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feat(zonespec): add a spec for asynchronous tests
This spec is constructed with a done callback and a fail callback, and waits until all asynchronous tasks are completed before exiting.
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| @@ -0,0 +1,122 @@ | ||
| /******/ (function(modules) { // webpackBootstrap | ||
| /******/ // The module cache | ||
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| /******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); | ||
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| /******/ // __webpack_public_path__ | ||
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| /******/ // Load entry module and return exports | ||
| /******/ return __webpack_require__(0); | ||
| /******/ }) | ||
| /************************************************************************/ | ||
| /******/ ([ | ||
| /* 0 */ | ||
| /***/ function(module, exports) { | ||
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| (function () { | ||
| var AsyncTestZoneSpec = (function () { | ||
| function AsyncTestZoneSpec(finishCallback, failCallback, namePrefix) { | ||
| this._pendingMicroTasks = false; | ||
| this._pendingMacroTasks = false; | ||
| this._pendingEventTasks = false; | ||
| // ZoneSpec implementation below. | ||
| this.name = 'asyncTestZone'; | ||
| this._finishCallback = finishCallback; | ||
| this._failCallback = failCallback; | ||
| this.name = 'asyncTestZone for ' + namePrefix; | ||
| } | ||
| AsyncTestZoneSpec.prototype._finishCallbackIfDone = function () { | ||
| if (!(this._pendingMicroTasks || this._pendingMacroTasks || this._pendingEventTasks)) { | ||
| this._finishCallback(); | ||
| } | ||
| }; | ||
| AsyncTestZoneSpec.prototype.onInvoke = function (parentZoneDelegate, currentZone, targetZone, delegate, applyThis, applyArgs, source) { | ||
| try { | ||
| return parentZoneDelegate.invoke(targetZone, delegate, applyThis, applyArgs, source); | ||
| } | ||
| finally { | ||
| this._finishCallbackIfDone(); | ||
| } | ||
| }; | ||
| AsyncTestZoneSpec.prototype.onInvokeTask = function (delegate, current, target, task, applyThis, applyArgs) { | ||
| try { | ||
| return delegate.invokeTask(target, task, applyThis, applyArgs); | ||
| } | ||
| finally { | ||
| this._finishCallbackIfDone(); | ||
| } | ||
| }; | ||
| ; | ||
| AsyncTestZoneSpec.prototype.onHandleError = function (parentZoneDelegate, currentZone, targetZone, error) { | ||
| // Let the parent try to handle it. | ||
| var result = parentZoneDelegate.handleError(targetZone, error); | ||
| if (result) { | ||
| console.log(error.message); | ||
| console.log(error.stack); | ||
| this._failCallback(error.message ? error.message : 'unknown error'); | ||
| } | ||
| return false; | ||
| }; | ||
| AsyncTestZoneSpec.prototype.onScheduleTask = function (delegate, currentZone, targetZone, task) { | ||
| if (task.type == 'macroTask' && task.source == 'setInterval') { | ||
| this._failCallback('Cannot use setInterval from within an async zone test.'); | ||
| // TODO(juliemr): any other cleanup we want to handle here? | ||
| return; | ||
| } | ||
| return delegate.scheduleTask(targetZone, task); | ||
| }; | ||
| AsyncTestZoneSpec.prototype.onHasTask = function (delegate, current, target, hasTaskState) { | ||
| delegate.hasTask(target, hasTaskState); | ||
| if (hasTaskState.change == 'microTask') { | ||
| this._pendingMicroTasks = hasTaskState.microTask; | ||
| this._finishCallbackIfDone(); | ||
| } | ||
| else if (hasTaskState.change == 'macroTask') { | ||
| this._pendingMicroTasks = hasTaskState.macroTask; | ||
| this._finishCallbackIfDone(); | ||
| } | ||
| else if (hasTaskState.change == 'eventTask') { | ||
| this._finishCallbackIfDone(); | ||
| } | ||
| }; | ||
| return AsyncTestZoneSpec; | ||
| }()); | ||
| // Export the class so that new instances can be created with proper | ||
| // constructor params. | ||
| Zone['AsyncTestZoneSpec'] = AsyncTestZoneSpec; | ||
| })(); | ||
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| /***/ } | ||
| /******/ ]); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| (function() { | ||
| class AsyncTestZoneSpec implements ZoneSpec { | ||
| _finishCallback: Function; | ||
| _failCallback: Function; | ||
| _pendingMicroTasks: boolean = false; | ||
| _pendingMacroTasks: boolean = false; | ||
| _pendingEventTasks: boolean = false; | ||
| _alreadyErrored = false; | ||
| runZone = Zone.current; | ||
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| constructor(finishCallback: Function, failCallback: Function, namePrefix: string) { | ||
| this._finishCallback = finishCallback; | ||
| this._failCallback = failCallback; | ||
| this.name = 'asyncTestZone for ' + namePrefix; | ||
| } | ||
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| _finishCallbackIfDone() { | ||
| if (!(this._pendingMicroTasks || this._pendingMacroTasks || this._pendingEventTasks)) { | ||
| // We do this because we would like to catch unhandled rejected promises. | ||
| // To do this quickly when there are native promises, we must run using an unwrapped | ||
| // promise implementation. | ||
| var symbol = (<any>Zone).__symbol__; | ||
| var NativePromise: typeof Promise = <any>window[symbol('Promise')]; | ||
| if (NativePromise) { | ||
| NativePromise.resolve(true)[symbol('then')](() => { | ||
| if (!this._alreadyErrored) { | ||
| this.runZone.run(this._finishCallback); | ||
| } | ||
| }); | ||
| } else { | ||
| // For implementations which do not have nativePromise, use setTimeout(0). This is slower, | ||
| // but it also works because Zones will handle errors when rejected promises have no | ||
| // listeners after one macrotask. | ||
| this.runZone.run(() => { | ||
| setTimeout(() => { | ||
| if (!this._alreadyErrored) { | ||
| this._finishCallback(); | ||
| } | ||
| }, 0); | ||
| }); | ||
| } | ||
| } | ||
| } | ||
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| // ZoneSpec implementation below. | ||
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| name: string = 'asyncTestZone'; | ||
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| onInvoke(parentZoneDelegate: ZoneDelegate, currentZone: Zone, targetZone: Zone, | ||
| delegate: Function, applyThis: any, applyArgs: any[], source: string): any { | ||
| try { | ||
| return parentZoneDelegate.invoke(targetZone, delegate, applyThis, applyArgs, source); | ||
| } finally { | ||
| this._finishCallbackIfDone(); | ||
| } | ||
| } | ||
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| onHandleError(parentZoneDelegate: ZoneDelegate, currentZone: Zone, targetZone: Zone, | ||
| error: any): boolean { | ||
| // Let the parent try to handle the error. | ||
| var result = parentZoneDelegate.handleError(targetZone, error); | ||
| if (result) { | ||
| this._failCallback(error.message ? error.message : 'unknown error'); | ||
| this._alreadyErrored = true; | ||
| } | ||
| return false; | ||
| } | ||
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| onScheduleTask(delegate: ZoneDelegate, currentZone: Zone, targetZone: Zone, task: Task): Task { | ||
| if (task.type == 'macroTask' && task.source == 'setInterval') { | ||
| this._failCallback('Cannot use setInterval from within an async zone test.'); | ||
| return; | ||
| } | ||
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| return delegate.scheduleTask(targetZone, task); | ||
| } | ||
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| onHasTask(delegate: ZoneDelegate, current: Zone, target: Zone, hasTaskState: HasTaskState) { | ||
| delegate.hasTask(target, hasTaskState); | ||
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| if (hasTaskState.change == 'microTask') { | ||
| this._pendingMicroTasks = hasTaskState.microTask; | ||
| this._finishCallbackIfDone(); | ||
| } else if (hasTaskState.change == 'macroTask') { | ||
| this._pendingMacroTasks = hasTaskState.macroTask; | ||
| this._finishCallbackIfDone(); | ||
| } else if (hasTaskState.change == 'eventTask') { | ||
| this._finishCallbackIfDone(); | ||
| } | ||
| } | ||
| } | ||
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| // Export the class so that new instances can be created with proper | ||
| // constructor params. | ||
| Zone['AsyncTestZoneSpec'] = AsyncTestZoneSpec; | ||
| })(); |
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