Run/Debug Configuration: Karma

In this dialog box, create configurations for running and debugging JavaScript unit tests using the Karma test runner.

On this page:

• Getting Access to the Run/Debug Configuration: Karma Dialog Box
• Karma-Specific Configuration Settings
• Toolbar
• Common options

Getting Access to the Run/Debug Configuration: Karma Dialog Box

1. Make sure the Node.js plugin is enabled. The plugin is bundled with WebStorm and activated by default. If the plugin is not activated, enable it on the Plugins page of the Settings / Preferences Dialog as described in Enabling and Disabling Plugins.
2. Download and install the NodeJS runtime environment that contains the Node Package Manager(npm).
3. Using the Node Package Manager, install the Karma test runner as described in Preparing to Use Karma Test Runner.
4. Make sure the Karma plugin is activated. The plugin is bundled with WebStorm and activated by default. If the plugin is not activated, enable it on the Plugins page of the Settings / Preferences Dialog as described in Enabling and Disabling Plugins.

Karma-Specific Configuration Settings

Item	Description
Name	In this text box, specify the name of the run/debug configuration.
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.
Node.js interpreter
Karma Node.js package	In this field, specify the Karma installation home /npm/node_modules/karma. If you installed Karma regularly through the Node Package Manager, WebStorm detects the Karma installation home itself. Alternatively, type the path to executable file manually, or click the Browse button and select the location in the dialog box, that opens.
Configuration file	In this field, specify the location of the Karma configuration file. Normally, the file has the extensions .conf.js

Toolbar

Item	Shortcut	Description
	Alt+Insert	Click this button to add a new configuration to the list.
	Alt+Delete	Click this button to remove the selected configuration from the list.
	Ctrl+D	Click this button to create a copy of the selected configuration.
	Edit defaults	Click this button to edit the default configuration templates. The defaults are used for newly created configurations.
or	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.
	Sort configurations	Click this button to sort configurations in alphabetical order.

Common options

Item	Description
Name	In 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.
Single instance only	If this check box is selected, this run/debug configuration cannot be launched more than once. Every time a new run/debug configuration is launched, WebStorm checks the presence of the other instances of the same run/debug configuration, and displays a confirmation dialog box. If you click OK in the confirmation dialog box, the first instance of the runner will be stopped, and the next one will take its place. This makes sense when the usage of certain resources can cause conflicts, or when launching two run/debug configurations of the same type consumes too much of the CPU and memory resources. If this check box is not selected, it is possible to launch as many instances of the runner as required. So doing, each runner will start in its own tab of the Run tool window.
Before launch	Specify which tasks must be performed before applying the run/debug configuration. The specified tasks are performed in the order they appear in the list. Item Keyboard shortcut Description 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 WebStorm. In the dialog that opens, select the application or applications that should be run. If the necessary application is not defined in WebStorm yet, add its definition. For more information, see Configuring Third-Party Tools and External Tools. Run Another Configuration. Select this option to have another run/debug configuration executed. In the dialog that opens, select the configuration to run. This option is available only if you have already at least one run/debug configuration in the current project. Run File Watchers. Select this option to have WebStorm apply all the currently active file watchers, see Using File Watchers for details. 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. Alt+Delete Click this icon to remove the selected task from the list. Enter Click this icon to edit the selected task. Make the necessary changes in the dialog that opens. Alt+Up Click this icon to move the selected task one line up in the list. 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 window Select 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.