diff options
Diffstat (limited to 'Godeps/_workspace/src/github.com/robertkrimen/otto/underscore_collections_test.go')
-rw-r--r-- | Godeps/_workspace/src/github.com/robertkrimen/otto/underscore_collections_test.go | 698 |
1 files changed, 0 insertions, 698 deletions
diff --git a/Godeps/_workspace/src/github.com/robertkrimen/otto/underscore_collections_test.go b/Godeps/_workspace/src/github.com/robertkrimen/otto/underscore_collections_test.go deleted file mode 100644 index 9afc2a2b2..000000000 --- a/Godeps/_workspace/src/github.com/robertkrimen/otto/underscore_collections_test.go +++ /dev/null @@ -1,698 +0,0 @@ -package otto - -import ( - "testing" -) - -// each -func Test_underscore_collections_0(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// map -func Test_underscore_collections_1(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - - // TEST: ReferenceError: document is not defined - return; - - 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'); - }); - `) - }) -} - -// reduce -func Test_underscore_collections_2(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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 ifnull; - try { - _.reduce(null, function(){}); - } catch (ex) { - ifnull = ex; - } - ok(ifnull instanceof TypeError, 'handles a null (without inital 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'); - }); - `) - }) -} - -// reduceRight -func Test_underscore_collections_3(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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 inital 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); - }); - `) - }) -} - -// find -func Test_underscore_collections_4(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// detect -func Test_underscore_collections_5(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// select -func Test_underscore_collections_6(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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"'); - }); - `) - }) -} - -// reject -func Test_underscore_collections_7(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// all -func Test_underscore_collections_8(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// any -func Test_underscore_collections_9(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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; - }); - `) - }) -} - -// include -func Test_underscore_collections_10(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// invoke -func Test_underscore_collections_11(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// invoke w/ function reference -func Test_underscore_collections_12(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// invoke when strings have a call method -func Test_underscore_collections_13(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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"); - }); - `) - }) -} - -// pluck -func Test_underscore_collections_14(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// where -func Test_underscore_collections_15(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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); - }); - `) - }) -} - -// findWhere -func Test_underscore_collections_16(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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}); - }); - `) - }) -} - -// max -func Test_underscore_collections_17(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - - // TEST: Takes too long - return; - - equal(299999, _.max(_.range(1,300000)), "Maximum value of a too-big array"); - }); - `) - }) -} - -// min -func Test_underscore_collections_18(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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); - - // TEST: Takes too long - return; - - equal(1, _.min(_.range(1,300000)), "Minimum value of a too-big array"); - }); - `) - }) -} - -// sortBy -func Test_underscore_collections_19(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// groupBy -func Test_underscore_collections_20(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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); - }); - `) - }) -} - -// countBy -func Test_underscore_collections_21(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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); - }); - `) - }) -} - -// sortedIndex -func Test_underscore_collections_22(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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); - }); - `) - }) -} - -// shuffle -func Test_underscore_collections_23(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - }); - `) - }) -} - -// toArray -func Test_underscore_collections_24(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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: ReferenceError: document is not defined - return; - - // test in IE < 9 - try { - var actual = _.toArray(document.childNodes); - } catch(ex) { } - - ok(_.isArray(actual), 'should not throw converting a node list'); - }); - `) - }) -} - -// size -func Test_underscore_collections_25(t *testing.T) { - tt(t, func() { - test, _ := test_() - - test(` - 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'); - - 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'); - - equal(_.size(null), 0, 'handles nulls'); - }); - `) - }) -} |