added test values

app.py

@@ -23,6 +23,13 @@ def text2audio(text, negative_prompt, duration, guidance_scale, random_seed, n_c
     if text is None:
         raise gr.Error("Please provide a text input.")
 
+    # test values
+    negative_prompt="Low quality."
+    duration=10
+    guidance_scale=3.5
+    random_seed=45
+    n_candidates=1
+
     waveforms = pipe(
         text,
         audio_length_in_s=duration,