KI-Chat-Bot-Eugen/tests/test_ai_provider.py
Claude f6813b5fa5
Add comprehensive test suite with 97% code coverage
Implemented full test coverage for core bot components:

Test Coverage:
- MentionDetector: 98% (28 tests) - mention detection, nickname handling, content extraction
- Logger: 98% (15 tests) - file logging, log levels, unicode support
- ConversationMemory: 91% (25 tests) - history management, time filtering, JSON persistence
- PerplexityProvider: 100% (22 tests) - API calls, error handling, statistics
- Config: 100% (26 tests) - env loading, validation, JSON config

Infrastructure:
- Added pytest, pytest-asyncio, pytest-mock, pytest-cov to requirements.txt
- Created pytest.ini with coverage configuration
- Created .coveragerc to exclude non-production files
- Added conftest.py with shared fixtures and test isolation

Test Features:
- 116 total tests, all passing
- Isolated test environment (clean env vars, logging handlers)
- Async testing support for PerplexityProvider
- Mocked HTTP requests to avoid real API calls
- Comprehensive edge case coverage
- Unicode/German character support testing

Total: 97% code coverage across 273 statements
2026-01-02 22:10:14 +00:00

416 lines
16 KiB
Python

"""
Tests for PerplexityProvider AI API class
"""
import pytest
import httpx
from unittest.mock import AsyncMock, Mock, patch
from ai_provider import PerplexityProvider
class TestPerplexityProvider:
"""Test PerplexityProvider functionality"""
def test_init_sets_attributes(self):
"""Test that initialization sets all attributes correctly"""
provider = PerplexityProvider(
api_key="test-key",
model="sonar-pro",
max_tokens=450,
temperature=0.7
)
assert provider.api_key == "test-key"
assert provider.model == "sonar-pro"
assert provider.max_tokens == 450
assert provider.temperature == 0.7
assert provider.base_url == "https://api.perplexity.ai"
def test_init_default_values(self):
"""Test default parameter values"""
provider = PerplexityProvider(api_key="test-key")
assert provider.model == "sonar-pro"
assert provider.max_tokens == 450
assert provider.temperature == 0.7
def test_init_statistics_start_at_zero(self):
"""Test that statistics counters start at zero"""
provider = PerplexityProvider(api_key="test-key")
assert provider.total_requests == 0
assert provider.total_tokens == 0
assert provider.total_errors == 0
assert provider.last_response_time == 0
@pytest.mark.asyncio
async def test_get_response_success(self, sample_messages, mock_perplexity_response):
"""Test successful API response"""
provider = PerplexityProvider(api_key="test-key")
# Mock the HTTP client
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = mock_perplexity_response
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
# Call the method
result = await provider.get_response(sample_messages)
# Verify result
assert result == "This is a test response from the AI."
assert provider.total_requests == 1
assert provider.total_tokens == 70 # From mock response
assert provider.total_errors == 0
@pytest.mark.asyncio
async def test_get_response_constructs_correct_payload(self, sample_messages):
"""Test that request payload is constructed correctly"""
provider = PerplexityProvider(
api_key="test-key",
model="sonar-pro",
max_tokens=450,
temperature=0.7
)
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {
"choices": [{"message": {"content": "test"}}],
"usage": {"total_tokens": 10}
}
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
await provider.get_response(sample_messages)
# Verify the call was made with correct parameters
call_args = mock_post.call_args
assert call_args[1]["json"]["model"] == "sonar-pro"
assert call_args[1]["json"]["messages"] == sample_messages
assert call_args[1]["json"]["max_tokens"] == 450
assert call_args[1]["json"]["temperature"] == 0.7
@pytest.mark.asyncio
async def test_get_response_includes_auth_header(self, sample_messages):
"""Test that Authorization header is included"""
provider = PerplexityProvider(api_key="test-secret-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {
"choices": [{"message": {"content": "test"}}],
"usage": {"total_tokens": 10}
}
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
await provider.get_response(sample_messages)
call_args = mock_post.call_args
headers = call_args[1]["headers"]
assert headers["Authorization"] == "Bearer test-secret-key"
assert headers["Content-Type"] == "application/json"
@pytest.mark.asyncio
async def test_get_response_handles_401_error(self, sample_messages):
"""Test handling of 401 Unauthorized error"""
provider = PerplexityProvider(api_key="invalid-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 401
mock_response.text = "Unauthorized"
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
result = await provider.get_response(sample_messages)
assert result is None
assert provider.total_errors == 1
assert provider.total_requests == 0 # Failed requests don't count
@pytest.mark.asyncio
async def test_get_response_handles_500_error(self, sample_messages):
"""Test handling of 500 server error"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 500
mock_response.text = "Internal Server Error"
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
result = await provider.get_response(sample_messages)
assert result is None
assert provider.total_errors == 1
@pytest.mark.asyncio
async def test_get_response_handles_timeout(self, sample_messages):
"""Test handling of request timeout"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
mock_post = AsyncMock(side_effect=httpx.TimeoutException("Timeout"))
mock_client.return_value.__aenter__.return_value.post = mock_post
result = await provider.get_response(sample_messages)
assert result is None
assert provider.total_errors == 1
@pytest.mark.asyncio
async def test_get_response_handles_network_error(self, sample_messages):
"""Test handling of network errors"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
mock_post = AsyncMock(side_effect=httpx.NetworkError("Network error"))
mock_client.return_value.__aenter__.return_value.post = mock_post
result = await provider.get_response(sample_messages)
assert result is None
assert provider.total_errors == 1
@pytest.mark.asyncio
async def test_get_response_tracks_response_time(self, sample_messages, mock_perplexity_response):
"""Test that response time is tracked"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = mock_perplexity_response
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
await provider.get_response(sample_messages)
assert provider.last_response_time > 0
@pytest.mark.asyncio
async def test_validate_api_key_success(self):
"""Test successful API key validation"""
provider = PerplexityProvider(api_key="valid-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 200
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
result = await provider.validate_api_key()
assert result is True
@pytest.mark.asyncio
async def test_validate_api_key_failure(self):
"""Test failed API key validation"""
provider = PerplexityProvider(api_key="invalid-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 401
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
result = await provider.validate_api_key()
assert result is False
@pytest.mark.asyncio
async def test_validate_api_key_handles_exception(self):
"""Test API key validation handles exceptions"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
mock_post = AsyncMock(side_effect=Exception("Network error"))
mock_client.return_value.__aenter__.return_value.post = mock_post
result = await provider.validate_api_key()
assert result is False
@pytest.mark.asyncio
async def test_validate_api_key_uses_minimal_request(self):
"""Test that validation uses minimal tokens"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 200
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
await provider.validate_api_key()
call_args = mock_post.call_args
payload = call_args[1]["json"]
assert payload["max_tokens"] == 10 # Minimal tokens
assert payload["messages"][0]["content"] == "test"
def test_get_statistics_initial_state(self):
"""Test statistics in initial state"""
provider = PerplexityProvider(api_key="test-key")
stats = provider.get_statistics()
assert stats["total_requests"] == 0
assert stats["total_tokens"] == 0
assert stats["total_errors"] == 0
assert stats["avg_response_time"] == 0
assert stats["success_rate"] == 0
assert stats["estimated_cost"] == 0
@pytest.mark.asyncio
async def test_get_statistics_after_requests(self, sample_messages, mock_perplexity_response):
"""Test statistics after successful requests"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = mock_perplexity_response
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
# Make 2 successful requests
await provider.get_response(sample_messages)
await provider.get_response(sample_messages)
stats = provider.get_statistics()
assert stats["total_requests"] == 2
assert stats["total_tokens"] == 140 # 70 * 2
assert stats["total_errors"] == 0
assert stats["success_rate"] == 100
assert stats["estimated_cost"] > 0
@pytest.mark.asyncio
async def test_get_statistics_with_errors(self, sample_messages):
"""Test statistics calculation with errors"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
# First request succeeds
mock_response_success = Mock()
mock_response_success.status_code = 200
mock_response_success.json.return_value = {
"choices": [{"message": {"content": "test"}}],
"usage": {"total_tokens": 50}
}
# Second request fails
mock_response_fail = Mock()
mock_response_fail.status_code = 500
mock_response_fail.text = "Error"
mock_post = AsyncMock(side_effect=[mock_response_success, mock_response_fail])
mock_client.return_value.__aenter__.return_value.post = mock_post
await provider.get_response(sample_messages)
await provider.get_response(sample_messages)
stats = provider.get_statistics()
assert stats["total_requests"] == 1
assert stats["total_errors"] == 1
assert stats["success_rate"] == 0 # 0 out of 1 completed request succeeded
def test_reset_statistics(self):
"""Test resetting statistics"""
provider = PerplexityProvider(api_key="test-key")
# Manually set some statistics
provider.total_requests = 10
provider.total_tokens = 500
provider.total_errors = 2
provider.last_response_time = 1.5
provider.reset_statistics()
assert provider.total_requests == 0
assert provider.total_tokens == 0
assert provider.total_errors == 0
assert provider.last_response_time == 0
@pytest.mark.asyncio
async def test_get_response_missing_usage_data(self, sample_messages):
"""Test handling response without usage data"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {
"choices": [{"message": {"content": "test response"}}]
# No usage field
}
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
result = await provider.get_response(sample_messages)
assert result == "test response"
assert provider.total_tokens == 0 # Should default to 0
@pytest.mark.asyncio
async def test_get_response_uses_correct_endpoint(self, sample_messages):
"""Test that correct API endpoint is used"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client:
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {
"choices": [{"message": {"content": "test"}}],
"usage": {"total_tokens": 10}
}
mock_post = AsyncMock(return_value=mock_response)
mock_client.return_value.__aenter__.return_value.post = mock_post
await provider.get_response(sample_messages)
call_args = mock_post.call_args
# First positional argument should be the URL
assert call_args[0][0] == "https://api.perplexity.ai/chat/completions"
@pytest.mark.asyncio
async def test_get_response_timeout_configuration(self, sample_messages):
"""Test that timeout is configured correctly"""
provider = PerplexityProvider(api_key="test-key")
with patch('httpx.AsyncClient') as mock_client_class:
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {
"choices": [{"message": {"content": "test"}}],
"usage": {"total_tokens": 10}
}
mock_post = AsyncMock(return_value=mock_response)
mock_client_class.return_value.__aenter__.return_value.post = mock_post
await provider.get_response(sample_messages)
# Check that AsyncClient was instantiated with timeout
call_args = mock_client_class.call_args
assert call_args[1]["timeout"] == 30.0