ByteArrayOutputStream out = new ByteArrayOutputStream();
    Files.copy(i18nFile, out);
    assertThat(out.toString("UTF-8")).isEqualTo(I18N);
  }

  public void testCopyToAppendable() throws IOException {
    File i18nFile = getTestFile("i18n.txt");
    StringBuilder sb = new StringBuilder();
    Files.copy(i18nFile, UTF_8, sb);
    assertThat(sb.toString()).isEqualTo(I18N);
  }

cpovirk <******@****.***> 1773337518 -0700