Add tests for Array.prototype.values

test/built-ins/Array/prototype/values/iteration-mutable.js

@@ -0,0 +1,39 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 22.1.3.29
+description: >
+  New items in the array are accessible via iteration until iterator is "done".
+info: >
+  When an item is added to the array after the iterator is created but
+  before the iterator is "done" (as defined by 22.1.5.2.1), the new item's
+  value should be accessible via iteration. When an item is added to the
+  array after the iterator is "done", the new item should not be
+  accessible via iteration.
+---*/
+
+var array = [];
+var iterator = array.values();
+var result;
+
+array.push('a');
+
+result = iterator.next();
+assert.sameValue(result.done, false , 'First result `done` flag');
+assert.sameValue(result.value, 'a', 'First result `value`');
+
+result = iterator.next();
+assert.sameValue(result.done, true, 'Exhausted result `done` flag');
+assert.sameValue(result.value, undefined, 'Exhausted result `value`');
+
+array.push('b');
+
+result = iterator.next();
+assert.sameValue(
+  result.done, true,
+  'Exhausted result `done` flag (after push)'
+);
+assert.sameValue(
+  result.value, undefined,
+  'Exhausted result `value` (after push)'
+);

test/built-ins/Array/prototype/values/iteration.js

@@ -0,0 +1,33 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 22.1.3.29
+description: >
+  The return is a valid iterator with the array's numeric properties.
+info: >
+  22.1.3.29 Array.prototype.values ( )
+
+  1. Let O be ToObject(this value).
+  2. ReturnIfAbrupt(O).
+  3. Return CreateArrayIterator(O, "value").
+---*/
+
+var array = ['a', 'b', 'c'];
+var iterator = array.values();
+var result;
+
+result = iterator.next();
+assert.sameValue(result.value, 'a', 'First result `value`');
+assert.sameValue(result.done, false, 'First result `done` flag');
+
+result = iterator.next();
+assert.sameValue(result.value, 'b', 'Second result `value`');
+assert.sameValue(result.done, false, 'Second result `done` flag');
+
+result = iterator.next();
+assert.sameValue(result.value, 'c', 'Third result `value`');
+assert.sameValue(result.done, false, 'Third result `done` flag');
+
+result = iterator.next();
+assert.sameValue(result.value, undefined, 'Exhausted result `value`');
+assert.sameValue(result.done, true, 'Exhausted result `done` flag');

test/built-ins/Array/prototype/values/returns-iterator-from-object.js

@@ -0,0 +1,25 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 22.1.3.29
+description: >
+  Creates an iterator from a custom object.
+info: >
+  22.1.3.29 Array.prototype.values ( )
+
+  1. Let O be ToObject(this value).
+  2. ReturnIfAbrupt(O).
+  3. Return CreateArrayIterator(O, "value").
+features: [Symbol.iterator]
+---*/
+
+var obj = {
+  length: 2
+};
+var iter = Array.prototype.values.call(obj);
+var ArrayIteratorProto = Object.getPrototypeOf([][Symbol.iterator]());
+
+assert.sameValue(
+  Object.getPrototypeOf(iter), ArrayIteratorProto,
+  'The prototype of [].values() is %ArrayIteratorPrototype%'
+);

test/built-ins/Array/prototype/values/returns-iterator.js

@@ -0,0 +1,30 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 22.1.3.29
+description: >
+  The method should return an Iterator instance.
+info: >
+  22.1.3.29 Array.prototype.values ( )
+
+  1. Let O be ToObject(this value).
+  2. ReturnIfAbrupt(O).
+  3. Return CreateArrayIterator(O, "value").
+
+  22.1.5.1 CreateArrayIterator Abstract Operation
+
+  ...
+  2. Let iterator be ObjectCreate(%ArrayIteratorPrototype%, «‍[[IteratedObject]],
+  [[ArrayIteratorNextIndex]], [[ArrayIterationKind]]»).
+  ...
+  6. Return iterator.
+features: [Symbol.iterator]
+---*/
+
+var ArrayIteratorProto = Object.getPrototypeOf([][Symbol.iterator]());
+var iter = [].values();
+
+assert.sameValue(
+  Object.getPrototypeOf(iter), ArrayIteratorProto,
+  'The prototype of [].values() is %ArrayIteratorPrototype%'
+);