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angular-testing-tools

v1.2.0

Published

A set of tools for better handling tests in Angular

Downloads

143

Readme

angular-testing-tools

A set of tools for better handling tests in Angular

Install

    npm install angular-testing-tools --save-dev
    

Mocking methods

Example usage:

import { SomeComponent } from './some.component';      
import { AuthService } from './auth.service';      
import { mockClass, mockDirective, mockComponent } from 'angular-testing-tools'

beforeEach(() => {
    TestBed.configureTestingModule({
        declarations: [
            SomeComponent,
            mockDirective('app-main-menu'),
            mockComponent('app-table-row', {methods: ['select'], inputs: ['product'], outputs: ['onSelected']})
        ],
        providers: [
            {provide: AuthService, useClass: mockClass(['login', 'logout'])}
        ]
    });
});
    

mockClass(methods: string[])

Creates mocked class which can be used as a service.

   mockClass(['login', 'logout'])
              

mockDirective(selector: string, options: MockDirectiveOptions)

Creates mocked directive.

    mockDirective('app-main-menu')

mockComponent(selector: string, options: MockDirectiveOptions)

Creates mocked component.

    mockComponent('app-table-row', {
        methods: ['select'], 
        inputs: ['product'], 
        outputs: ['onSelected'],
        template: '{{product.name}}'
    })

TestPage

Import TestPage class and create an instance:

    import { SomeComponent } from './some.component';                              
    import { TestPage } from 'angular-testing-tools';
    
    // ..
    
    let testPage;
    beforeEach(() => {
        let testPage = TestPage.create(SomeComponent);
        testPage.detectChanges();
    });
    

TestPage properties

    testPage.componentInstance        
    

TestPage methods

Since TestPage class extends TestElement class, you can use all the TestElement methods on the TestPage instance, eg. testPage.textContent().

TestPage.create(component)

Creates a component's fixture and returns TestPage instance.

    TestPage.create(SomeComponent);
     

detectChanges

Calls detectChanges on created fixture

    testPage.detectChanges();
            

TestElement properties

    testPage.nativeElement
    testPage.classes   
    

TestElement methods

get(cssSelector: string)

Returns descendant of current element by css selector as TestElement instance

    testPage.get('#some-section')
    

getAll(cssSelector: string)

Returns descendants of current element by css selector as TestElement instances

    testPage.getAll('.some-class')        
    

textContent()

Returns text of current element.

testPage.get('#some-section').textContent();

input(value: string)

Inputs value to the current element.

testPage.get('input').input('some value');

click()

Performs native click on current element.

testPage.get('button').click();

trigger(eventName: string, eventObject: any)

Triggers Angular event on current element.

testPage.get('button').trigger('dbclick');

attr(name: string)

Returns given attribute's value of native element.

testPage.get('input').attr('value');