Map.prototype.keys

test/built-ins/Map/prototype/keys/does-not-have-mapdata-internal-slot-set.js

@@ -0,0 +1,29 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.3.8
+description: >
+  Throws a TypeError if `this` is a Set object.
+info: >
+  Map.prototype.keys ()
+
+  1. Let M be the this value.
+  2. Return CreateMapIterator(M, "key").
+
+  23.1.5.1 CreateMapIterator Abstract Operation
+
+  ...
+  2. If map does not have a [[MapData]] internal slot, throw a TypeError
+  exception.
+  ...
+features: [Set]
+---*/
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call(new Set());
+});
+
+assert.throws(TypeError, function() {
+  var m = new Map();
+  m.keys.call(new Set());
+});

test/built-ins/Map/prototype/keys/does-not-have-mapdata-internal-slot-weakmap.js

@@ -0,0 +1,29 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.3.8
+description: >
+  Throws a TypeError if `this` is a WeakMap object.
+info: >
+  Map.prototype.keys ()
+
+  1. Let M be the this value.
+  2. Return CreateMapIterator(M, "key").
+
+  23.1.5.1 CreateMapIterator Abstract Operation
+
+  ...
+  2. If map does not have a [[MapData]] internal slot, throw a TypeError
+  exception.
+  ...
+features: [WeakMap]
+---*/
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call(new WeakMap());
+});
+
+assert.throws(TypeError, function() {
+  var m = new Map();
+  m.keys.call(new WeakMap());
+});

test/built-ins/Map/prototype/keys/does-not-have-mapdata-internal-slot.js

@@ -0,0 +1,38 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.3.8
+description: >
+  Throws a TypeError if `this` object does not have a [[MapData]] internal slot.
+info: >
+  Map.prototype.keys ()
+
+  1. Let M be the this value.
+  2. Return CreateMapIterator(M, "key").
+
+  23.1.5.1 CreateMapIterator Abstract Operation
+
+  ...
+  2. If map does not have a [[MapData]] internal slot, throw a TypeError
+  exception.
+  ...
+
+---*/
+
+var m = new Map();
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call([]);
+});
+
+assert.throws(TypeError, function() {
+  m.keys.call([]);
+});
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call({});
+});
+
+assert.throws(TypeError, function() {
+  m.keys.call({});
+});

test/built-ins/Map/prototype/keys/keys.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.3.8
+description: >
+  Property type and descriptor.
+info: >
+  Map.prototype.keys ()
+
+  17 ECMAScript Standard Built-in Objects
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(
+  typeof Map.prototype.keys,
+  'function',
+  '`typeof Map.prototype.keys` is `function`'
+);
+
+verifyNotEnumerable(Map.prototype, 'keys');
+verifyWritable(Map.prototype, 'keys');
+verifyConfigurable(Map.prototype, 'keys');

test/built-ins/Map/prototype/keys/length.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.3.8
+description: >
+  Map.prototype.keys.length value and descriptor.
+info: >
+  Map.prototype.keys ()
+
+  17 ECMAScript Standard Built-in Objects
+
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(
+  Map.prototype.keys.length, 0,
+  'The value of `Map.prototype.keys.length` is `0`'
+);
+
+verifyNotEnumerable(Map.prototype.keys, 'length');
+verifyNotWritable(Map.prototype.keys, 'length');
+verifyConfigurable(Map.prototype.keys, 'length');

test/built-ins/Map/prototype/keys/name.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.3.8
+description: >
+  Map.prototype.keys.name value and descriptor.
+info: >
+  Map.prototype.keys ()
+
+  17 ECMAScript Standard Built-in Objects
+
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(
+  Map.prototype.keys.name, 'keys',
+  'The value of `Map.prototype.keys.name` is `"keys"`'
+);
+
+verifyNotEnumerable(Map.prototype.keys, 'name');
+verifyNotWritable(Map.prototype.keys, 'name');
+verifyConfigurable(Map.prototype.keys, 'name');

test/built-ins/Map/prototype/keys/returns-iterator-empty.js

@@ -0,0 +1,27 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.3.8
+description: >
+  Returns an iterator on an empty Map object.
+info: >
+  Map.prototype.keys ()
+
+  ...
+  2. Return CreateMapIterator(M, "key").
+
+  23.1.5.1 CreateMapIterator Abstract Operation
+
+  ...
+  7. Return iterator.
+---*/
+
+var map = new Map();
+var iterator = map.keys();
+var result = iterator.next();
+
+assert.sameValue(
+  result.value, undefined,
+  'The value of `result.value` is `undefined`'
+);
+assert.sameValue(result.done, true, 'The value of `result.done` is `true`');

test/built-ins/Map/prototype/keys/returns-iterator.js

@@ -0,0 +1,50 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.3.8
+description: >
+  Returns an iterator.
+info: >
+  Map.prototype.keys ( )
+
+  ...
+  2. Return CreateMapIterator(M, "key").
+
+  23.1.5.1 CreateMapIterator Abstract Operation
+
+  ...
+  7. Return iterator.
+---*/
+
+var obj = {};
+var map = new Map();
+map.set('foo', 1);
+map.set(obj, 2);
+map.set(map, 3);
+
+var iterator = map.keys();
+var result;
+
+result = iterator.next();
+assert.sameValue(result.value, 'foo', 'First result `value` ("key")');
+assert.sameValue(result.done, false, 'First result `done` flag');
+
+result = iterator.next();
+assert.sameValue(result.value, obj, 'Second result `value` ("key")');
+assert.sameValue(result.done, false, 'Second result `done` flag');
+
+result = iterator.next();
+assert.sameValue(result.value, map, 'Third result `value` ("key")');
+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');
+
+result = iterator.next();
+assert.sameValue(
+  result.value, undefined, 'Exhausted result `value` (repeated request)'
+);
+assert.sameValue(
+  result.done, true, 'Exhausted result `done` flag (repeated request)'
+);

test/built-ins/Map/prototype/keys/this-not-object-throw.js

@@ -0,0 +1,47 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.3.8
+description: >
+  Throws a TypeError if `this` is not an Object.
+info: >
+  Map.prototype.keys ()
+
+  ...
+  2. Return CreateMapIterator(M, "key").
+
+  23.1.5.1 CreateMapIterator Abstract Operation
+
+  1. If Type(map) is not Object, throw a TypeError exception.
+  ...
+features: [Symbol]
+---*/
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call(false);
+});
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call(1);
+});
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call('');
+});
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call(undefined);
+});
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call(null);
+});
+
+assert.throws(TypeError, function() {
+  Map.prototype.keys.call(Symbol());
+});
+
+assert.throws(TypeError, function() {
+  var map = new Map();
+  map.keys.call(false);
+});