Put the three providers in a table, and test the request rather than the list

Reworked on top of master. The Groq request itself needed nothing beyond a key,
a base URL and a model id, but two providers fit in an if and an else where
three do not, and each one was written out four times: in transcribe_target(),
in the key rows of the settings window, in save and in load.

config.TRANSCRIBERS holds them now, one row each: the name the user sees and
the three settings that keep its key, its endpoint and its model. The variable
an empty key falls back to is the name of its setting, shouted. The provider
box, save, load, `dikte models --provider` and `dikte test-key` all read that
table, so a fourth provider is a row and a default rather than a branch in five
files. The key field, its Test button and its answer line are built once and
the three signals became one that carries which key was asked about.

The tests moved into the files of the modules they cover and check what a
provider actually changes: that the request goes to api.groq.com with the right
model and fields, that the glossary now reaches everything except OpenRouter,
that a Groq error says Groq, and that the settings window carries the key and
the model there and back. GROQ_API_KEY is cleared for the test run like the
other two, so a developer who has one does not send a test to the network.

Co-authored-by: Muzaffer Emre <[email protected]>

tests/test_api.py

@@ -21,6 +21,7 @@ from tests.support import (
 )
 
 OPENAI = api.Target("openai", "OpenAI", "sk-test", api.OPENAI_URL, "gpt-4o-transcribe")
+GROQ = api.Target("groq", "Groq", "gsk-test", api.GROQ_URL, "whisper-large-v3-turbo")
 OPENROUTER = api.Target("openrouter", "OpenRouter", "sk-or-test",
                         api.OPENROUTER_URL, "openai/gpt-4o-transcribe")
 
@@ -32,6 +33,18 @@ class TimestampModel(unittest.TestCase):
     def test_openrouter_namespaces_the_id(self):
         self.assertEqual(api.timestamp_model("openrouter"), "openai/whisper-1")
 
+    def test_groq_keeps_the_model_that_was_chosen(self):
+        """Every model it transcribes with is a whisper, so all of them do times."""
+        self.assertEqual(api.timestamp_model("groq", "whisper-large-v3"),
+                         "whisper-large-v3")
+
+    def test_groq_with_nothing_chosen_falls_back(self):
+        self.assertEqual(api.timestamp_model("groq"), "whisper-large-v3-turbo")
+
+    def test_the_others_ignore_what_was_chosen(self):
+        self.assertEqual(api.timestamp_model("openai", "gpt-4o-transcribe"),
+                         "whisper-1")
+
 
 class Explain(DikteTest):
     def error(self, status):
@@ -176,13 +189,28 @@ class Transcribe(DikteTest):
         self.assertEqual(multipart_fields(calls[0])["language"], "tr")
         self.assertNotIn("language", multipart_fields(calls[1]))
 
-    def test_the_glossary_goes_to_openai_only(self):
+    def test_the_glossary_goes_everywhere_but_openrouter(self):
         """OpenRouter takes the field and throws it away, so spare it the bytes."""
         with fake_urlopen({"text": "hi"}) as calls:
             api.transcribe(OPENAI, self.wav, prompt="Paraşüt, OpenFrame")
+            api.transcribe(GROQ, self.wav, prompt="Paraşüt, OpenFrame")
             api.transcribe(OPENROUTER, self.wav, prompt="Paraşüt, OpenFrame")
         self.assertIn("prompt", multipart_fields(calls[0]))
-        self.assertNotIn("prompt", multipart_fields(calls[1]))
+        self.assertIn("prompt", multipart_fields(calls[1]))
+        self.assertNotIn("prompt", multipart_fields(calls[2]))
+
+    def test_groq_goes_to_groq(self):
+        with fake_urlopen({"text": "hi"}) as calls:
+            api.transcribe(GROQ, self.wav)
+        self.assertEqual(calls[0].full_url,
+                         "https://api.groq.com/openai/v1/audio/transcriptions")
+        self.assertEqual(multipart_fields(calls[0])["model"], "whisper-large-v3-turbo")
+
+    def test_a_refused_groq_key_is_explained_in_groq_s_name(self):
+        with fake_urlopen(http_error(401, '{"error": {"message": "bad key"}}')), \
+                self.assertRaises(api.ApiError) as caught:
+            api.transcribe(GROQ, self.wav)
+        self.assertIn("Groq", str(caught.exception))
 
     def test_openrouter_is_attributed(self):
         with fake_urlopen({"text": "hi"}) as calls:
@@ -242,6 +270,12 @@ class TranscribeSegments(DikteTest):
             api.transcribe_segments(OPENROUTER, self.wav)
         self.assertEqual(multipart_fields(calls[0])["model"], "openai/whisper-1")
 
+    def test_groq_stays_on_the_model_it_was_given(self):
+        target = GROQ._replace(model="whisper-large-v3")
+        with fake_urlopen(self.reply([{"start": 0, "end": 1, "text": "hi"}])) as calls:
+            api.transcribe_segments(target, self.wav)
+        self.assertEqual(multipart_fields(calls[0])["model"], "whisper-large-v3")
+
     def test_the_segments_come_back_as_numbers(self):
         with fake_urlopen(self.reply([
             {"start": "0.5", "end": "2.25", "text": " hello "},
@@ -432,6 +466,18 @@ class ModelLists(DikteTest):
         with self.assertRaises(api.ApiError):
             api.openai_models("")
 
+    def test_the_same_list_read_from_groq(self):
+        with fake_urlopen({"data": [{"id": "llama-3.3-70b"},
+                                    {"id": "whisper-large-v3"}]}) as calls:
+            models = api.openai_models("gsk-test", api.GROQ_URL, "Groq")
+        self.assertEqual(calls[0].full_url, "https://api.groq.com/openai/v1/models")
+        self.assertEqual(models, ["whisper-large-v3"])
+
+    def test_a_missing_groq_key_says_groq(self):
+        with self.assertRaises(api.ApiError) as caught:
+            api.openai_models("", api.GROQ_URL, "Groq")
+        self.assertIn("Groq", str(caught.exception))
+
 
 if __name__ == "__main__":
     unittest.main()