FromInstruction { public String getComments() { return comments; } FromInstruction(String fromInstructionLine); private  FromInstruction(String baseImageName, String tag, List<String> additionalParts, String comments); static boolean isFromInstructionWithThisImageAndOlderTag(String lineInFile, String imageName, String imageTag); FromInstruction getFromInstructionWithNewTag(String newTag); static boolean isFromInstruction(String dockerFileLine); @Override String toString(); String getBaseImageName(); boolean hasBaseImage(String imageToFind); boolean hasTag(); boolean hasADifferentTag(String expectedTag); String getTag(); List<String> getAdditionalParts(); boolean hasComments(); String getComments();  }
@Test(dataProvider = "commentData") public void testCommentsParsedCorrectly(String input, String expectedResult) { assertEquals(new FromInstruction(input).getComments(), expectedResult); }