MPS 3.3 Help

Run/Debug Configuration: JUnit Tests

JUnit run/debug configurations define how unit tests that are based on the JUnit testing framework should be run.

This run/debug configuration allows JUnit tests stored in MPS models to be run with JUnit.

Click here for the description of the options that are common for all run/debug configurations.

Test scopeClick one of the radio-buttons to pick the granularity of the test to run - the whole project, a particular module, model, class or a method.
Project/Module/Model/Classes/MethodsSpecify the MPS project/module/model/classes/methods that holds the tests to run
Execute in the same processSelect this check box to indicate whether the tests should be run in the same MPS instance.
Onselect this check box to start a new invisible (headless) MPS process in the background to run the tests.
Running test in the same process is usually much faster.
Reuse cachesIndicates whether the generated artifacts, cached during the previous runs should be reused or deleted. Reusing the old caches of headless MPS instance when running tests cuts away a lot of time that would be needed to setup a test instance of MPS. It is possible to set and unset this option in the run configuration dialog.
Save caches in Specify the directory to save the caches in. By default, MPS chooses the temp directory. Thus with the check box Reuse caches selected, MPS saves its caches in the specified folder and reuses them whenever possible. If this check box is unselected, the directory is cleared on every run.
VM parameters Provide command-line arguments to the JVM
Program parameters Provide command-line arguments to the class
Working directory Override the default working directory with an explicit one
Use alternative JRE Explicitly specify a JRE distribution to use for running the class


add Alt+Insert Click this button to add a new configuration to the list.
delete Alt+Delete Click this button to remove the selected configuration from the list.
copy Ctrl+D Click this button to create a copy of the selected configuration.
settings Edit defaultsClick this button to edit the default configuration templates. The defaults are used for newly created configurations.
arrowUp or arrowDown Alt+Up or Alt+Down Use these buttons to move the selected configuration or folder up and down in the list.

The order of configurations or folders in the list defines the order in which configurations appear in the Run/Debug drop-down list on the main toolbar.

sortAlphabetically Sort configurations Click this button to sort configurations in alphabetical order.

Common options

NameIn this text box, specify the name of the current run/debug configuration. This field does not appear for the default run/debug configurations.
Defaults This node in the left-hand pane of the dialog box contains the default run/debug configuration settings. Select the desired configuration to change its default settings in the right-hand pane. The defaults are applied to all newly created run/debug configurations.
Share Select this check box to make the run/debug configuration available to other team members.

The shared run/debug configurations are kept in separate xml files under .idea\runConfigurations folder, while the local run/debug configurations are kept in the .idea\workspace.xml.

This check box is not available when editing the run/debug configuration defaults.

Before launchSpecify which tasks must be performed before applying the run/debug configuration. The specified tasks are performed in the order they appear in the list.
ItemKeyboard shortcutDescription
add Alt+Insert Click this icon to add a task to the list. Select the task to be added:
  • Run External tool. Select this option to run an application which is external to MPS. In the dialog that opens, select the application or applications that should be run. If the necessary application is not defined in MPS yet, add its definition. For more information, see Configuring Third-Party Tools and External Tools.
  • Generate CoffeeScript Source Maps. Select this option to have the source maps for your CoffeeScript sources generated. In the dialog that opens, specify where your CoffeeScript source files are located. For more information, see CoffeeScript Support.
delete Alt+Delete Click this icon to remove the selected task from the list.
edit1 Enter Click this icon to edit the selected task. Make the necessary changes in the dialog that opens.
arrowUp Alt+Up Click this icon to move the selected task one line up in the list.
arrowDown Alt+Down Click this icon to move the selected task one line down in the list.
Show this page Select this check box to have the run/debug configuration settings shown prior to actually starting the run/debug configuration.
Active tool windowSelect this option if you want the Run/Debug tool windows to be activated automatically when you run/debug your application. This option is enabled by default.

See Also

Last modified: 10 December 2015