angular-cn/packages/common/test/location/location_spec.ts

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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
*/
import {CommonModule, Location, LocationStrategy, PathLocationStrategy, PlatformLocation} from '@angular/common';
import {MockPlatformLocation} from '@angular/common/testing';
import {TestBed, inject} from '@angular/core/testing';
const baseUrl = '/base';
describe('Location Class', () => {
describe('stripTrailingSlash', () => {
it('should strip single character slash', () => {
const input = '/';
expect(Location.stripTrailingSlash(input)).toBe('');
});
it('should normalize strip a trailing slash', () => {
const input = baseUrl + '/';
expect(Location.stripTrailingSlash(input)).toBe(baseUrl);
});
it('should ignore query params when stripping a slash', () => {
const input = baseUrl + '/?param=1';
expect(Location.stripTrailingSlash(input)).toBe(baseUrl + '?param=1');
});
it('should not remove slashes inside query params', () => {
const input = baseUrl + '?test/?=3';
expect(Location.stripTrailingSlash(input)).toBe(input);
});
it('should not remove slashes after a pound sign', () => {
const input = baseUrl + '#test/?=3';
expect(Location.stripTrailingSlash(input)).toBe(input);
});
});
describe('location.getState()', () => {
beforeEach(() => {
TestBed.configureTestingModule({
imports: [CommonModule],
providers: [
{provide: LocationStrategy, useClass: PathLocationStrategy},
{provide: PlatformLocation, useFactory: () => { return new MockPlatformLocation(); }},
{provide: Location, useClass: Location, deps: [LocationStrategy, PlatformLocation]},
]
});
});
it('should get the state object', inject([Location], (location: Location) => {
expect(location.getState()).toBe(null);
location.go('/test', '', {foo: 'bar'});
expect(location.getState()).toEqual({foo: 'bar'});
}));
it('should work after using back button', inject([Location], (location: Location) => {
expect(location.getState()).toBe(null);
location.go('/test1', '', {url: 'test1'});
location.go('/test2', '', {url: 'test2'});
expect(location.getState()).toEqual({url: 'test2'});
location.back();
expect(location.getState()).toEqual({url: 'test1'});
}));
});
describe('location.onUrlChange()', () => {
beforeEach(() => {
TestBed.configureTestingModule({
imports: [CommonModule],
providers: [
{provide: LocationStrategy, useClass: PathLocationStrategy},
{provide: PlatformLocation, useFactory: () => { return new MockPlatformLocation(); }},
{provide: Location, useClass: Location, deps: [LocationStrategy, PlatformLocation]},
]
});
});
it('should have onUrlChange method', inject([Location], (location: Location) => {
expect(typeof location.onUrlChange).toBe('function');
}));
it('should add registered functions to urlChangeListeners',
inject([Location], (location: Location) => {
function changeListener(url: string, state: unknown) { return undefined; }
expect((location as any)._urlChangeListeners.length).toBe(0);
location.onUrlChange(changeListener);
expect((location as any)._urlChangeListeners.length).toBe(1);
expect((location as any)._urlChangeListeners[0]).toEqual(changeListener);
}));
});
});