angular-unit-testing | : star2 : Guidelines and patterns for unit testing | Unit Testing library
kandi X-RAY | angular-unit-testing Summary
kandi X-RAY | angular-unit-testing Summary
This guide tries to show a few patterns and guidelines to help us with unit testing Angular applications after setting some minimum configuration. A more readable version was published on Airpair and won the "Best AngularJS post" category of the 2015 Developer Writing Competition. It has been shared more than 600 times on social media. This repository contains also a complimentary example project with 100% test coverage.
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QUESTION
I want to test an Angular Component and replace the contentChild with a Mock. I followed this guide: https://medium.com/angular-in-depth/angular-unit-testing-viewchild-4525e0c7b756 The guide is for a viewChild, but I thought this could also work for a content Child.
My contentChild has a Observable to which the parent subscribe. If I test the code with the real child, it works. If I mock the child, the test doesn't work. I think the child mock, I query in the test to emit a new value, is a different instance, than the one which the parent subscribed to.
My parent:
...ANSWER
Answered 2021-Mar-22 at 08:57You can use a testing library with mocking features like ng-mocks
It provides MockBuilder
and MockComponent
.
Also it has MockInstance
which allows you to mock components methods / properties upfront of their initialization.
I think your case is similar to How to test a ViewChild / ViewChildren of a declaration
Your test might look like:
QUESTION
I create a pipe class which is get-member-ship-level.pipe.ts:
...ANSWER
Answered 2019-Jun-20 at 10:26When you call new GetMemberShipLevelPipe();
you have no arguments in your brackets, however your function getMemberShipLevel(id: number)
needs to take in an ID, When you call GetMemberShipLevelPipe
you have to put a numerical ID in the brackets so that it can be used throughout that function.
QUESTION
reference:
I have refer above blog link and followed step to Automated Angular Unit Testing and publish test Result.
as per blog guideline i have followed below step.
step 1
Installed below packages.
- npm install phantomjs-prebuilt --save-dev
- npm install karma-phantomjs-launcher --save-dev
- npm install karma-junit-reporter --save-dev
step 2
Then i have added some configuration in karma.conf.js
- require('karma-coverage-istanbul-reporter'), // <- Add plugin
- require('karma-junit-reporter'), // <- Add plugin
- browsers: ['Chrome', 'PhantomJS'], // <- Add browser
step 3
Then i added script in package.json
...ANSWER
Answered 2019-Sep-09 at 09:01as of now phantomjs is no longer support now, it is deprecated i have used 'ChromeHeadless' browser instead of 'Phantomjs' then it's worked fine for me.
if any test case is failed also build will be failed. so u can solved all case then it will work.
if anyone get this issue Please make changes as per above it will helpful.
QUESTION
I am learning unit testing for Angular 6 using karma and Jasmine. I have tried a simple unit test of a text present inside
tag. Here's my HTML code:
...ANSWER
Answered 2018-Oct-05 at 07:32Assign your variable 'de
' to fixture's debugElement like this:
QUESTION
I am trying to unit test an Angular Components and templates with Karma Jasmine. I'm using ng-html2js
Testing component controller is achieved but not template
I'm referencing this Git Repository as part of this.The karma-conf file is same as the one in above repo.
Folder structure
...ANSWER
Answered 2017-Apr-20 at 06:57It looks like you have missed the module reference in your spec file:
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