Proxy: defineProperty

test/built-ins/Proxy/defineProperty/call-parameters.js

@@ -0,0 +1,52 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.6
+description: >
+    Trap is called with handler as context and parameters are target, P, and the
+    descriptor object.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    9. Let descObj be FromPropertyDescriptor(Desc).
+    10. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P,
+    descObj»)).
+    ...
+---*/
+
+var _handler, _target, _prop, _desc;
+var target = {};
+var descriptor = {
+    configurable: true,
+    enumerable: true,
+    writable: true,
+    value: 1
+};
+var handler = {
+    defineProperty: function(t, prop, desc) {
+        _handler = this;
+        _target = t;
+        _prop = prop;
+        _desc = desc;
+
+        return true;
+    }
+};
+var p = new Proxy(target, handler);
+
+Object.defineProperty(p, "attr", descriptor);
+
+assert.sameValue(_handler, handler);
+assert.sameValue(_target, target);
+assert.sameValue(_prop, "attr");
+
+assert.sameValue(
+    Object.keys(_desc).length, 4,
+    "descriptor arg has the same amount of keys as given descriptor"
+);
+
+assert(_desc.configurable);
+assert(_desc.writable);
+assert(_desc.enumerable);
+assert.sameValue(_desc.value, 1);

test/built-ins/Proxy/defineProperty/null-handler.js

@@ -0,0 +1,18 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.6
+description: >
+    Throws a TypeError exception if handler is null.
+---*/
+
+var p = Proxy.revocable({}, {});
+
+p.revoke();
+
+assert.throws(TypeError, function() {
+    Object.defineProperty(p.proxy, "foo", {
+        configurable: true,
+        enumerable: true
+    });
+});

test/built-ins/Proxy/defineProperty/return-boolean-and-define-target.js

@@ -0,0 +1,46 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.6
+description: >
+    If a property has a corresponding target object property then applying the
+    Property Descriptor of the property to the target object using
+    [[DefineOwnProperty]] will not throw an exception.
+features: [Reflect]
+includes: [propertyHelper.js]
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+    defineProperty: function(t, prop, desc) {
+        return Object.defineProperty(t, prop, desc);
+    }
+});
+
+var result = Reflect.defineProperty(p, "attr", {
+    configurable: true,
+    enumerable: true,
+    writable: true,
+    value: 1
+});
+
+assert.sameValue(result, true, "result === true");
+
+verifyEqualTo(target, "attr", 1);
+verifyWritable(target, "attr");
+verifyEnumerable(target, "attr");
+verifyConfigurable(target, "attr");
+
+result = Reflect.defineProperty(p, "attr", {
+    configurable: false,
+    enumerable: false,
+    writable: false,
+    value: 2
+});
+
+assert.sameValue(result, true, "result === true");
+
+verifyEqualTo(target, "attr", 2);
+verifyNotWritable(target, "attr");
+verifyNotEnumerable(target, "attr");
+verifyNotConfigurable(target, "attr");

test/built-ins/Proxy/defineProperty/return-is-abrupt.js

@@ -0,0 +1,26 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.6
+description: >
+    Trap return is an abrupt.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    10. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P,
+    descObj»)).
+    11. ReturnIfAbrupt(booleanTrapResult).
+    ...
+includes: [Test262Error.js]
+---*/
+
+var p = new Proxy({}, {
+    defineProperty: function(t, prop, desc) {
+        throw new Test262Error();
+    }
+});
+
+assert.throws(Test262Error, function() {
+    Object.defineProperty(p, "foo", {});
+});

test/built-ins/Proxy/defineProperty/targetdesc-configurable-desc-not-configurable.js

@@ -0,0 +1,35 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.6
+description: >
+    Throw a TypeError exception if Desc is not configurable and target property
+    descriptor is configurable and trap result is true.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    20. Else targetDesc is not undefined,
+        b. If settingConfigFalse is true and targetDesc.[[Configurable]] is
+        true, throw a TypeError exception.
+    ...
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+    defineProperty: function(t, prop, desc) {
+        return true;
+    }
+});
+
+Object.defineProperty(target, "foo", {
+    value: 1,
+    configurable: true
+});
+
+assert.throws(TypeError, function() {
+    Object.defineProperty(p, "foo", {
+        value: 1,
+        configurable: false
+    });
+});

test/built-ins/Proxy/defineProperty/targetdesc-not-compatible-descriptor-not-configurable-target.js

@@ -0,0 +1,35 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.6
+description: >
+    Throw a TypeError exception if Desc and target property descriptor are not
+    compatible and trap result is true.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    20. Else targetDesc is not undefined,
+        a. If IsCompatiblePropertyDescriptor(extensibleTarget, Desc ,
+        targetDesc) is false, throw a TypeError exception.
+    ...
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+    defineProperty: function(t, prop, desc) {
+        return true;
+    }
+});
+
+Object.defineProperty(target, "foo", {
+    value: 1,
+    configurable: false
+});
+
+assert.throws(TypeError, function() {
+    Object.defineProperty(p, "foo", {
+        value: 1,
+        configurable: true
+    });
+});

test/built-ins/Proxy/defineProperty/targetdesc-not-compatible-descriptor.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: 9.5.6
+description: >
+    Throw a TypeError exception if Desc and target property descriptor are not
+    compatible and trap result is true.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    20. Else targetDesc is not undefined,
+        a. If IsCompatiblePropertyDescriptor(extensibleTarget, Desc ,
+        targetDesc) is false, throw a TypeError exception.
+    ...
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+    defineProperty: function(t, prop, desc) {
+        return true;
+    }
+});
+
+Object.defineProperty(target, "foo", {
+    value: 1
+});
+
+assert.throws(TypeError, function() {
+    Object.defineProperty(p, "foo", {
+        value: 2
+    });
+});

test/built-ins/Proxy/defineProperty/targetdesc-undefined-not-configurable-descriptor.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: 9.5.6
+description: >
+    Throw a TypeError exception if Desc is not configurable and target property
+    descriptor is undefined, and trap result is true.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    19. If targetDesc is undefined, then
+        ...
+        b. If settingConfigFalse is true, throw a TypeError exception.
+    ...
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+    defineProperty: function(t, prop, desc) {
+        return true;
+    }
+});
+
+assert.throws(TypeError, function() {
+    Object.defineProperty(p, "foo", {
+        configurable: false
+    });
+});

test/built-ins/Proxy/defineProperty/targetdesc-undefined-target-is-not-extensible.js

@@ -0,0 +1,28 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.6
+description: >
+    Throw a TypeError exception if Desc is not configurable and target is not
+    extensible, and trap result is true.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    19. If targetDesc is undefined, then
+        a. If extensibleTarget is false, throw a TypeError exception.
+    ...
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+    defineProperty: function(t, prop, desc) {
+        return true;
+    }
+});
+
+Object.preventExtensions(target);
+
+assert.throws(TypeError, function() {
+    Object.defineProperty(p, "foo", {});
+});

test/built-ins/Proxy/defineProperty/trap-is-not-callable.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: 9.5.6
+description: >
+    Throw a TypeError exception if trap is not callable.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    6. Let trap be GetMethod(handler, "defineProperty").
+    ...
+        7.3.9 GetMethod (O, P)
+        ...
+        2. Let func be GetV(O, P).
+        5. If IsCallable(func) is false, throw a TypeError exception.
+        ...
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+    defineProperty: {}
+});
+
+assert.throws(TypeError, function() {
+    Object.defineProperty(p, "foo", {
+        value: 1
+    });
+});

test/built-ins/Proxy/defineProperty/trap-is-undefined.js

@@ -0,0 +1,42 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.6
+description: >
+    Return target.[[DefineOwnProperty]](P, Desc) if trap is undefined.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    8. If trap is undefined, then
+        a. Return target.[[DefineOwnProperty]](P, Desc).
+    ...
+includes: [propertyHelper.js]
+---*/
+
+var target = {};
+var p = new Proxy(target, {});
+
+Object.defineProperty(p, "attr", {
+    configurable: true,
+    enumerable: true,
+    writable: true,
+    value: 1
+});
+
+verifyEqualTo(target, "attr", 1);
+verifyWritable(target, "attr");
+verifyEnumerable(target, "attr");
+verifyConfigurable(target, "attr");
+
+Object.defineProperty(p, "attr", {
+    configurable: false,
+    enumerable: false,
+    writable: false,
+    value: 2
+});
+
+verifyEqualTo(target, "attr", 2);
+verifyNotWritable(target, "attr");
+verifyNotEnumerable(target, "attr");
+verifyNotConfigurable(target, "attr");

test/built-ins/Proxy/defineProperty/trap-return-is-false.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: 9.5.6
+description: >
+    Trap returns a boolean. Checking on false values.
+info: >
+    [[DefineOwnProperty]] (P, Desc)
+
+    ...
+    12. If booleanTrapResult is false, return false.
+    ...
+features: [Reflect]
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+    defineProperty: function(t, prop, desc) {
+        return 0;
+    }
+});
+
+assert.sameValue(Reflect.defineProperty(p, "attr", {}), false);
+assert.sameValue(
+    Object.getOwnPropertyDescriptor(target, "attr"),
+    undefined
+);