public static String[] parseAsCsv(String key, String value) {
    return parseAsCsv(key, value, identity());
  }
@Test
  @UseDataProvider("testParseAsCsv")
  public void parseAsCsv_for_coverage(String value, String[] expected) {
    // parseAsCsv is extensively tested in org.sonar.server.config.ConfigurationProviderTest
    assertThat(parseAsCsv("key", value))
      .isEqualTo(parseAsCsv("key", value, identity()))
      .isEqualTo(expected);
  }