angular2
Version:
Angular 2 - a web framework for modern web apps
88 lines • 8.98 kB
JavaScript
;"use strict";
var exceptions_1 = require('angular2/src/facade/exceptions');
var _FakeAsyncTestZoneSpecType = Zone['FakeAsyncTestZoneSpec'];
/**
* Wraps a function to be executed in the fakeAsync zone:
* - microtasks are manually executed by calling `flushMicrotasks()`,
* - timers are synchronous, `tick()` simulates the asynchronous passage of time.
*
* If there are any pending timers at the end of the function, an exception will be thrown.
*
* Can be used to wrap inject() calls.
*
* ## Example
*
* {@example testing/ts/fake_async.ts region='basic'}
*
* @param fn
* @returns {Function} The function wrapped to be executed in the fakeAsync zone
*/
function fakeAsync(fn) {
if (Zone.current.get('FakeAsyncTestZoneSpec') != null) {
throw new exceptions_1.BaseException('fakeAsync() calls can not be nested');
}
var fakeAsyncTestZoneSpec = new _FakeAsyncTestZoneSpecType();
var fakeAsyncZone = Zone.current.fork(fakeAsyncTestZoneSpec);
return function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i - 0] = arguments[_i];
}
var res = fakeAsyncZone.run(function () {
var res = fn.apply(void 0, args);
flushMicrotasks();
return res;
});
if (fakeAsyncTestZoneSpec.pendingPeriodicTimers.length > 0) {
throw new exceptions_1.BaseException((fakeAsyncTestZoneSpec.pendingPeriodicTimers.length + " ") +
"periodic timer(s) still in the queue.");
}
if (fakeAsyncTestZoneSpec.pendingTimers.length > 0) {
throw new exceptions_1.BaseException(fakeAsyncTestZoneSpec.pendingTimers.length + " timer(s) still in the queue.");
}
return res;
};
}
exports.fakeAsync = fakeAsync;
function _getFakeAsyncZoneSpec() {
var zoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
if (zoneSpec == null) {
throw new Error('The code should be running in the fakeAsync zone to call this function');
}
return zoneSpec;
}
/**
* Clear the queue of pending timers and microtasks.
* Tests no longer need to call this explicitly.
*
* @deprecated
*/
function clearPendingTimers() {
// Do nothing.
}
exports.clearPendingTimers = clearPendingTimers;
/**
* Simulates the asynchronous passage of time for the timers in the fakeAsync zone.
*
* The microtasks queue is drained at the very start of this function and after any timer callback
* has been executed.
*
* ## Example
*
* {@example testing/ts/fake_async.ts region='basic'}
*
* @param {number} millis Number of millisecond, defaults to 0
*/
function tick(millis) {
if (millis === void 0) { millis = 0; }
_getFakeAsyncZoneSpec().tick(millis);
}
exports.tick = tick;
/**
* Flush any pending microtasks.
*/
function flushMicrotasks() {
_getFakeAsyncZoneSpec().flushMicrotasks();
}
exports.flushMicrotasks = flushMicrotasks;
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