@Test
public void fetchesFiles() throws Exception {
final String filename = "file.txt";
final CommitsComparison.Smart comparison = new CommitsComparison.Smart(
new RtCommitsComparison(
new FakeRequest().withBody(
Json.createObjectBuilder()
.add("base_commit", Json.createObjectBuilder())
.add("commits", Json.createArrayBuilder())
.add(
"files",