JetBrains Rider 2020.2 Help

Unit Tests window

View | Tool Windows | Unit Tests
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This window lets you manage all your unit testing activities in different tabs.

To search tests, start typing a test name or its CamelHumps abbreviation as soon as your focus is in this window.

Explorer tab

Using this tab, you can explore and run, debug, or cover unit tests of all supported frameworks in the entire solution. Note that unit tests from a project only appear in the tab after the project is built. Tests from currently opened files are updated automatically, new tests from the opened files appear in the unit test explorer as soon as you create them.

Unit Test Explorer displays tests from the entire solution

When the Explorer tab, or any unit test session tab is open, you can use the following controls on the left-hand toolbar:

Toolbar Controls

ControlNameDescription
icons.runConfigurations.testState.run.pngRun Unit TestsCtrl+;, R

Runs selected tests. To select multiple tests, click them holding the Ctrl key.

You can use the integrated drop-down selector for other actions on the current session:

ThemedIcon Cover Screen Gray pngCover Unit Tests By clicking this button, you can start code coverage of the selected tests.
ThemedIcon UtrProfile Screen Gray pngProfile Unit Tests By clicking this button, you can profile selected tests.
ThemedIcon DotMemoryUnitRun Screen Gray pngRun Unit Tests under dotMemory UnitCtrl+;, M Runs selected tests with dotMemory Unit enabled. Use this button to run tests that use dotMemory Unit framework to check code for memory issues.
icons.actions.startDebugger.pngDebug Unit TestsCtrl+;, D Starts debugging for selected tests in the current session.
ThemedIcon Cover Screen Gray pngCover Unit Tests By clicking this button, you can start code coverage of the selected tests.
ThemedIcon UtrProfile Screen Gray pngProfile Unit Tests By clicking this button, you can profile selected tests.
ThemedIcon DotMemoryUnitRun Screen Gray pngRun Unit Tests under dotMemory UnitCtrl+;, M Runs selected tests with dotMemory Unit enabled. Use this button to run tests that use dotMemory Unit framework to check code for memory issues.
icons.actions.groupBy.pngGroup by Allows grouping items in the window by different categories.
ThemedIcon StatusAll Screen Gray pngAll Tests Show all tests in the current test session.
ThemedIcon Success Screen Gray pngPassed Tests Only show successful tests and hide all other tests.
ThemedIcon StatusFailedPassive Screen Gray pngFailed Tests Only show failed tests and hide all other tests.
ThemedIcon Ignore Screen Gray pngIgnored Tests Only show ignored tests and hide all other tests. A test is ignored if it has the corresponding attribute, or if the whole category where it belongs is ignored.
icons.toolbarDecorator.import.pngImport Session Click to open a test session that you have previously saved in a .testsession file.
ThemedIcon ExpandAll Screen Gray png ThemedIcon CollapseAll Screen Gray pngExpand All/ Collapse All
Ctrl+NumPad +/ Ctrl+NumPad -
Expands/collapses all nodes in the current tab.
ThemedIcon Up Screen Gray png ThemedIcon Down Screen Gray pngPrevious/ Next
Ctrl+Alt+Up / Ctrl+Alt+Down
Navigate to the previous/next item and scrolls through the source code accordingly.
ThemedIcon Settings Screen Gray pngUnit Test Settings Opens the Build, Execution, Deployment | Unit Testing page of JetBrains Rider options , where you can configure all settings related to unit testing.

Unit test sessions tabs

These tabs appear each time you run tests from the current document or from the project or solution. For every new combination of tests (unit test session), a new tab opens.

These tabs are designed to help you run any number of unit test sessions, simultaneously and independently of each other. Sessions can be composed of any combination of tests. In the debugging mode, only one session can be run at a time.

The unit test tree shows the structure of tests belonging to a session, which you can filter to show only passed, failed or ignored unit tests. You can navigate to the code of any unit test by double-clicking it.

A unit test session displayed in the Unit Tests window

When a unit test session tab is open, you can additionally use the following controls on the upper toolbar:

Toolbar Controls

ControlNameDescription
ThemedIcon Rerun Screen Gray pngRepeat Previous RunCtrl+;, T Repeats the previous test run.
icon rerun failed tests pngRerun Failed Tests Ctrl+;, F Starts execution of tests that failed in the previous run.
icons.runConfigurations.testState.run_run.pngRun Current SessionCtrl+;, Y

Runs all tests in the current session.

icons.runConfigurations.testState.run.pngRun Unit TestsCtrl+;, R

Runs selected tests. To select multiple tests, click them holding the Ctrl key.

You can use the integrated drop-down selector for other actions on the current session:

ThemedIcon Cover Screen Gray pngCover Unit Tests By clicking this button, you can start code coverage of the selected tests.
ThemedIcon UtrProfile Screen Gray pngProfile Unit Tests By clicking this button, you can profile selected tests.
ThemedIcon DotMemoryUnitRun Screen Gray pngRun Unit Tests under dotMemory UnitCtrl+;, M Runs selected tests with dotMemory Unit enabled. Use this button to run tests that use dotMemory Unit framework to check code for memory issues.
ThemedIcon StopTest Screen Gray pngStop Execution Stops the current test session.
ThemedIcon StatusAll Screen Gray pngAll Tests Show all tests in the current test session.
ThemedIcon Success Screen Gray pngPassed Tests Only show successful tests and hide all other tests.
ThemedIcon StatusFailedPassive Screen Gray pngFailed Tests Only show failed tests and hide all other tests.
ThemedIcon Ignore Screen Gray pngIgnored Tests Only show ignored tests and hide all other tests. A test is ignored if it has the corresponding attribute, or if the whole category where it belongs is ignored.
icon broken tests pngBroken Tests Only show broken tests. A test is considered broken if it was started but JetBrains Rider could not read the test runner output. This normally happens when you abort test execution, but could also be a sign of an error occurring in the test runner.
icons.vcs.history.pngShow Time Allows you to show or hide execution time for each item.
icon toggle output position pngToggle Output Position Use this button to change the position (right or bottom) of the output pane, which lets you analyze test results and navigate from a failed test's output to the code lines that originated the assertion or exception.
icons.general.gearPlain.pngSession Options

You can configure this set of preferences individually for each test session.

  • Build Policy— Specifies whether building is required before executing tests. Provides several options:
    • Automatic (selected by default) — Before executing tests, JetBrains Rider will rebuild all projects that are related to the current test session and that have changes since the last execution.

    • Whole Solution— Before executing tests, JetBrains Rider will rebuild all projects in your solution that have changes since the last execution.

    • Never— JetBrains Rider will not build anything before executing tests. If you choose this option, you will have to make sure all related projects are built.

  • ThemedIcon LockSession Screen Gray png Lock SessionLocks the current test session to prevent automatically adding new tests to this session.

  • Show Time— Allows you to show or hide execution time for each item in the test session.

  • Platform— Lets you explicitly specify platform architecture (x86 or x64) of the test runner or choose Automatic to use platform architecture corresponding to the project settings.

  • Target Framework— Lets you explicitly specify the .NET framework (CLR) version of the test runner or choose Automatic to use the latest installed version.

  • Diagnostics— Click this button to open the log of the last executed test session.

Title bar context menu and buttons

You can right-click the window title bar and use the context menu to configure its viewing mode, associate the window with a different tool window bar, or resize and hide the window.

You can also use the toolbar buttons:

ItemShortcutDescription
icons.general.gearPlain.png Click this button to access a subset of the context menu commands that let you configure window's viewing mode.
Hide tool window

Use this icon or shortcut to hide the tool window .

When used in combination with the Alt key, clicking this icon hides all the tool windows attached to the same tool window bar.

Last modified: 05 June 2020