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-rw-r--r--Godeps/_workspace/src/github.com/robertkrimen/otto/underscore_collections_test.go698
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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
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+++ b/Godeps/_workspace/src/github.com/robertkrimen/otto/underscore_collections_test.go
@@ -0,0 +1,698 @@
+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');
+ });
+ `)
+ })
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-13 05:50:01 +0800