@Test
  public void collection_FilesInDirectory() throws Exception {

    FileProcessor fileProcessor = new FileProcessor();
    Collection<String> files = fileProcessor.resolveFiles("/data/dummy1.json");
    assertFalse(files.isEmpty());
    assertEquals(1, files.size());

    files = fileProcessor.resolveFiles("./data/*.json");
    assertFalse(files.isEmpty());
    assertEquals(2, files.size());

    files = fileProcessor.resolveFiles("./data/*.json");
    assertFalse(files.isEmpty());
    assertEquals(2, files.size());

    files = fileProcessor.resolveFiles("./data/*");
    assertFalse(files.isEmpty());
    assertTrue("Not enough files found", files.size() > 5);

    files = fileProcessor.resolveFiles("./data/");
    assertFalse(files.isEmpty());
    assertTrue("Not enough files found", files.size() > 5);

    files = fileProcessor.resolveFiles("/model/csvtest.json");
    assertFalse(files.isEmpty());
    assertEquals(1, files.size());
  }