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OpenIDEA runs tests with the project’s own test tool (Cargo, Jest, pytest, Maven, Gradle, go test, dotnet test…) and reads its output into a test tree. There is nothing to install beyond what the project already uses.

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Run tests

1

From the gutter

Click the ▶ icon next to a test, a test class or a test module and choose Run ’…’ or Debug ’…’. After a run, the icon turns green or red to show that test’s last result.
2

From the caret

Run › Run Context Configuration (⌃⇧R / Ctrl+Shift+F10) runs the test at the caret, or all tests in the current file.
3

A whole directory

Right-click a test directory in the Project view and choose Run ’…’ to run the tests inside it.
4

Everything

Run a detected test configuration such as cargo test, go test ./..., pytest or the test script of package.json from the run widget.
Running a single test creates a temporary run configuration based on the project’s detected test configuration (for example the test script for Jest, or the Maven / Gradle build for JUnit). See Run configurations to save it or change its options.

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Supported test frameworks

RSpec has its own configuration type (RSpec) and a detected rspec configuration, but no gutter icons. Plugins can add test frameworks and report their results to the same test tree.
For .NET projects that use Microsoft.Testing.Platform, run Install TRX reporting from the .NET tool window so results show in the test tree. See Build tools.

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The test results view

A test run opens a tab in the Run tool window with the test tree next to the console. Failed suites expand automatically.
  • Click a test to see its own output in the console.
  • Double-click, Enter or F4 jumps to the test’s source (Jump to Source).
  • Show Passed and Show Ignored filter the tree. Passed tests are hidden by default; the filters are remembered.
  • Right-click a test or a selection for Run ’…’, Debug ’…’ and Jump to Source.
  • For an assertion failure with expected and actual values, Show Diff opens them side by side.
Detected test configurations show results in the tree automatically. For your own configuration, turn on Modify options › Show results in the test runner.

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Rerun tests

Rerun Failed Tests (in the Run tool window toolbar and Find Action) runs only the tests that failed in the last run, using each tool’s filter syntax. It works for Cargo, Jest / Vitest, pytest, Django, PHPUnit, Go, Maven / Gradle and .NET runs, and for plugin test frameworks. Navigate › Test (⌘⇧T / Ctrl+Shift+T) jumps from a class to its tests and back, using common naming conventions (FooTest, test_foo.py, foo.test.ts…) and the project’s source and test roots. With several matches it shows a chooser. With none, Create New Test… creates one from the file templates.

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Coverage

To see which lines the tests execute, run them with coverage. See Coverage.