}

    assertContainsExpectedString();
  }

  public void testWrite() throws IOException {
    sink.write(data);

    assertContainsExpectedString();
  }

  public void testWriteLines_systemDefaultSeparator() throws IOException {
    String separator = System.getProperty("line.separator");
    sink.writeLines(lines);

    assertContainsExpectedLines(separator);
  }