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Questions tagged [testbed]

A testbed is a platform for experimentation of large development projects. Testbeds allow for rigorous, transparent, and replicable testing of new technologies or code in an isolated environment.

157 questions
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Angular 9 i18n migration - failing tests

I am upgrading from Angular 8.0 to Angular 9.1.1. With a little bit of work, everything builds and runs fine. I ran into the localization issue https://angular.io/guide/migration-localize and followed these instructions - this allowed my project…
nbpeth
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Ionic 4: Creating mock storage

I am trying to use Testbed in a new Angular 7 / Ionic 4 app but cannot run any tests because my components depend on an Ionic native plugin, storage. app.component.spec.ts import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core'; import {TestBed,…
Jeremy Thomas
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Async beforeEach finished before/after each test unit(it)

I am using Angular 6 and I have one concern regarding every test which I have seen so far. Here's a simple test of simple component which is generated by cli. describe('CompComponent', () => { let component: CompComponent; let fixture:…
Brk
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angular 5 testing - configure testbed globally

I want to import certain modules for all testing suits such as ngrx Store, ngx translate or httpClientModule in an angular-cli@1.50 project with angular 5. in the generated test.ts I have added a test.configureTestingModule const testBed: TestBed =…
Han Che
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2 answers

Angular2 @Viewchild unit test

I have a component like this: export class ParentComponent implements OnInit, OnDestroy { @ViewChild(ChildComponent) childComponent: ChildComponent; } which is using the childComponent to make a call, let's say like…
Ankur Mukherjee
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Angular 2 TestBed with mocks

I am trying to test a component which uses another service. And I want to isolate the component by providing a mock for the service. Before RC5 I can simply use addproviders which is now deprecated and will be removed by the next RC. Instead I have…
LonsomeHell
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1 answer

Override component in another module in Angular TestBed

I'm writing TestBed unit tests. There is a certain component, which is a child of the component-under-test. That child component causes errors while the test is running. That child component is not relevant to the test itself; it's just causing…
Ania
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angular Testbed overrideModule not working

When using the following configuration for a test fixture, I get complaints that the tag cannot be found. Substituting the MockSelectionToolComponent directly in AppModule works fine, so must be something else... // Add the imported module to the…
jenson-button-event
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Testing with TestBed: no Provider for StatusBar error

I've read the article about testing Ionic2 projects with TestBed and I've got the trouble when I'm trying to repeat example from article in my environment. When I try to start tests on Step 3 I have the error "No provider for StatusBar". Probably…
NobbyNobbs
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error with angular2 testing component with Testbed

trying to learn this testing utility TestBed in angular-2 with a simple example and have hit my first blocker. google or SO search didn't yield any matching example, so, I have a very basic component header as below - import { Component } from…
tiwarib
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OverrideComponent with TestBed

I have MainComponent that uses ChildComponentA as a @ViewChild. MainComponent is calling a method on ChildComponentA. I want to write an unit test case mocking ChildComponentA. How can I do this using TestBed (in Angular 2 RC5)? Before I used to use…
Kashyap
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2 answers

Are unittest base classes good practice? (python/webapp2)

I'm rather new to unit-testing and am trying to feel out the best practices for the thing. I've seen several questions on here relating to unit-test inheriting a base class that itself contains several tests, for example: class…
Quentin Donnellan
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Unit Testing : No provider for "InterceptableStoreFactory" even if added to "providers"

I'm working on unit tests within my Angular app , i'm using TestBed approach , I'm testing components , so each spec file looks like this import... describe('AppComponent', () => { // Importing dependecies beforeEach(async(() => { …
firasKoubaa
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Angular TestBed fails with Webpack, Karma/Jasmine

I tried to use Angular TestBed as described on angular.io website to test a simple component, but I get errors like: TypeError: undefined is not an object (evaluating 'ProxyZoneSpec.assertPresent') and 404 as it cannot load the external component…
Francesco
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Using Angular2 TestBed to Mock a service with a non-concrete class interface parameter

I have a component that I am trying to setup and test using TestBed. This component contains one class that has a parameter in the constructor that is an interface, not a concrete class. This interface is satisfied by whatever class I choose to use…
Kim Gentes
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