/
analytics.service.spec.ts
92 lines (78 loc) 路 2.69 KB
/
analytics.service.spec.ts
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/*!
* @license
* Copyright Google LLC 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.dev/license
*/
import {Injector} from '@angular/core';
import {ENVIRONMENT, WINDOW, LOCAL_STORAGE} from '@angular/docs';
import {AnalyticsService} from './analytics.service';
import {MockLocalStorage} from '@angular/docs/testing';
describe('AnalyticsService', () => {
let service: AnalyticsService;
let injector: Injector;
let gtagSpy: jasmine.Spy;
let gtagAppendNodeSpy: jasmine.Spy;
let windowOnErrorHandler: (event: ErrorEvent) => void;
let mockWindow: any;
let mockLocalStorage = new MockLocalStorage();
beforeEach(() => {
gtagSpy = jasmine.createSpy('gtag');
gtagAppendNodeSpy = jasmine.createSpy('gtag.js script head attach');
mockWindow = {
name: 'Some name',
document: {
head: {appendChild: gtagAppendNodeSpy},
createElement: (tag: string) => document.createElement(tag),
querySelector: (_gtagIdSelector: string) => null,
},
addEventListener: (_name: string, handler: typeof windowOnErrorHandler) =>
(windowOnErrorHandler = handler),
};
injector = Injector.create({
providers: [
{provide: ENVIRONMENT, useValue: {}},
{provide: AnalyticsService, deps: [WINDOW]},
{provide: WINDOW, useFactory: () => mockWindow, deps: []},
{provide: LOCAL_STORAGE, useValue: mockLocalStorage},
],
});
service = injector.get(AnalyticsService);
// The `gtag` function is attached to the `Window`, so we can spy on it
// after the service has been initialized.
gtagSpy = spyOn(mockWindow, 'gtag');
});
describe('error reporting', () => {
it('should subscribe to window uncaught errors and report them', () => {
spyOn(service, 'reportError');
windowOnErrorHandler(
new ErrorEvent('error', {
error: new Error('Test Error'),
}),
);
expect(service.reportError).toHaveBeenCalledTimes(1);
expect(service.reportError).toHaveBeenCalledWith(
jasmine.stringContaining('Test Error\n'),
true,
);
});
it('should report errors to analytics by dispatching `gtag` and `ga` events', () => {
gtagSpy.calls.reset();
windowOnErrorHandler(
new ErrorEvent('error', {
error: new Error('Test Error'),
}),
);
expect(gtagSpy).toHaveBeenCalledTimes(1);
expect(gtagSpy).toHaveBeenCalledWith(
'event',
'exception',
jasmine.objectContaining({
description: jasmine.stringContaining('Test Error\n'),
fatal: true,
}),
);
});
});
});