Code coverage

1. Press Ctrl+Shift+A and start typing edit configurations. Select Edit Configurations and press Enter.

   

2. In the opened Run/Debug Configurations dialog, select the required configuration (for example, Rake, Test::Unit/Shoulda/Minitest, or RSpec), go to the Code Coverage tab and specify the desired settings.

   

Configure code coverage behavior

1. Press Ctrl+Alt+S to open the IDE settings and select Build, Execution, Deployment | Coverage.

2. Define how the collected coverage data will be processed:

   • Show options before applying coverage to the editor: show the Code Coverage dialog every time you run a new run configuration with code coverage.

   • Do not apply collected coverage: discard the new code coverage results.

   • Replace active suites with the new one: discard the active suites and use the new one every time you launch a new run configuration with code coverage.

   • Add to the active suites: add new code coverage suites to the active suites every time you launch a new run configuration with code coverage.

3. Select the Activate Coverage View checkbox to open the Coverage tool window automatically.

Change colors of the coverage highlighting

1. Press Ctrl+Alt+S to open the IDE settings and select Editor | Color Scheme | General.

2. Alternatively, click in the popup that opens on clicking the coverage indication line in the gutter.

3. In the list of components, expand the Line Coverage node and select a type of coverage: for example, Full, Partial or Uncovered.

4. Click the Foreground field to open the Select Color dialog.

5. Select a color, apply the changes, and close the dialog.

• In the Project view.

  

  Here you can navigate through a project and examine the percentage of covered files and lines.

• In the Cover tool window.

  

  You can enable the option to open a selected file in the editor automatically. The button allows you to generate an HTML report based on coverage results.

• In the editor.

  Use the color indicators in the gutter to detect the uncovered lines of code.

  

  To find out how many times a line has been hit, click the corresponding color indicator.

  

  In the opened popup, you can click to configure code coverage colors or hide coverage results by clicking the Hide coverage link. To learn how to display hidden coverage results, see Manage coverage results.

View coverage results from specific suites

1. From the main menu, select Run | Show Coverage Data Ctrl+Alt+F6.

2. In the Choose Coverage Suite to Display dialog, select or deselect the desired suites, and click Show selected.

   

   RubyMine opens coverage results for the selected test suites.

Add the coverage suite from a file

Consider a situation when a file that contains code coverage information has been obtained from another computer. You can load this file from disk and review coverage results.

1. From the main menu, select Run | Show Coverage Data Ctrl+Alt+F6.

2. Click and select the necessary .rcov or .json file in the dialog that opens.

1. From the main menu, select Run | Generate Coverage Report, or click in the Coverage tool window.

2. In the Generate Coverage Report dialog, specify the directory where the generated report will be stored. Optionally, select Open generated HTML in browser. Click Save.