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Extend coverage for PromiseReactionJob 

Add tests that assert sequential job execution
This commit is contained in:
Mike Pennisi 2015-12-29 12:40:59 -05:00
parent eded6b269b
commit 8e069e918f
5 changed files with 241 additions and 0 deletions
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44
test/built-ins/Promise/prototype/then/rxn-handler-fulfilled-next-abrupt.js vendored Normal file
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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.
/*---
description: Abrupt completions should not preclude additional jobs
es6id: 25.4.2.1
info: >
[...]
7. If handlerResult is an abrupt completion, then
a. Let status be Call(promiseCapability.[[Reject]], undefined,
«handlerResult.[[value]]»).
b. NextJob Completion(status).
8. Let status be Call(promiseCapability.[[Resolve]], undefined,
«handlerResult.[[value]]»).
9. NextJob Completion(status).
---*/
var promise = new Promise(function(resolve) {
resolve();
});
var fulfilledCallCount = 0;
var rejectedCallCount = 0;
promise.then(function() {
fulfilledCallCount += 1;
throw new Error();
}, function() {
rejectedCallCount += 1;
});
promise.then(function() {
if (fulfilledCallCount !== 1) {
$DONE('Expected "onFulfilled" handler to be invoked exactly once.');
return;
}
if (rejectedCallCount !== 0) {
$DONE('Expected "onRejected" handler to not be invoked.');
return;
}
$DONE();
}, function() {
$DONE('This promise should not be rejected.');
});

52
test/built-ins/Promise/prototype/then/rxn-handler-fulfilled-next.js vendored Normal file
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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.
/*---
description: All queued jobs should be executed in series
es6id: 25.4.2.1
info: >
[...]
7. If handlerResult is an abrupt completion, then
a. Let status be Call(promiseCapability.[[Reject]], undefined,
«handlerResult.[[value]]»).
b. NextJob Completion(status).
8. Let status be Call(promiseCapability.[[Resolve]], undefined,
«handlerResult.[[value]]»).
9. NextJob Completion(status).
---*/
var promise = new Promise(function(resolve) {
resolve();
});
var log = '';
promise.then(function() {
log += 'a';
}, function() {
log += 'A';
});
promise.then(function() {
log += 'b';
}, function() {
log += 'B';
});
promise.then(function() {
log += 'c';
}, function() {
log += 'C';
});
promise.then(function() {
if (log !== 'abc') {
$DONE(
'Expected each "onFulfilled" handler to be invoked exactly once in series. ' +
'Expected: abc. Actual: ' + log
);
return;
}
$DONE();
}, function() {
$DONE('This promise should not be rejected.');
});

44
test/built-ins/Promise/prototype/then/rxn-handler-rejected-next-abrupt.js vendored Normal file
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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.
/*---
description: Abrupt completions should not preclude additional jobs
es6id: 25.4.2.1
info: >
[...]
7. If handlerResult is an abrupt completion, then
a. Let status be Call(promiseCapability.[[Reject]], undefined,
«handlerResult.[[value]]»).
b. NextJob Completion(status).
8. Let status be Call(promiseCapability.[[Resolve]], undefined,
«handlerResult.[[value]]»).
9. NextJob Completion(status).
---*/
var promise = new Promise(function(_, reject) {
reject();
});
var fulfilledCallCount = 0;
var rejectedCallCount = 0;
promise.then(function() {
fulfilledCallCount += 1;
}, function() {
rejectedCallCount += 1;
throw new Error();
});
promise.then(function() {
$DONE('This promise should not be fulfilled.');
}, function() {
if (fulfilledCallCount !== 0) {
$DONE('Expected "onFulfilled" handler to not be invoked.');
return;
}
if (rejectedCallCount !== 1) {
$DONE('Expected "onRejected" handler to be invoked exactly once.');
return;
}
$DONE();
});

52
test/built-ins/Promise/prototype/then/rxn-handler-rejected-next.js vendored Normal file
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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.
/*---
description: All queued jobs should be executed in series
es6id: 25.4.2.1
info: >
[...]
7. If handlerResult is an abrupt completion, then
a. Let status be Call(promiseCapability.[[Reject]], undefined,
«handlerResult.[[value]]»).
b. NextJob Completion(status).
8. Let status be Call(promiseCapability.[[Resolve]], undefined,
«handlerResult.[[value]]»).
9. NextJob Completion(status).
---*/
var promise = new Promise(function(_, reject) {
reject();
});
var log = '';
promise.then(function() {
log += 'A';
}, function() {
log += 'a';
});
promise.then(function() {
log += 'B';
}, function() {
log += 'b';
});
promise.then(function() {
log += 'C';
}, function() {
log += 'c';
});
promise.then(function() {
$DONE('This promise should not be fulfilled.');
}, function() {
if (log !== 'abc') {
$DONE(
'Expected each "onFulfilled" handler to be invoked exactly once in series. ' +
'Expected: abc. Actual: ' + log
);
return;
}
$DONE();
});

49
test/built-ins/Promise/prototype/then/rxn-handler-rejected-return-normal.js vendored Normal file
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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.
/*---
description: A normal completion should trigger promise fulfillment
es6id: 25.4.5.3
info: >
[...]
7. Return PerformPromiseThen(promise, onFulfilled, onRejected,
resultCapability).
25.4.5.3.1 PerformPromiseThen
[...]
9. Else if the value of promise's [[PromiseState]] internal slot is
"rejected",
a. Let reason be the value of promise's [[PromiseResult]] internal slot.
b. Perform EnqueueJob("PromiseJobs", PromiseReactionJob,
«rejectReaction, reason»).
25.4.2.1 PromiseReactionJob
[...]
7. If handlerResult is an abrupt completion, then
a. Let status be Call(promiseCapability.[[Reject]], undefined,
«handlerResult.[[value]]»).
b. NextJob Completion(status).
8. Let status be Call(promiseCapability.[[Resolve]], undefined,
«handlerResult.[[value]]»).
9. NextJob Completion(status).
---*/
var value = {};
var p1 = new Promise(function(_, reject) {
reject();
});
var p2;
p2 = p1.then(function() {}, function() {
return value;
});
p2.then(function(x) {
if (x !== value) {
$DONE('The `onFulfilled` handler should be invoked with the promise result.');
return;
}
$DONE();
}, function() {
$DONE('The `onRejected` handler should not be invoked.');
});