@Test
public void updateCommentEmptyStringTest() {

    Response response = target().path("merge-requests/" + encode(request1.getResource().stringValue()) + "/comments/"
            + encode(comment1.getResource().stringValue()))
            .request()
            .put(Entity.text(""));
    verify(requestManager, never()).updateComment(eq(comment1.getResource()), any(Comment.class));
    assertEquals(response.getStatus(), 400);
}