plugins/devkit/testData/resolveTestDataPath/ReferencesAfterProjectRoot.java

@com.intellij.testFramework.TestDataPath("$PROJECT_ROOT/pro<caret>jectSubdir/")
class ATest extends LightCodeInsightFixtureTestCase {
  protected void doTest() {
    configureByFile(getTestName(true) + ".java");
  }
}