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import io
import json
import os
import sys
from typing import Any
from unittest.mock import MagicMock, patch
import pytest
sys.path.insert(
0, os.path.abspath("../../../..")
) # Adds the parent directory to the system path
import litellm
from litellm.types.utils import TranscriptionResponse
@pytest.fixture
def mock_deepgram_response():
"""Mock Deepgram API response"""
return {
"metadata": {
"transaction_key": "deprecated",
"request_id": "test-request-id",
"sha256": "test-sha",
"created": "2024-01-01T00:00:00.000Z",
"duration": 10.5,
"channels": 1,
"models": ["nova-2"],
},
"results": {
"channels": [
{
"alternatives": [
{
"transcript": "Hello, this is a test transcription.",
"confidence": 0.99,
"words": [
{
"word": "Hello",
"start": 0.0,
"end": 0.5,
"confidence": 0.99,
},
{
"word": "this",
"start": 0.6,
"end": 0.8,
"confidence": 0.98,
},
{
"word": "is",
"start": 0.9,
"end": 1.1,
"confidence": 0.97,
},
{
"word": "a",
"start": 1.2,
"end": 1.3,
"confidence": 0.96,
},
{
"word": "test",
"start": 1.4,
"end": 1.8,
"confidence": 0.95,
},
{
"word": "transcription",
"start": 1.9,
"end": 2.8,
"confidence": 0.94,
},
],
}
]
}
]
},
}
@pytest.fixture
def test_audio_bytes():
"""Mock audio file bytes"""
return b"fake_audio_data_for_testing"
@pytest.fixture
def test_audio_file():
"""Mock audio file object"""
return io.BytesIO(b"fake_audio_data_for_testing")
class TestDeepgramMockTranscription:
"""Test Deepgram transcription with mocked HTTP requests"""
@pytest.mark.parametrize(
"optional_params,expected_url",
[
# Basic transcription without parameters
({}, "https://api.deepgram.com/v1/listen?model=nova-2"),
# Single parameters
(
{"punctuate": True},
"https://api.deepgram.com/v1/listen?model=nova-2&punctuate=true",
),
(
{"diarize": True},
"https://api.deepgram.com/v1/listen?model=nova-2&diarize=true",
),
(
{"measurements": True},
"https://api.deepgram.com/v1/listen?model=nova-2&measurements=true",
),
(
{"diarize": False},
"https://api.deepgram.com/v1/listen?model=nova-2&diarize=false",
),
# String parameters
(
{"tier": "enhanced"},
"https://api.deepgram.com/v1/listen?model=nova-2&tier=enhanced",
),
(
{"version": "latest"},
"https://api.deepgram.com/v1/listen?model=nova-2&version=latest",
),
# Language parameter should be excluded
(
{"language": "en", "punctuate": True},
"https://api.deepgram.com/v1/listen?model=nova-2&punctuate=true",
),
# Multiple parameters with boolean conversion
(
{"punctuate": True, "diarize": False},
"https://api.deepgram.com/v1/listen?model=nova-2&punctuate=true&diarize=false",
),
# Multiple mixed parameters
(
{
"punctuate": True,
"diarize": False,
"measurements": True,
"smart_format": True,
"tier": "enhanced",
},
None,
), # We'll check contains for this one since order may vary
],
)
def test_transcription_url_generation(
self,
mock_deepgram_response,
test_audio_bytes,
optional_params,
expected_url,
):
"""Test transcription URL generation with various parameters"""
# Create mock response
mock_response = MagicMock()
mock_response.json.return_value = mock_deepgram_response
mock_response.status_code = 200
mock_response.headers = {"Content-Type": "application/json"}
with patch(
"litellm.llms.custom_httpx.http_handler.HTTPHandler.post",
return_value=mock_response,
) as mock_post:
response: TranscriptionResponse = litellm.transcription(
model="deepgram/nova-2",
file=test_audio_bytes,
api_key="test-api-key",
**optional_params,
)
# Verify the HTTP call was made
mock_post.assert_called_once()
call_kwargs = mock_post.call_args.kwargs
# Verify URL
actual_url = call_kwargs["url"]
if expected_url is None:
# For multiple params, check that all expected parts are present
assert "model=nova-2" in actual_url
assert "punctuate=true" in actual_url
assert "diarize=false" in actual_url
assert "measurements=true" in actual_url
assert "smart_format=true" in actual_url
assert "tier=enhanced" in actual_url
assert actual_url.startswith("https://api.deepgram.com/v1/listen?")
# Ensure language is not included even if it was in optional_params for other tests
assert "language=" not in actual_url
else:
assert (
actual_url == expected_url
), f"Expected {expected_url}, got {actual_url}"
# Verify headers
assert "Authorization" in call_kwargs["headers"]
assert call_kwargs["headers"]["Authorization"] == "Token test-api-key"
# Verify response
assert response.text == "Hello, this is a test transcription."
assert hasattr(response, "_hidden_params")
def test_transcription_with_custom_api_base(
self, mock_deepgram_response, test_audio_bytes
):
"""Test transcription with custom API base URL"""
mock_response = MagicMock()
mock_response.json.return_value = mock_deepgram_response
mock_response.status_code = 200
mock_response.headers = {"Content-Type": "application/json"}
with patch(
"litellm.llms.custom_httpx.http_handler.HTTPHandler.post",
return_value=mock_response,
) as mock_post:
response: TranscriptionResponse = litellm.transcription(
model="deepgram/nova-2",
file=test_audio_bytes,
api_key="test-api-key",
api_base="https://custom.deepgram.com/v2",
punctuate=True,
)
# Verify the HTTP call was made
mock_post.assert_called_once()
call_kwargs = mock_post.call_args.kwargs
# Verify custom API base is used
expected_url = (
"https://custom.deepgram.com/v2/listen?model=nova-2&punctuate=true"
)
assert call_kwargs["url"] == expected_url
# Verify response
assert response.text == "Hello, this is a test transcription."
def test_transcription_with_file_object(
self, mock_deepgram_response, test_audio_file
):
"""Test transcription with file-like object"""
mock_response = MagicMock()
mock_response.json.return_value = mock_deepgram_response
mock_response.status_code = 200
mock_response.headers = {"Content-Type": "application/json"}
with patch(
"litellm.llms.custom_httpx.http_handler.HTTPHandler.post",
return_value=mock_response,
) as mock_post:
response: TranscriptionResponse = litellm.transcription(
model="deepgram/nova-2",
file=test_audio_file,
api_key="test-api-key",
punctuate=True,
)
# Verify the HTTP call was made
mock_post.assert_called_once()
call_kwargs = mock_post.call_args.kwargs
# Verify URL contains punctuate parameter
expected_url = (
"https://api.deepgram.com/v1/listen?model=nova-2&punctuate=true"
)
assert call_kwargs["url"] == expected_url
# Verify response
assert response.text == "Hello, this is a test transcription."
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