@Test(dataProvider = "inputlines")
public void testChangeIfDockerfileBaseImageLine(String img, String tag,
                                                String line, boolean expected) throws Exception {

    gitHubUtil = mock(GitHubUtil.class);
    dockerfileGitHubUtil = new DockerfileGitHubUtil(gitHubUtil);
    assertEquals(dockerfileGitHubUtil.changeIfDockerfileBaseImageLine(img, tag, new StringBuilder(), line),
            expected);
}