Lack of support for Spock tests

[TheFriendlyCoder]

I am trying to evaluate this VS Code plugin on a project which uses the Spock test framework, and it doesn't appear to be working. The VS Code Test pane shows no tests found, and none of the test execution decorations on the test methods themselves show up in the file editor.

Is there some special configuration that is needed to get Spock tests to work, or are they not yet supported?