Angular Unit testing error: Unable to find a matching route for URL segment 'home/advisor'

Currently, I am working on unit testing within my Angular 4.0.0 application. In one of the methods in my component, I am manually routing using the following code:

method(){
....
    this.navigateTo('/home/advisor');
....
}

The navigateTo function is a custom routing method that looks like this:

  public navigateTo(url: string) {
    this.oldUrl = this.router.url;
    this.router.navigate([url], { skipLocationChange: true });
  }

Additionally, there is a routing file with various paths and components defined:

import ...     // Components and dependencies

const homeRoutes: Routes = [
  {
    path: 'home', component: HomeComponent,
    children: [
      // Define each child component and its corresponding path
    ]
  },
];

@NgModule({
  imports: [
    CommonModule,
    RouterModule.forChild(homeRoutes)
  ],
  exports: [
    RouterModule
  ],
  declarations: []
})
export class HomeRoutingModule { }

Despite the application working fine, the test throws an error saying:

Failed: Uncaught (in promise): Error: Cannot match any routes. URL Segment: 'home/advisor' Error: Cannot match any routes. URL Segment: 'home/advisor'

It appears that there might be some missing configuration causing this issue.

Any suggestions or insights on how to resolve this?

Answer №1

To implement RouterTestingModule.withRoutes, you can use the following code snippet:

beforeEach(async(() => {
  TestBed.configureTestingModule({
    imports: [
      RouterTestingModule.withRoutes(
        [{path: 'yourpath', component: BlankComponent}]
      )
    ],
    declarations: [
      BlankComponent,
      YourComponentUnderTest
    ]
  })
  .compileComponents()
}))

Answer №2

After leaving a comment:

When testing your router, it is essential to use the testing module instead of the actual one.

Begin by

import { RouterTestingModule } from '@angular/router/testing';

Then, in your TestBed

imports: [RouterTestingModule]

You should now be able to execute unit tests on your component

UPDATE

To create a spy on your routing functionality, you need to

spyOn(component.router, 'navigate').and.returnValue(true);

Your expectation should resemble

expect(component.router.navigate).toHaveBeenCalledWith('/home/advisor');

Answer №3

Encountered the same problem as well. The solution provided in the accepted answer didn't work for me because I mistakenly included HttpClientModule instead of HttpClientTestingModule in my Spec files. To prevent the "Can not match any routes" error, make sure to include RouterTestingModule and HttpClientTestingModule wherever it is required.

beforeEach(async(() => {
    TestBed.configureTestingModule({
        imports: [
            RouterTestingModule,
            HttpClientTestingModule,
        ],
        declarations: [
            AppComponent
        ],
    }).compileComponents();
}));

Answer №4

When I run my unit test case in the console, I encounter an error related to SubRoute. Fortunately, I was able to resolve this issue by implementing the following approach within my unit test.

class MockRouter {
        url = '';
        navigate(commands: any[], extras?: any) { }
      }

beforeEach(async(() => {
    TestBed.configureTestingModule({
                    providers:[{ provide: Router, useClass: MockRouter }]
}).compileComponents();
}));

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