test: add tests for new updates and update formatting in tests

Author: mamoonraja

test/integration/test_language_translator_v3.py

@@ -19,6 +19,9 @@ def test_translate(self):
         translation = self.language_translator.translate(
             text='Hello', model_id='en-es').get_result()
         assert translation is not None
+        translation = self.language_translator.translate(
+            text='Hello, how are you?', target='es').get_result()
+        assert translation is not None
 
     def test_document_translation(self):
         with open(join(dirname(__file__), '../../resources/hello_world.txt'),