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59bd45e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 | """Unit tests for ASR service.
This module contains unit tests for the ASRService class, testing
API call success scenarios, failure scenarios, and edge cases.
Requirements: 2.1, 2.2, 2.3, 2.4
"""
import pytest
from unittest.mock import AsyncMock, MagicMock
import httpx
from app.asr_service import ASRService, ASRServiceError
@pytest.fixture
def asr_service():
"""Create an ASRService instance for testing."""
return ASRService(api_key="test_api_key_12345")
@pytest.fixture
def mock_audio_file():
"""Create mock audio file bytes."""
return b"fake_audio_data_for_testing"
@pytest.mark.asyncio
async def test_asr_service_initialization(asr_service):
"""Test ASR service initialization.
Requirements: 2.1
"""
assert asr_service.api_key == "test_api_key_12345"
assert asr_service.model == "glm-asr-2512"
assert asr_service.api_url == "https://api.z.ai/api/paas/v4/audio/transcriptions"
assert isinstance(asr_service.client, httpx.AsyncClient)
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_transcribe_success(asr_service, mock_audio_file, mocker):
"""Test successful transcription.
Requirements: 2.1, 2.2
"""
# Mock successful API response
mock_response = MagicMock()
mock_response.status_code = 200
mock_response.json.return_value = {
"id": "test_id",
"created": 1234567890,
"request_id": "test_request_id",
"model": "glm-asr-2512",
"text": "这是一段测试语音转写的文本内容"
}
# Mock the HTTP client post method
mock_post = mocker.patch.object(
asr_service.client,
'post',
return_value=mock_response
)
# Call transcribe
result = await asr_service.transcribe(mock_audio_file, "test.mp3")
# Verify result
assert result == "这是一段测试语音转写的文本内容"
# Verify API was called correctly
mock_post.assert_called_once()
call_args = mock_post.call_args
assert call_args.kwargs['headers']['Authorization'] == "Bearer test_api_key_12345"
assert call_args.kwargs['data']['model'] == "glm-asr-2512"
assert call_args.kwargs['data']['stream'] == "false"
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_transcribe_empty_result(asr_service, mock_audio_file, mocker):
"""Test transcription with empty recognition result.
This tests the edge case where the audio cannot be recognized
and the API returns an empty text field.
Requirements: 2.4
"""
# Mock API response with empty text
mock_response = MagicMock()
mock_response.status_code = 200
mock_response.json.return_value = {
"id": "test_id",
"created": 1234567890,
"request_id": "test_request_id",
"model": "glm-asr-2512",
"text": ""
}
# Mock the HTTP client post method
mocker.patch.object(
asr_service.client,
'post',
return_value=mock_response
)
# Call transcribe
result = await asr_service.transcribe(mock_audio_file, "empty.mp3")
# Verify result is empty string
assert result == ""
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_transcribe_whitespace_only_result(asr_service, mock_audio_file, mocker):
"""Test transcription with whitespace-only result.
Requirements: 2.4
"""
# Mock API response with whitespace-only text
mock_response = MagicMock()
mock_response.status_code = 200
mock_response.json.return_value = {
"id": "test_id",
"created": 1234567890,
"request_id": "test_request_id",
"model": "glm-asr-2512",
"text": " \n\t "
}
# Mock the HTTP client post method
mocker.patch.object(
asr_service.client,
'post',
return_value=mock_response
)
# Call transcribe
result = await asr_service.transcribe(mock_audio_file, "whitespace.mp3")
# Verify result is empty string
assert result == ""
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_transcribe_api_error_status(asr_service, mock_audio_file, mocker):
"""Test transcription when API returns error status code.
Requirements: 2.3
"""
# Mock API error response
mock_response = MagicMock()
mock_response.status_code = 500
mock_response.json.return_value = {
"error": {
"message": "Internal server error",
"code": "internal_error"
}
}
mock_response.text = "Internal server error"
# Mock the HTTP client post method
mocker.patch.object(
asr_service.client,
'post',
return_value=mock_response
)
# Call transcribe and expect exception
with pytest.raises(ASRServiceError) as exc_info:
await asr_service.transcribe(mock_audio_file, "error.mp3")
# Verify error message
assert "语音识别服务不可用" in str(exc_info.value)
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_transcribe_api_timeout(asr_service, mock_audio_file, mocker):
"""Test transcription when API request times out.
Requirements: 2.3
"""
# Mock timeout exception
mocker.patch.object(
asr_service.client,
'post',
side_effect=httpx.TimeoutException("Request timeout")
)
# Call transcribe and expect exception
with pytest.raises(ASRServiceError) as exc_info:
await asr_service.transcribe(mock_audio_file, "timeout.mp3")
# Verify error message
assert "语音识别服务不可用" in str(exc_info.value)
assert "请求超时" in str(exc_info.value)
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_transcribe_network_error(asr_service, mock_audio_file, mocker):
"""Test transcription when network error occurs.
Requirements: 2.3
"""
# Mock network error
mocker.patch.object(
asr_service.client,
'post',
side_effect=httpx.RequestError("Network error")
)
# Call transcribe and expect exception
with pytest.raises(ASRServiceError) as exc_info:
await asr_service.transcribe(mock_audio_file, "network_error.mp3")
# Verify error message
assert "语音识别服务不可用" in str(exc_info.value)
assert "网络错误" in str(exc_info.value)
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_transcribe_invalid_json_response(asr_service, mock_audio_file, mocker):
"""Test transcription when API returns invalid JSON.
Requirements: 2.3
"""
# Mock response with invalid JSON
mock_response = MagicMock()
mock_response.status_code = 200
mock_response.json.side_effect = ValueError("Invalid JSON")
# Mock the HTTP client post method
mocker.patch.object(
asr_service.client,
'post',
return_value=mock_response
)
# Call transcribe and expect exception
with pytest.raises(ASRServiceError) as exc_info:
await asr_service.transcribe(mock_audio_file, "invalid_json.mp3")
# Verify error message
assert "语音识别服务不可用" in str(exc_info.value)
assert "响应格式无效" in str(exc_info.value)
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_transcribe_missing_text_field(asr_service, mock_audio_file, mocker):
"""Test transcription when API response is missing text field.
Requirements: 2.3
"""
# Mock response without text field
mock_response = MagicMock()
mock_response.status_code = 200
mock_response.json.return_value = {
"id": "test_id",
"created": 1234567890,
"request_id": "test_request_id",
"model": "glm-asr-2512"
# Missing "text" field
}
# Mock the HTTP client post method
mocker.patch.object(
asr_service.client,
'post',
return_value=mock_response
)
# Call transcribe - should return empty string when text field is missing
result = await asr_service.transcribe(mock_audio_file, "missing_text.mp3")
# Verify result is empty string
assert result == ""
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_transcribe_unexpected_exception(asr_service, mock_audio_file, mocker):
"""Test transcription when unexpected exception occurs.
Requirements: 2.3
"""
# Mock unexpected exception
mocker.patch.object(
asr_service.client,
'post',
side_effect=Exception("Unexpected error")
)
# Call transcribe and expect exception
with pytest.raises(ASRServiceError) as exc_info:
await asr_service.transcribe(mock_audio_file, "unexpected.mp3")
# Verify error message
assert "语音识别服务不可用" in str(exc_info.value)
# Clean up
await asr_service.close()
@pytest.mark.asyncio
async def test_close_client(asr_service):
"""Test closing the HTTP client.
Requirements: 2.1
"""
# Verify client is open
assert not asr_service.client.is_closed
# Close the client
await asr_service.close()
# Verify client is closed
assert asr_service.client.is_closed
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