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Testing JavaScript

Last modified: 09 August 2022

Required plugins: JavaScript and TypeScript, a test framework-specific plugin (if applicable

With RubyMine, you can run and debug JavaScript unit tests using Mocha, Karma, Jest, Protractor, and Cucumber.js.

You can see the test results in a treeview and easily navigate to the test source from there. Test status is shown next to the test in the editor with an option to quickly run or debug it:

Run single test from the editor

For Jest, Karma, and Mocha you can also see a code coverage report right in RubyMine.

Navigation

RubyMine lets you quickly jump from the source code to the related test file with the Go to test action (Ctrl+Shift+T or Navigate | Test). For example, from auth.js you can jump to auth.test.js.

You can also quickly navigate through a test file using the Structure view that shows the names of the tests and suites, as well as other symbols defined in this file.

Structure view for tests

To jump to the Structure tool window, press Alt+7. Alternatively, press Ctrl+F12 to open the Structure view as a popup in the editor.

Running and debugging tests

Before you start with testing JavaScript, make sure the chosen test runner is installed and set up in your project as described on the corresponding page.

Quickly run or debug a single test with Mocha, Karma, or Jest

  • Click the Run button or Rerun in the gutter and choose Run <test_name> or Debug <test_name> from the list.

Run or debug tests using a run/debug configuration

  1. In the Run/Debug Configuration dialog (Run | Edit Configurations), click Add New Configuration, select the appropriate configuration type, and fill in the required fields.

  2. Save the configuration and click the Run button, Run with Coverage, or Debug on the toolbar.

See also

Procedures