### Question:
MicroconfigParams { public File destinationDir() { return new File(parser.valueOr("d", "build")); }  static MicroconfigParams parse(String... args); File rootDir(); File destinationDir(); String env(); List<String> groups(); List<String> services(); boolean stacktrace(); boolean version(); boolean jsonOutput();  }### Answer:
@Test void destinationDir() { assertEquals(new File("destination"), params.destinationDir()); assertEquals(new File("build"), empty.destinationDir()); }