assertEquals(
        ImmutableList.of("hello", "", " world  ", ""), Files.readLines(temp, Charsets.UTF_8));

    assertTrue(temp.delete());
  }

  public void testReadLines_withLineProcessor() throws IOException {
    File temp = createTempFile();
    LineProcessor<List<String>> collect =
        new LineProcessor<List<String>>() {
          List<String> collector = new ArrayList<>();

    assertEquals(
        ImmutableList.of("hello", "", " world  ", ""), Files.readLines(temp, Charsets.UTF_8));

    assertTrue(temp.delete());
  }

  public void testReadLines_withLineProcessor() throws IOException {
    File temp = createTempFile();
    LineProcessor<List<String>> collect =
        new LineProcessor<List<String>>() {
          List<String> collector = new ArrayList<>();