async-test.js
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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory() :
typeof define === 'function' && define.amd ? define(factory) :
(factory());
}(this, (function () { 'use strict';
/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
var AsyncTestZoneSpec = (function () {
function AsyncTestZoneSpec(finishCallback, failCallback, namePrefix) {
this._pendingMicroTasks = false;
this._pendingMacroTasks = false;
this._alreadyErrored = false;
this.runZone = Zone.current;
this._finishCallback = finishCallback;
this._failCallback = failCallback;
this.name = 'asyncTestZone for ' + namePrefix;
}
AsyncTestZoneSpec.prototype._finishCallbackIfDone = function () {
var _this = this;
if (!(this._pendingMicroTasks || this._pendingMacroTasks)) {
// We do this because we would like to catch unhandled rejected promises.
this.runZone.run(function () {
setTimeout(function () {
if (!_this._alreadyErrored && !(_this._pendingMicroTasks || _this._pendingMacroTasks)) {
_this._finishCallback();
}
}, 0);
});
}
};
// Note - we need to use onInvoke at the moment to call finish when a test is
// fully synchronous. TODO(juliemr): remove this when the logic for
// onHasTask changes and it calls whenever the task queues are dirty.
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.onHandleError = function (parentZoneDelegate, currentZone, targetZone, error) {
// Let the parent try to handle the error.
var result = parentZoneDelegate.handleError(targetZone, error);
if (result) {
this._failCallback(error);
this._alreadyErrored = true;
}
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.');
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._pendingMacroTasks = hasTaskState.macroTask;
this._finishCallbackIfDone();
}
};
return AsyncTestZoneSpec;
}());
// Export the class so that new instances can be created with proper
// constructor params.
Zone['AsyncTestZoneSpec'] = AsyncTestZoneSpec;
})));