map.put(expectedBytes);

    // Verify
    byte[] actualBytes = Files.toByteArray(file);
    assertThat(actualBytes).isEqualTo(expectedBytes);
  }

  public void testMap_readWrite_creates() throws IOException {
    // Test data
    int size = 1024;
    byte[] expectedBytes = newPreFilledByteArray(1024);

    // Setup
    File file = createTempFile();
    boolean deleted = file.delete();