executeSynchronously("/")
      .assertHeader("a\tb", "c\u007fd")
      .assertHeader("\ud83c\udf69", "\u2615\ufe0f")
      .assertHeader("", "ef")
  }

  @Test
  fun customDns() {
    // Configure a DNS that returns our local MockWebServer for android.com.
    val dns = FakeDns()
    dns["android.com"] = Dns.SYSTEM.lookup(server.url("/").host)
    client =
      client

        props.setProperty("jcifs.smb.client.nativeOs", "CustomOS");
        props.setProperty("jcifs.smb.client.nativeLanMan", "CustomLanman");
        assertDoesNotThrow(() -> SingletonContext.init(props));
        CIFSContext context = SingletonContext.getInstance();
        assertNotNull(context);
        assertEquals("CustomOS", context.getConfig().getNativeOs());

    void testInitDefaultsWithPresetNativeOs() throws CIFSException {
        BaseConfiguration testConfig = new BaseConfiguration(false);
        testConfig.nativeOs = "CustomOS";

        testConfig.initDefaults();

        assertEquals("CustomOS", testConfig.getNativeOs());
    }

    @Test
    @DisplayName("Test initDefaults with various flag combinations")