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Improve Object.prototype.isPrototypeOf coverage (#2446)

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This commit is contained in:
Alexey Shvayka 2019-12-19 02:33:31 +00:00 committed by Leo Balter
parent 0ea69c7864
commit 19fd4bea79
18 changed files with 204 additions and 221 deletions
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59
test/built-ins/Object/prototype/isPrototypeOf/S15.2.4.6_A1.js vendored
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@ -1,59 +0,0 @@
// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: |
When the isPrototypeOf method is called with argument V and when O and
V refer to the same object or to objects joined to each other, return true
es5id: 15.2.4.6_A1
description: Creating two objects with the same prototype
---*/
function USER_FACTORY(name) {
this.name = name;
this.getName = function() {
return name;
};
}
function FORCEDUSER_FACTORY(name, grade) {
this.name = name;
this.grade = grade;
this.getGrade = function() {
return grade;
};
}
var proto = new USER_FACTORY("noname");
FORCEDUSER_FACTORY.prototype = proto;
var luke = new FORCEDUSER_FACTORY("Luke Skywalker", 12);
//////
// CHECK#1
assert.sameValue(
proto.isPrototypeOf(luke),
true,
'#1: native ECMAScript objects have an internal property called [[Prototype]].'
);
//
/////////
//////
// CHECK#2
assert.sameValue(
USER_FACTORY.prototype.isPrototypeOf(luke),
true,
'#2: native ECMAScript objects have an internal property called [[Prototype]].'
);
//
/////////
//////
// CHECK#3
if (Number.isPrototypeOf(luke)) {
$ERROR('#2: Native ECMAScript objects have an internal property called [[Prototype]].');
}
//
/////////

29
test/built-ins/Object/prototype/isPrototypeOf/S15.2.4.6_A10.js vendored
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// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: |
The Object.prototype.isPrototypeOf.length property has the attribute
ReadOnly
es5id: 15.2.4.6_A10
description: >
Checking if varying the Object.prototype.isPrototypeOf.length
property fails
includes: [propertyHelper.js]
---*/
//CHECK#1
if (!(Object.prototype.isPrototypeOf.hasOwnProperty('length'))) {
$ERROR('#1: the Object.prototype.isPrototypeOf has length property');
}
var obj = Object.prototype.isPrototypeOf.length;
verifyNotWritable(Object.prototype.isPrototypeOf, "length", null, function() {
return "shifted";
});
//CHECK#2
if (Object.prototype.isPrototypeOf.length !== obj) {
$ERROR('#2: the Object.prototype.isPrototypeOf length property has the attributes ReadOnly');
}

18
test/built-ins/Object/prototype/isPrototypeOf/S15.2.4.6_A11.js vendored
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// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: The length property of the hasOwnProperty method is 1
es5id: 15.2.4.6_A11
description: Checking the Object.prototype.hasOwnProperty.length
---*/
//CHECK#1
if (!(Object.prototype.isPrototypeOf.hasOwnProperty("length"))) {
$ERROR('#1: the Object.prototype.isPrototypeOf has length property');
}
//CHECK#2
if (Object.prototype.isPrototypeOf.length !== 1) {
$ERROR('#2: The length property of the toObject method is 1');
}

13
test/built-ins/Object/prototype/isPrototypeOf/S15.2.4.6_A12.js vendored
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@ -1,13 +0,0 @@
// Copyright 2011 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.4.6_A12
description: >
Let O be the result of calling ToObject passing the this value as
the argument.
---*/
assert.throws(TypeError, function() {
Object.prototype.isPrototypeOf.call(undefined, {});
});

13
test/built-ins/Object/prototype/isPrototypeOf/S15.2.4.6_A13.js vendored
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@ -1,13 +0,0 @@
// Copyright 2011 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.4.6_A13
description: >
Let O be the result of calling ToObject passing the this value as
the argument.
---*/
assert.throws(TypeError, function() {
Object.prototype.isPrototypeOf.call(null, {});
});

16
test/built-ins/Object/prototype/isPrototypeOf/S15.2.4.6_A6.js vendored
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@ -1,16 +0,0 @@
// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: Object.prototype.isPrototypeOf has not prototype property
es5id: 15.2.4.6_A6
description: >
Checking if obtaining the prototype property of
Object.prototype.isPrototypeOf fails
---*/
//CHECK#1
if (Object.prototype.isPrototypeOf.prototype !== undefined) {
$ERROR('#1: Object.prototype.isPrototypeOf has not prototype property' + Object.prototype.isPrototypeOf.prototype);
}
//

14
test/built-ins/Object/prototype/isPrototypeOf/S15.2.4.6_A7.js vendored
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// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: Object.prototype.isPrototypeOf can't be used as a constructor
es5id: 15.2.4.6_A7
description: Checking if creating new "Object.prototype.isPrototypeOf" fails
---*/
var FACTORY = Object.prototype.isPrototypeOf;
assert.throws(TypeError, function() {
new FACTORY;
});

30
test/built-ins/Object/prototype/isPrototypeOf/S15.2.4.6_A8.js vendored
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// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: |
The Object.prototype.isPrototypeOf.length property has the attribute
DontEnum
es5id: 15.2.4.6_A8
description: >
Checknig if enumerating the Object.prototype.isPrototypeOf.length
property fails
---*/
//CHECK#0
if (!(Object.prototype.isPrototypeOf.hasOwnProperty('length'))) {
$ERROR('#0: the Object.prototype.isPrototypeOf has length property');
}
// CHECK#1
if (Object.prototype.isPrototypeOf.propertyIsEnumerable('length')) {
$ERROR('#1: the Object.prototype.isPrototypeOf.length property has the attributes DontEnum');
}
// CHECK#2
for (var p in Object.prototype.isPrototypeOf) {
if (p === "length")
$ERROR('#2: the Object.prototype.isPrototypeOf.length property has the attributes DontEnum');
}
//

23
test/built-ins/Object/prototype/isPrototypeOf/S15.2.4.6_A9.js vendored
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// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: |
The Object.prototype.isPrototypeOf.length property does not have the
attribute DontDelete
es5id: 15.2.4.6_A9
description: >
Checking deleting the Object.prototype.isPrototypeOf.length
property fails
---*/
//CHECK#0
if (!(Object.prototype.isPrototypeOf.hasOwnProperty('length'))) {
$ERROR('#0: the Object.prototype.isPrototypeOf has length property');
}
//CHECK#1
if (!delete Object.prototype.isPrototypeOf.length) {
$ERROR('#1: The Object.prototype.isPrototypeOf.length property does not have the attributes DontDelete');
}
//

29
test/built-ins/Object/prototype/isPrototypeOf/arg-is-proxy.js vendored Normal file
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// Copyright (C) 2019 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.prototype.isprototypeof
description: >
If V is a Proxy object, only its "getPrototypeOf" trap gets invoked.
info: |
Object.prototype.isPrototypeOf ( V )
...
3. Repeat,
a. Set V to ? V.[[GetPrototypeOf]]().
b. If V is null, return false.
c. If SameValue(O, V) is true, return true.
includes: [proxyTrapsHelper.js]
features: [Proxy]
---*/
var proxyProto = [];
var handler = allowProxyTraps({
getPrototypeOf: function(_target) {
return proxyProto;
},
});
var proxy = new Proxy({}, handler);
assert.sameValue(proxyProto.isPrototypeOf(proxy), true);

18
test/built-ins/Object/prototype/isPrototypeOf/builtin.js vendored Normal file
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// Copyright (C) 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.prototype.isprototypeof
description: >
Tests that Object.prototype.isPrototypeOf meets the requirements
for built-in objects defined by the introduction of chapter 17 of
the ECMAScript Language Specification.
includes: [isConstructor.js]
features: [Reflect.construct]
---*/
assert(Object.isExtensible(Object.prototype.isPrototypeOf));
assert.sameValue(Object.prototype.toString.call(Object.prototype.isPrototypeOf), "[object Function]");
assert.sameValue(Object.getPrototypeOf(Object.prototype.isPrototypeOf), Function.prototype);
assert.sameValue(Object.prototype.isPrototypeOf.hasOwnProperty("prototype"), false);
assert.sameValue(isConstructor(Object.prototype.isPrototypeOf), false);

24
test/built-ins/Object/prototype/isPrototypeOf/length.js vendored Normal file
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// Copyright (C) 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.prototype.isprototypeof
description: >
Object.prototype.isPrototypeOf.length is 1.
info: |
Object.prototype.isPrototypeOf ( V )
ECMAScript Standard Built-in Objects
Unless otherwise specified, the length property of a built-in Function
object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
[[Configurable]]: true }.
includes: [propertyHelper.js]
---*/
verifyProperty(Object.prototype.isPrototypeOf, "length", {
value: 1,
writable: false,
enumerable: false,
configurable: true,
});

13
test/built-ins/Object/prototype/isPrototypeOf/name.js vendored
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@ -2,7 +2,7 @@
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 19.1.3.3
esid: sec-object.prototype.isprototypeof
description: >
Object.prototype.isPrototypeOf.name is "isPrototypeOf".
info: |
@ -19,8 +19,9 @@ info: |
includes: [propertyHelper.js]
---*/
assert.sameValue(Object.prototype.isPrototypeOf.name, "isPrototypeOf");
verifyNotEnumerable(Object.prototype.isPrototypeOf, "name");
verifyNotWritable(Object.prototype.isPrototypeOf, "name");
verifyConfigurable(Object.prototype.isPrototypeOf, "name");
verifyProperty(Object.prototype.isPrototypeOf, "name", {
value: "isPrototypeOf",
writable: false,
enumerable: false,
configurable: true,
});

19
test/built-ins/Object/prototype/isPrototypeOf/null-this-and-object-arg-throws.js vendored Normal file
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// Copyright (C) 2011 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.prototype.isprototypeof
description: >
The ordering of steps 1 and 2 preserves the behaviour specified by previous
editions of this specification for the case where V is not an object and
the this value is undefined or null.
info: |
Object.prototype.isPrototypeOf ( V )
1. If Type(V) is not Object, return false.
2. Let O be ? ToObject(this value).
---*/
assert.throws(TypeError, function() {
Object.prototype.isPrototypeOf.call(null, function() {});
});

23
test/built-ins/Object/prototype/isPrototypeOf/null-this-and-primitive-arg-returns-false.js vendored Normal file
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// Copyright (C) 2019 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.prototype.isprototypeof
description: >
The ordering of steps 1 and 2 preserves the behaviour specified by previous
editions of this specification for the case where V is not an object and
the this value is undefined or null.
info: |
Object.prototype.isPrototypeOf ( V )
1. If Type(V) is not Object, return false.
2. Let O be ? ToObject(this value).
features: [Symbol]
---*/
assert.sameValue(Object.prototype.isPrototypeOf.call(null, undefined), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(null, null), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(null, false), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(null, ""), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(null, Symbol()), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(null, 10), false);

42
test/built-ins/Object/prototype/isPrototypeOf/this-value-is-in-prototype-chain-of-arg.js vendored Normal file
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// Copyright (C) 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.prototype.isprototypeof
description: >
Object.prototype.isPrototypeOf returns true if either parameter V
and O refer to the same object or O is in [[Prototype]] chain of V.
info: |
Object.prototype.isPrototypeOf ( V )
...
3. Repeat,
a. Set V to ? V.[[GetPrototypeOf]]().
b. If V is null, return false.
c. If SameValue(O, V) is true, return true.
---*/
function USER_FACTORY(name) {
this.name = name;
this.getName = function() {
return name;
};
}
function FORCEDUSER_FACTORY(name, grade) {
this.name = name;
this.grade = grade;
this.getGrade = function() {
return grade;
};
}
var proto = new USER_FACTORY("noname");
FORCEDUSER_FACTORY.prototype = proto;
var luke = new FORCEDUSER_FACTORY("Luke Skywalker", 12);
assert.sameValue(proto.isPrototypeOf(luke), true);
assert.sameValue(USER_FACTORY.prototype.isPrototypeOf(luke), true);
assert.sameValue(Number.isPrototypeOf(luke), false);

19
test/built-ins/Object/prototype/isPrototypeOf/undefined-this-and-object-arg-throws.js vendored Normal file
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// Copyright (C) 2011 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.prototype.isprototypeof
description: >
The ordering of steps 1 and 2 preserves the behaviour specified by previous
editions of this specification for the case where V is not an object and
the this value is undefined or null.
info: |
Object.prototype.isPrototypeOf ( V )
1. If Type(V) is not Object, return false.
2. Let O be ? ToObject(this value).
---*/
assert.throws(TypeError, function() {
Object.prototype.isPrototypeOf.call(undefined, {});
});

23
test/built-ins/Object/prototype/isPrototypeOf/undefined-this-and-primitive-arg-returns-false.js vendored Normal file
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@ -0,0 +1,23 @@
// Copyright (C) 2019 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.prototype.isprototypeof
description: >
The ordering of steps 1 and 2 preserves the behaviour specified by previous
editions of this specification for the case where V is not an object and
the this value is undefined or null.
info: |
Object.prototype.isPrototypeOf ( V )
1. If Type(V) is not Object, return false.
2. Let O be ? ToObject(this value).
features: [Symbol]
---*/
assert.sameValue(Object.prototype.isPrototypeOf.call(undefined, undefined), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(undefined, null), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(undefined, true), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(undefined, "str"), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(undefined, Symbol("desc")), false);
assert.sameValue(Object.prototype.isPrototypeOf.call(undefined, 3.14), false);