@Test
public void should_not_copy_given_file_from_source_directory_if_it_already_exist() throws Exception {

    write(source.toPath().resolve("pbButton.json"), "contents from source".getBytes());
    write(destination.toPath().resolve("pbButton.json"), "contents from destination".getBytes());
    visitor.visitFile(source.toPath().resolve("pbButton.json"), null);
    assertThat(readAllBytes(destination.toPath().resolve("pbButton.json"))).isEqualTo("contents from destination".getBytes());
}