TextToSpeechTest: move out the unsupported language tests to a separate method and check that the language does not get updated.

android/eSpeakTests/src/com/reecedunn/espeak/test/TextToSpeechTest.java

         }
     }
 
-    public void testLanguages()
+    public void testUnsupportedLanguage()
     {
         assertThat(mEngine, is(notNullValue()));
+
+        Locale initialLocale = mEngine.getLanguage();
         assertThat(mEngine.isLanguageAvailable(new Locale("cel")), is(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(mEngine.getLanguage().getLanguage(), is(initialLocale.getLanguage()));
+        assertThat(mEngine.getLanguage().getCountry(), is(initialLocale.getCountry()));
+        assertThat(mEngine.getLanguage().getVariant(), is(initialLocale.getVariant()));
+    }
+
+    public void testLanguages()
+    {
+        assertThat(mEngine, is(notNullValue()));
 
         for (VoiceData.Voice data : VoiceData.voices)
         {