You can run tests with custom configuration. The configuration can be specified in settings.json using the key java.test.config.

It's recommended to save the test configuration as workspace settings. To open workspace settings, run command Preferences: Open Workspace Settings (JSON).

Here is an example of the configuration schema:

"java.test.config": [
    {
        "name": "myConfiguration",
        "workingDirectory": "${workspaceFolder}",
        "vmargs": [ "-Xmx512M" ],
        "env": { "key": "value" },
    },
    {
        // Another configuration item...
    },
  ...
]

Note: The commands Run With Configuration and Debug With Configuration are removed from version 0.14.0. The extension will let you select the configuration if it detects there are customized configuration available.

The value of java.test.config is an object or an object array, each object is a configuration item, which may have the following properties:

When you have custom configurations, you'll be asked to pick one every time when running/debugging your test cases. To avoid that, you can use java.test.defaultConfig and set its value to the name of a configuration.

If you want to bypass any existing configurations, you can use the built-in configuration named "default" which has the following definition:

{
    "name": "default",
    "workingDirectory": "${workspaceFolder}"
}