Extend coverage for Promise.prototype.catch

This commit is contained in:
Mike Pennisi 2016-06-24 20:15:56 -04:00
parent 12902b29c0
commit 23659d6128
5 changed files with 212 additions and 0 deletions

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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-promise.prototype.catch
es6id: 25.4.5.1
description: >
Promise.prototype.catch called with a non-object-coercible `this` value
info: |
1. Let promise be the this value.
2. Return ? Invoke(promise, "then", «undefined, onRejected»).
7.3.18 Invoke
1. Assert: IsPropertyKey(P) is true.
2. If argumentsList was not passed, let argumentsList be a new empty List.
3. Let func be ? GetV(V, P).
4. Return ? Call(func, V, argumentsList).
7.3.2 GetV
1. Assert: IsPropertyKey(P) is true.
2. Let O be ? ToObject(V).
---*/
assert.throws(TypeError, function() {
Promise.prototype.catch.call(undefined);
}, 'undefined');
assert.throws(TypeError, function() {
Promise.prototype.catch.call(null);
}, 'null');

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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-promise.prototype.catch
es6id: 25.4.5.1
description: >
Promise.prototype.catch called with an object-coercible `this` value
info: |
1. Let promise be the this value.
2. Return ? Invoke(promise, "then", «undefined, onRejected»).
7.3.18 Invoke
1. Assert: IsPropertyKey(P) is true.
2. If argumentsList was not passed, let argumentsList be a new empty List.
3. Let func be ? GetV(V, P).
4. Return ? Call(func, V, argumentsList).
7.3.2 GetV
1. Assert: IsPropertyKey(P) is true.
2. Let O be ? ToObject(V).
features: [Symbol]
---*/
var booleanCount = 0;
Boolean.prototype.then = function() { booleanCount += 1; };
Promise.prototype.catch.call(true);
assert.sameValue(booleanCount, 1, 'boolean');
var numberCount = 0;
Number.prototype.then = function() { numberCount += 1; };
Promise.prototype.catch.call(34);
assert.sameValue(numberCount, 1, 'number');
var stringCount = 0;
String.prototype.then = function() { stringCount += 1; };
Promise.prototype.catch.call('');
assert.sameValue(stringCount, 1, 'string');
var symbolCount = 0;
Symbol.prototype.then = function() { symbolCount += 1; };
Promise.prototype.catch.call(Symbol());
assert.sameValue(symbolCount, 1, 'symbol');

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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-promise.prototype.catch
es6id: 25.4.5.1
description: >
Promise.prototype.catch called with a `this` value that does not define a
callable `this` property
info: |
1. Let promise be the this value.
2. Return ? Invoke(promise, "then", «undefined, onRejected»).
7.3.18 Invoke
1. Assert: IsPropertyKey(P) is true.
2. If argumentsList was not passed, let argumentsList be a new empty List.
3. Let func be ? GetV(V, P).
4. Return ? Call(func, V, argumentsList).
7.3.2 GetV
1. Assert: IsPropertyKey(P) is true.
2. Let O be ? ToObject(V).
3. Return ? O.[[Get]](P, V).
7.3.12 Call (F, V [ , argumentsList ])
1. If argumentsList was not passed, let argumentsList be a new empty List.
2. If IsCallable(F) is false, throw a TypeError exception.
3. Return ? F.[[Call]](V, argumentsList).
features: [Symbol]
---*/
var symbol = Symbol();
assert.throws(TypeError, function() {
Promise.prototype.catch.call({});
}, 'undefined');
assert.throws(TypeError, function() {
Promise.prototype.catch.call({ then: null });
}, 'null');
assert.throws(TypeError, function() {
Promise.prototype.catch.call({ then: 1 });
}, 'number');
assert.throws(TypeError, function() {
Promise.prototype.catch.call({ then: '' });
}, 'string');
assert.throws(TypeError, function() {
Promise.prototype.catch.call({ then: true });
}, 'boolean');
assert.throws(TypeError, function() {
Promise.prototype.catch.call({ then: symbol });
}, 'symbol');
assert.throws(TypeError, function() {
Promise.prototype.catch.call({ then: {} });
}, 'ordinary object');

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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-promise.prototype.catch
es6id: 25.4.5.1
description: >
Promise.prototype.catch called with a `this` value whose `then` property is
an accessor property that returns an abrupt completion
info: |
1. Let promise be the this value.
2. Return ? Invoke(promise, "then", «undefined, onRejected»).
7.3.18 Invoke
1. Assert: IsPropertyKey(P) is true.
2. If argumentsList was not passed, let argumentsList be a new empty List.
3. Let func be ? GetV(V, P).
7.3.2 GetV
1. Assert: IsPropertyKey(P) is true.
2. Let O be ? ToObject(V).
3. Return ? O.[[Get]](P, V).
---*/
var poisonedThen = Object.defineProperty({}, 'then', {
get: function() {
throw new Test262Error();
}
});
assert.throws(Test262Error, function() {
Promise.prototype.catch.call(poisonedThen);
});

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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-promise.prototype.catch
es6id: 25.4.5.1
description: >
Promise.prototype.catch called with a `this` value that defines a `then`
method which returns an abrupt completion.
info: |
1. Let promise be the this value.
2. Return ? Invoke(promise, "then", «undefined, onRejected»).
7.3.18 Invoke
1. Assert: IsPropertyKey(P) is true.
2. If argumentsList was not passed, let argumentsList be a new empty List.
3. Let func be ? GetV(V, P).
4. Return ? Call(func, V, argumentsList).
7.3.2 GetV
1. Assert: IsPropertyKey(P) is true.
2. Let O be ? ToObject(V).
3. Return ? O.[[Get]](P, V).
7.3.12 Call (F, V [ , argumentsList ])
1. If argumentsList was not passed, let argumentsList be a new empty List.
2. If IsCallable(F) is false, throw a TypeError exception.
3. Return ? F.[[Call]](V, argumentsList).
---*/
var thrower = {
then: function() {
throw new Test262Error();
}
};
assert.throws(Test262Error, function() {
Promise.prototype.catch.call(thrower);
});