// @Test
 public void testDetectLanguageFR() {
   String language = detectLanguageClient.detectLanguage("c'est un test en français");
   assertThat(language).isNotNull();
   assertThat(language).isEqualTo("FR");
 }
 // @Test
 public void testDetectLanguageEN() {
   String language = detectLanguageClient.detectLanguage("this is a test in english");
   assertThat(language).isNotNull();
   assertThat(language).isEqualTo("EN");
 }