assertTrue(fieldConfigs.getConfig("foo").map(FieldConfigs.Config::isCache).orElse(false));
        assertFalse(fieldConfigs.getConfig("foo").map(FieldConfigs.Config::isOverwrite).orElse(false));
    }

    public void test_cache() {
        final Map<String, String> params = Maps.of("foo", "cache");
        FieldConfigs fieldConfigs = new FieldConfigs(params);
        assertTrue(fieldConfigs.getConfig("test").isEmpty());

        queryCommand.setLowercaseWildcard(true);

        assertEquals("testcase", queryCommand.toLowercaseWildcard("TestCase"));
        assertEquals("test_case", queryCommand.toLowercaseWildcard("Test_Case"));
        assertEquals("test-case", queryCommand.toLowercaseWildcard("Test-Case"));
    }

    public void test_toLowercaseWildcard_internationalCharacters() {

    val ctxt = InstrumentationRegistry.getInstrumentation().targetContext.applicationContext

    val cacheSize = 1L * 1024 * 1024 // 1MB
    val cache = Cache(ctxt.cacheDir.resolve("testCache"), cacheSize)

    try {
      client =
        client
          .newBuilder()
          .cache(cache)
          .build()

      val request =
        Request
          .Builder()