In this test we will check if the commenter, implemented in the Commenter section of the Custom Language Support Tutorial, works as we expect.
9.1. Define a test method
public void testCommenter() {
myFixture.configureByText(SimpleFileType.INSTANCE, "<caret>website = http://en.wikipedia.org/");
CommentByLineCommentAction commentAction = new CommentByLineCommentAction();
commentAction.actionPerformedImpl(getProject(), myFixture.getEditor());
myFixture.checkResult("#website = http://en.wikipedia.org/");
commentAction.actionPerformedImpl(getProject(), myFixture.getEditor());
myFixture.checkResult("website = http://en.wikipedia.org/");
}
9.2. Run the test
Run the test and make sure it's green.