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tests/config/test_azure_speech.py

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+from __future__ import annotations
+
+import unittest
+
+from app.livekit.azure_speech import resolve_azure_speech_tts_config
+
+
+class AzureSpeechTTSTests(unittest.TestCase):
+    def test_resolve_uses_region_voice_and_optional_language(self) -> None:
+        config, missing = resolve_azure_speech_tts_config(
+            {},
+            environ={
+                "AZURE_SPEECH_KEY": "key-123",
+                "AZURE_SPEECH_REGION": "brazilsouth",
+                "AZURE_SPEECH_VOICE": "pt-BR-FranciscaNeural",
+                "AZURE_SPEECH_LANGUAGE": "pt-BR",
+            },
+        )
+
+        self.assertEqual(missing, [])
+        self.assertEqual(config["speech_key"], "key-123")
+        self.assertEqual(config["speech_region"], "brazilsouth")
+        self.assertIsNone(config["speech_endpoint"])
+        self.assertEqual(config["voice"], "pt-BR-FranciscaNeural")
+        self.assertEqual(config["language"], "pt-BR")
+        self.assertIsNone(config["deployment_id"])
+
+    def test_resolve_keeps_explicit_custom_endpoint_for_standard_voice(self) -> None:
+        config, missing = resolve_azure_speech_tts_config(
+            {},
+            environ={
+                "AZURE_SPEECH_KEY": "key-123",
+                "AZURE_SPEECH_REGION": "brazilsouth",
+                "AZURE_SPEECH_ENDPOINT": "https://speech.example.cognitiveservices.azure.com/",
+                "AZURE_SPEECH_VOICE": "pt-BR-FranciscaNeural",
+            },
+        )
+
+        self.assertEqual(missing, [])
+        self.assertEqual(config["speech_region"], "brazilsouth")
+        self.assertEqual(
+            config["speech_endpoint"],
+            "https://speech.example.cognitiveservices.azure.com/tts/cognitiveservices/v1",
+        )
+
+    def test_resolve_prefers_endpoint_and_maps_legacy_override_names(self) -> None:
+        config, missing = resolve_azure_speech_tts_config(
+            {
+                "voice_id": "pt-BR-FranciscaNeural",
+                "model_id": "deployment-42",
+            },
+            environ={
+                "AZURE_SPEECH_KEY": "key-123",
+                "AZURE_SPEECH_REGION": "brazilsouth",
+                "AZURE_SPEECH_ENDPOINT": "https://speech.example.cognitiveservices.azure.com/",
+            },
+        )
+
+        self.assertEqual(missing, [])
+        self.assertEqual(config["deployment_id"], "deployment-42")
+        self.assertEqual(
+            config["speech_endpoint"],
+            "https://speech.example.cognitiveservices.azure.com/voice/cognitiveservices/v1",
+        )
+        self.assertEqual(config["speech_region"], "brazilsouth")
+
+    def test_resolve_accepts_host_alias_and_auth_token(self) -> None:
+        config, missing = resolve_azure_speech_tts_config(
+            {},
+            environ={
+                "AZURE_SPEECH_AUTH_TOKEN": "token-123",
+                "AZURE_SPEECH_HOST": "https://speech.example.cognitiveservices.azure.com/",
+                "AZURE_SPEECH_VOICE": "pt-BR-FranciscaNeural",
+            },
+        )
+
+        self.assertEqual(missing, [])
+        self.assertIsNone(config["speech_key"])
+        self.assertEqual(config["speech_auth_token"], "token-123")
+        self.assertEqual(
+            config["speech_endpoint"],
+            "https://speech.example.cognitiveservices.azure.com/tts/cognitiveservices/v1",
+        )
+
+    def test_resolve_keeps_full_endpoint_path(self) -> None:
+        config, missing = resolve_azure_speech_tts_config(
+            {},
+            environ={
+                "AZURE_SPEECH_KEY": "key-123",
+                "AZURE_SPEECH_ENDPOINT": "https://speech.example.cognitiveservices.azure.com/tts/cognitiveservices/v1",
+                "AZURE_SPEECH_VOICE": "pt-BR-FranciscaNeural",
+            },
+        )
+
+        self.assertEqual(missing, [])
+        self.assertEqual(
+            config["speech_endpoint"],
+            "https://speech.example.cognitiveservices.azure.com/tts/cognitiveservices/v1",
+        )
+
+    def test_resolve_reports_missing_required_settings(self) -> None:
+        config, missing = resolve_azure_speech_tts_config({}, environ={})
+
+        self.assertEqual(config, {})
+        self.assertEqual(
+            missing,
+            [
+                "AZURE_SPEECH_VOICE",
+                "AZURE_SPEECH_ENDPOINT|AZURE_SPEECH_HOST|AZURE_SPEECH_REGION",
+                "AZURE_SPEECH_KEY|AZURE_SPEECH_AUTH_TOKEN",
+            ],
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()