How do you debug Karma test cases?

How do you debug a test case?

Debug a test case

  1. Open a test case and switch to the Script view.
  2. Double-click on the leftmost side of the script editor to mark a breakpoint for the step from which you want to start debugging.
  3. Choose the browser for Debug from the main toolbar.
  4. Confirm (select Yes) when asked to show the Debug perspective.

How do you debug angular test cases in Visual Studio code?

Now all you have to do is run ng test in the background. And when you need to check what is happening in a given test, all you have to do is insert a breakpoint on a given line or add debugger , press F5 and you have everything you need.

How do you debug Jasmine tests in Visual Studio code?

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 Jasmine test cases?

Debugging Jasmine Unit tests running with Karma runner in VS Code

  1. Step 1 : Create the angular app. …
  2. Step 2 : Setting up the karma.conf.js for running tests in Chrome browser. …
  3. Step 3 : Setting up Karma.conf.js for Chrome debugging. …
  4. Step 4 : Setting up VS Code With Chrome Debugger.


How do I debug xUnit test cases?

Open the test project’s properties and go to Debug tab:

  1. Under “Start Action” set “Start external program” to the xUnit runner executable of choice.
  2. Under “Start Options” set “Command line arguments” to the name of your project’s debug DLL.
  3. Also set “Working directory” to the project’s “binDebug” directory.

Can we debug JUnit test cases?

Debugging a Test Failure

In the case of a test failure you can follow these steps to debug it: Double click the failure entry from the Failures tab in the JUnit view to open the corresponding file in the editor. … Select the test case and execute Debug As>JUnit Test from the Debug drop down.

How do you debug Karma test cases in VS code?

  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 you start a debug session in VS code?

Once you have your launch configuration set, start your debug session with F5. Alternatively you can run your configuration through the Command Palette (Ctrl+Shift+P), by filtering on Debug: Select and Start Debugging or typing ‘debug ‘ , and selecting the configuration you want to debug.

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What is the difference between karma and Jasmine?

Manually running Jasmine tests by refreshing a browser tab repeatedly in different browsers every time we edit some code can become tiresome. Karma is a tool which lets us spawn browsers and run Jasmine tests inside of them all from the command line.

How do I install Jasmine?

You can install Jasmine using npm locally in your project:

  1. npm install –save-dev jasmine.
  2. npm install -g jasmine.
  3. { // Spec directory path relative to the current working dir when jasmine is executed. “

How do I run a specific test in Jasmine?

If you want to run a specific test, use fit() instead of it() . The f stands for focused. describe(‘description’, function () { fit(‘test 1’, function () {}); it(‘test 2’, function () {}); }); In the example above, only test 1 will execute.

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.

How can I debug angular?

TLDR – For an Angular CLI application, create a debug configuration in VS Code, install the Debugger for Chrome extension, then run in debug mode.

  1. Step 1 – Creating a Starter Project. …
  2. Step 2 – Creating Your Debug Configuration. …
  3. Step 3 – Debugging Your App.


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)
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