bunch of short fixes

tests/test_demo_server.sh

@@ -7,7 +7,7 @@ SERVER_PID=$!
 echo 'Waiting for server...'
 sleep 30
 
-curl -o /tmp/audio.wav "http://localhost:8080/api/tts?text=synthesis%20schmynthesis"
+curl -o /tmp/audio.wav "http://localhost:5002/api/tts?text=synthesis%20schmynthesis"
 python -c 'import sys; import wave; print(wave.open(sys.argv[1]).getnframes())' /tmp/audio.wav
 
 kill $SERVER_PID

tests/test_synthesizer.py

@@ -9,7 +9,7 @@ from TTS.tts.utils.text.symbols import make_symbols, phonemes, symbols
 from TTS.utils.io import load_config
 
 
-class DemoServerTest(unittest.TestCase):
+class SynthesizerTest(unittest.TestCase):
     # pylint: disable=R0201
     def _create_random_model(self):
         # pylint: disable=global-statement