How do I debug karma in Chrome?

How do I run a karma test in Chrome?

To launch Chrome from karma, we need to use karma-chrome-launcher. Run the command npm install karma-chrome-launcher –save to install to the application. Add the karma-chrome-launcher plugin to the plugins list in your karma. conf.

How do I debug karma config?

  1. Open karma.conf.js and perform the following change:
  2. Open a terminal and start karma tests: ng test.
  3. Open app.component.spec.ts and set a break point:
  4. Select “Karma Tests” in the debug menu:
  5. Press F5 to start debugging. VSCode should stop at the breakpoint:


How do I check my karma log?

How to access Angular $log debug messages from within Karma

  1. (function (angular) { angular . module(‘app’) . …
  2. … PhantomJS 1.9. …
  3. var $log; // Inject the $log service beforeEach(inject(function(_$log_){ $log = _$log_; })); // Log debug messages in Karma afterEach(function(){ console. log($log. …
  4. … PhantomJS 1.9. …
  5. afterEach(function(){ // Messages logged using $log. log() console.


How do I debug Jasmine in Chrome?

1 Answer

  1. Open the debug tab.
  2. Add a Chrome configuration, it’ll fill out most the fields for you. …
  3. Set breakpoint(s) in the code you want to debug.
  4. Run your the debug task which will open a chrome window to the specified port.
  5. Run your test command ( ng test ) and refresh the opened Chrome window if necessary.
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How do you debug Karma test cases?

Debugging testslink

  1. Reveal the Karma browser window. …
  2. Click the DEBUG button; it opens a new browser tab and re-runs the tests.
  3. Open the browser’s “Developer Tools” ( Ctrl-Shift-I on Windows; Command-Option-I in macOS).
  4. Pick the “sources” section.
  5. Open the 1st. …
  6. Set a breakpoint in the test.

How do you run Karma test cases?

Running a Karma Test Case for a Single Spec File / Single module

  1. Add the Spec name in the test. ts file under the src folder. ​x. import ‘zone.js/dist/zone-testing’; import { getTestBed } from ‘@angular/core/testing’ …
  2. Run ng test –code-coverage. Now Karma and Jasmine will check only Test-Demo. Spec. ts.

How do I create a karma config file?

Overview. In order to serve you well, Karma needs to know about your project in order to test it and this is done via a configuration file. The easiest way to generate an initial configuration file is by using the karma init command. This page lists all of the available configuration options.

How do I debug a spec file?

spec. ts code for debugging – Stack Overflow.

1 Answer

  1. In a test that you cannot find, add a debugger; statement.
  2. Run ng test.
  3. When Karma is loaded in a new browser window, click the “Debug” button.
  4. Open the developer tools as soon as a new tab is opened in Chrome (reload the tab if you do this late)


How do I debug NG test?

Start debugging

  1. Run ng test –browsers ChromeDebug.
  2. Wait for Chrome browser to start. …
  3. Set the breakpoint in one of your . …
  4. In Visual Studio Code choose Unit tests debug configuration and hit F5 (“Start Debugging” button).
  5. Press Shift+Ctrl+F5 or refresh the Chrome window to rerun the tests and hit the breakpoint.
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How do I use the console log in Jasmine?

  1. Go to your project directory where you have your pom.xml. Run the following command in cmd. …
  2. You will get the localhost URL : localhost:8234 (just an example).
  3. Run this URL in the browser. Now all your test cases gets executed.
  4. Do the Inspect element of this page.


How do I check angular logs?

log(“something”) the log is appearing in the browser inspector console tab.

How do I check my console log in Jasmine?

The Jasmine test looks something like: it(“should test for the function_to_test’s console output”, function(){ expect(function_to_test()). toEqual(“console_output_Im_testing_for”); });

How do you debug angular?

Ensure that your Angular app is still running in your Terminal. Click the Play button at the top of the Debug panel. This launches an instance of Google Chrome in debug mode. In VS Code, you’ll see the Debug toolbar pop up.

How do I debug angular in Chrome?

For Visual Studio code debugging setting, Select Chrome. Once you set your debugging environment it’ll set in launch. json, this file is just for local not for production. Change your port number in URL option where your application is working, like the default port number is 4200.

What debugging means?

Definition: Debugging is the process of detecting and removing of existing and potential errors (also called as ‘bugs’) in a software code that can cause it to behave unexpectedly or crash. … When the bug is fixed, then the software is ready to use.

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