#qunit-tests li .runtime {
float: right;
font-size: smaller;
}
.qunit-assert-list {
margin-top: 0.5em;
padding: 0.5em;
background-color: #fff;
border-radius: 5px;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
}
.qunit-collapsed {
display: none;
}
#qunit-tests table {
border-collapse: collapse;
margin-top: .2em;
}
#qunit-tests th {
text-align: right;
vertical-align: top;
padding: 0 .5em 0 0;
}
#qunit-tests td {
vertical-align: top;
}
#qunit-tests pre {
margin: 0;
white-space: pre-wrap;
word-wrap: break-word;
}
#qunit-tests del {
background-color: #e0f2be;
color: #374e0c;
text-decoration: none;
}
#qunit-tests ins {
background-color: #ffcaca;
color: #500;
text-decoration: none;
}
/*** Test Counts */
#qunit-tests b.counts { color: black; }
#qunit-tests b.passed { color: #5E740B; }
#qunit-tests b.failed { color: #710909; }
#qunit-tests li li {
padding: 5px;
background-color: #fff;
border-bottom: none;
list-style-position: inside;
}
/*** Passing Styles */
#qunit-tests li li.pass {
color: #3c510c;
background-color: #fff;
border-left: 10px solid #C6E746;
}
#qunit-tests .pass { color: #528CE0; background-color: #D2E0E6; }
#qunit-tests .pass .test-name { color: #366097; }
#qunit-tests .pass .test-actual,
#qunit-tests .pass .test-expected { color: #999999; }
#qunit-banner.qunit-pass { background-color: #C6E746; }
/*** Failing Styles */
#qunit-tests li li.fail {
color: #710909;
background-color: #fff;
border-left: 10px solid #EE5757;
white-space: pre;
}
#qunit-tests > li:last-child {
border-radius: 0 0 5px 5px;
-moz-border-radius: 0 0 5px 5px;
-webkit-border-bottom-right-radius: 5px;
-webkit-border-bottom-left-radius: 5px;
}
#qunit-tests .fail { color: #000000; background-color: #EE5757; }
#qunit-tests .fail .test-name,
#qunit-tests .fail .module-name { color: #000000; }
#qunit-tests .fail .test-actual { color: #EE5757; }
#qunit-tests .fail .test-expected { color: green; }
#qunit-banner.qunit-fail { background-color: #EE5757; }
/** Result */
#qunit-testresult {
padding: 0.5em 0.5em 0.5em 2.5em;
color: #2b81af;
background-color: #D2E0E6;
border-bottom: 1px solid white;
}
#qunit-testresult .module-name {
font-weight: bold;
}
/** Fixture */
#qunit-fixture {
position: absolute;
top: -10000px;
left: -10000px;
width: 1000px;
height: 1000px;
}

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/*
* QtWebKit-powered headless test runner using PhantomJS
*
* PhantomJS binaries: http://phantomjs.org/download.html
* Requires PhantomJS 1.6+ (1.7+ recommended)
*
* Run with:
* phantomjs runner.js [url-of-your-qunit-testsuite]
*
* e.g.
* phantomjs runner.js http://localhost/qunit/test/index.html
*/
/*jshint latedef:false */
/*global phantom:false, require:false, console:false, window:false, QUnit:false */
(function() {
'use strict';
var args = require('system').args;
// arg[0]: scriptName, args[1...]: arguments
if (args.length !== 2) {
console.error('Usage:\n phantomjs runner.js [url-of-your-qunit-testsuite]');
phantom.exit(1);
}
var url = args[1],
page = require('webpage').create();
// Route `console.log()` calls from within the Page context to the main Phantom context (i.e. current `this`)
page.onConsoleMessage = function(msg) {
console.log(msg);
};
page.onInitialized = function() {
page.evaluate(addLogging);
};
page.onCallback = function(message) {
var result,
failed;
if (message) {
if (message.name === 'QUnit.done') {
result = message.data;
failed = !result || result.failed;
phantom.exit(failed ? 1 : 0);
}
}
};
page.open(url, function(status) {
if (status !== 'success') {
console.error('Unable to access network: ' + status);
phantom.exit(1);
} else {
// Cannot do this verification with the 'DOMContentLoaded' handler because it
// will be too late to attach it if a page does not have any script tags.
var qunitMissing = page.evaluate(function() { return (typeof QUnit === 'undefined' || !QUnit); });
if (qunitMissing) {
console.error('The `QUnit` object is not present on this page.');
phantom.exit(1);
}
// Do nothing... the callback mechanism will handle everything!
}
});
function addLogging() {
window.document.addEventListener('DOMContentLoaded', function() {
var current_test_assertions = [];
QUnit.log(function(details) {
var response;
// Ignore passing assertions
if (details.result) {
return;
}
response = details.message || '';
if (typeof details.expected !== 'undefined') {
if (response) {
response += ', ';
}
response += 'expected: ' + details.expected + ', but was: ' + details.actual;
if (details.source) {
response += "\n" + details.source;
}
}
current_test_assertions.push('Failed assertion: ' + response);
});
QUnit.testDone(function(result) {
var i,
len,
name = result.module + ': ' + result.name;
if (result.failed) {
console.log('Test failed: ' + name);
for (i = 0, len = current_test_assertions.length; i < len; i++) {
console.log(' ' + current_test_assertions[i]);
}
}
current_test_assertions.length = 0;
});
QUnit.done(function(result) {
console.log('Took ' + result.runtime + 'ms to run ' + result.total + ' tests. ' + result.passed + ' passed, ' + result.failed + ' failed.');
if (typeof window.callPhantom === 'function') {
window.callPhantom({
'name': 'QUnit.done',
'data': result
});
}
});
}, false);
}
})();