🐸 Coqui Studio API integration (#2484)

* Warn when lang is not avail

* Make style

* Implement Coqui Studio API

* Test

* Update docs

* Set action

* Make style

* Make lint

* Update README

* Make style

* Fix action

* Run actions

tests/inference_tests/test_python_api.py

@@ -2,12 +2,41 @@ import os
 import unittest
 
 from tests import get_tests_data_path, get_tests_output_path
-from TTS.api import TTS
+from TTS.api import CS_API, TTS
 
 OUTPUT_PATH = os.path.join(get_tests_output_path(), "test_python_api.wav")
 cloning_test_wav_path = os.path.join(get_tests_data_path(), "ljspeech/wavs/LJ001-0028.wav")
 
 
+class CS_APITest(unittest.TestCase):
+    def test_speakers(self):
+        tts = CS_API()
+        self.assertGreater(len(tts.speakers), 1)
+
+    def test_emotions(self):
+        tts = CS_API()
+        self.assertGreater(len(tts.emotions), 1)
+
+    def test_list_calls(self):
+        tts = CS_API()
+        self.assertGreater(len(tts.list_voices()), 1)
+        self.assertGreater(len(tts.list_speakers()), 1)
+        self.assertGreater(len(tts.list_all_speakers()), 1)
+        self.assertGreater(len(tts.list_speakers_as_tts_models()), 1)
+
+    def test_name_to_speaker(self):
+        tts = CS_API()
+        speaker_name = tts.list_speakers_as_tts_models()[0].split("/")[2]
+        speaker = tts.name_to_speaker(speaker_name)
+        self.assertEqual(speaker.name, speaker_name)
+
+    def test_tts(self):
+        tts = CS_API()
+        wav, sr = tts.tts(text="This is a test.", speaker_name=tts.list_speakers()[0].name)
+        self.assertEqual(sr, 44100)
+        self.assertGreater(len(wav), 1)
+
+
 class TTSTest(unittest.TestCase):
     def test_single_speaker_model(self):
         tts = TTS(model_name="tts_models/de/thorsten/tacotron2-DDC", progress_bar=False, gpu=False)
@@ -26,6 +55,30 @@ class TTSTest(unittest.TestCase):
         self.assertIsNone(tts.speakers)
         self.assertIsNone(tts.languages)
 
+    def test_studio_model(self):
+        tts = TTS(model_name="coqui_studio/en/Torcull Diarmuid/coqui_studio")
+        tts.tts_to_file(text="This is a test.")
+
+        # check speed > 2.0 raises error
+        raised_error = False
+        try:
+            _ = tts.tts(text="This is a test.", speed=4.0, emotion="Sad")  # should raise error with speed > 2.0
+        except ValueError:
+            raised_error = True
+        self.assertTrue(raised_error)
+
+        # check emotion is invalid
+        raised_error = False
+        try:
+            _ = tts.tts(text="This is a test.", speed=2.0, emotion="No Emo")  # should raise error with speed > 2.0
+        except ValueError:
+            raised_error = True
+        self.assertTrue(raised_error)
+
+        # check valid call
+        wav = tts.tts(text="This is a test.", speed=2.0, emotion="Sad")
+        self.assertGreater(len(wav), 0)
+
     def test_multi_speaker_multi_lingual_model(self):
         tts = TTS()
         tts.load_tts_model_by_name(tts.models[0])  # YourTTS