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"""
Integration tests for API endpoints.
"""
import json
import pytest
from unittest.mock import patch, MagicMock
from starlette.testclient import TestClient
from app.main import app
from tests.test_services import StubAsyncClient, StubAsyncResponse
client = TestClient(app)
@pytest.mark.integration
def test_summarize_endpoint_success(sample_text, mock_ollama_response):
"""Test successful summarization via API endpoint."""
stub_response = StubAsyncResponse(json_data=mock_ollama_response)
with patch('httpx.AsyncClient', return_value=StubAsyncClient(post_result=stub_response)):
resp = client.post(
"/api/v1/summarize/",
json={"text": sample_text, "max_tokens": 128}
)
assert resp.status_code == 200
data = resp.json()
assert data["summary"] == mock_ollama_response["response"]
assert data["model"]
@pytest.mark.integration
def test_summarize_endpoint_validation_error():
"""Test validation error for empty text."""
resp = client.post(
"/api/v1/summarize/",
json={"text": ""}
)
assert resp.status_code == 422
# Tests for Better Error Handling
@pytest.mark.integration
def test_summarize_endpoint_timeout_error():
"""Test that timeout errors return 504 Gateway Timeout instead of 502."""
import httpx
with patch('httpx.AsyncClient', return_value=StubAsyncClient(post_exc=httpx.TimeoutException("Timeout"))):
resp = client.post(
"/api/v1/summarize/",
json={"text": "Test text that will timeout"}
)
assert resp.status_code == 504 # Gateway Timeout
data = resp.json()
assert "timeout" in data["detail"].lower()
assert "text may be too long" in data["detail"].lower()
@pytest.mark.integration
def test_summarize_endpoint_http_error():
"""Test that HTTP errors return 502 Bad Gateway."""
import httpx
http_error = httpx.HTTPStatusError("Bad Request", request=MagicMock(), response=MagicMock())
with patch('httpx.AsyncClient', return_value=StubAsyncClient(post_exc=http_error)):
resp = client.post(
"/api/v1/summarize/",
json={"text": "Test text"}
)
assert resp.status_code == 502 # Bad Gateway
data = resp.json()
assert "Summarization failed" in data["detail"]
@pytest.mark.integration
def test_summarize_endpoint_unexpected_error():
"""Test that unexpected errors return 502 Bad Gateway (actual behavior)."""
with patch('httpx.AsyncClient', return_value=StubAsyncClient(post_exc=Exception("Unexpected error"))):
resp = client.post(
"/api/v1/summarize/",
json={"text": "Test text"}
)
assert resp.status_code == 502 # Bad Gateway (actual behavior)
data = resp.json()
assert "Summarization failed" in data["detail"]
@pytest.mark.integration
def test_summarize_endpoint_large_text_handling():
"""Test that large text requests are handled with appropriate timeout."""
large_text = "A" * 5000 # Large text that should trigger dynamic timeout
with patch('httpx.AsyncClient') as mock_client:
mock_client.return_value = StubAsyncClient(post_result=StubAsyncResponse())
resp = client.post(
"/api/v1/summarize/",
json={"text": large_text, "max_tokens": 256}
)
# Verify the client was called with extended timeout
mock_client.assert_called_once()
call_args = mock_client.call_args
# Timeout calculated with ORIGINAL text length (5000 chars): 30 + (5000-1000)//1000*3 = 30 + 12 = 42
expected_timeout = 30 + (5000 - 1000) // 1000 * 3 # 42 seconds
assert call_args[1]['timeout'] == expected_timeout
# Tests for Streaming Endpoint
@pytest.mark.integration
def test_summarize_stream_endpoint_success(sample_text):
"""Test successful streaming summarization via API endpoint."""
# Mock streaming response data
mock_stream_data = [
'{"response": "This", "done": false, "eval_count": 1}\n',
'{"response": " is", "done": false, "eval_count": 2}\n',
'{"response": " a", "done": false, "eval_count": 3}\n',
'{"response": " test", "done": true, "eval_count": 4}\n'
]
class MockStreamResponse:
def __init__(self, data):
self.data = data
async def aiter_lines(self):
for line in self.data:
yield line
def raise_for_status(self):
pass
class MockStreamContextManager:
def __init__(self, response):
self.response = response
async def __aenter__(self):
return self.response
async def __aexit__(self, exc_type, exc, tb):
return False
class MockStreamClient:
async def __aenter__(self):
return self
async def __aexit__(self, exc_type, exc, tb):
return False
def stream(self, method, url, **kwargs):
return MockStreamContextManager(MockStreamResponse(mock_stream_data))
with patch('httpx.AsyncClient', return_value=MockStreamClient()):
resp = client.post(
"/api/v1/summarize/stream",
json={"text": sample_text, "max_tokens": 128}
)
assert resp.status_code == 200
assert resp.headers["content-type"] == "text/event-stream; charset=utf-8"
# Parse SSE response
lines = resp.text.strip().split('\n')
data_lines = [line for line in lines if line.startswith('data: ')]
assert len(data_lines) == 4
# Parse first chunk
first_chunk = json.loads(data_lines[0][6:]) # Remove 'data: ' prefix
assert first_chunk["content"] == "This"
assert first_chunk["done"] is False
assert first_chunk["tokens_used"] == 1
# Parse last chunk
last_chunk = json.loads(data_lines[-1][6:]) # Remove 'data: ' prefix
assert last_chunk["content"] == " test"
assert last_chunk["done"] is True
assert last_chunk["tokens_used"] == 4
@pytest.mark.integration
def test_summarize_stream_endpoint_validation_error():
"""Test validation error for empty text in streaming endpoint."""
resp = client.post(
"/api/v1/summarize/stream",
json={"text": ""}
)
assert resp.status_code == 422
@pytest.mark.integration
def test_summarize_stream_endpoint_timeout_error():
"""Test that timeout errors in streaming return proper error."""
import httpx
class MockStreamClient:
async def __aenter__(self):
return self
async def __aexit__(self, exc_type, exc, tb):
return False
def stream(self, method, url, **kwargs):
raise httpx.TimeoutException("Timeout")
with patch('httpx.AsyncClient', return_value=MockStreamClient()):
resp = client.post(
"/api/v1/summarize/stream",
json={"text": "Test text that will timeout"}
)
assert resp.status_code == 200 # SSE returns 200 even with errors
assert resp.headers["content-type"] == "text/event-stream; charset=utf-8"
# Parse SSE response
lines = resp.text.strip().split('\n')
data_lines = [line for line in lines if line.startswith('data: ')]
assert len(data_lines) == 1
error_chunk = json.loads(data_lines[0][6:]) # Remove 'data: ' prefix
assert error_chunk["done"] is True
assert "timeout" in error_chunk["error"].lower()
@pytest.mark.integration
def test_summarize_stream_endpoint_http_error():
"""Test that HTTP errors in streaming return proper error."""
import httpx
http_error = httpx.HTTPStatusError("Bad Request", request=MagicMock(), response=MagicMock())
class MockStreamClient:
async def __aenter__(self):
return self
async def __aexit__(self, exc_type, exc, tb):
return False
def stream(self, method, url, **kwargs):
raise http_error
with patch('httpx.AsyncClient', return_value=MockStreamClient()):
resp = client.post(
"/api/v1/summarize/stream",
json={"text": "Test text"}
)
assert resp.status_code == 200 # SSE returns 200 even with errors
assert resp.headers["content-type"] == "text/event-stream; charset=utf-8"
# Parse SSE response
lines = resp.text.strip().split('\n')
data_lines = [line for line in lines if line.startswith('data: ')]
assert len(data_lines) == 1
error_chunk = json.loads(data_lines[0][6:]) # Remove 'data: ' prefix
assert error_chunk["done"] is True
assert "Summarization failed" in error_chunk["error"]
@pytest.mark.integration
def test_summarize_stream_endpoint_sse_format():
"""Test that streaming endpoint returns proper SSE format."""
mock_stream_data = ['{"response": "Summary", "done": true, "eval_count": 1}\n']
class MockStreamResponse:
def __init__(self, data):
self.data = data
async def aiter_lines(self):
for line in self.data:
yield line
def raise_for_status(self):
pass
class MockStreamContextManager:
def __init__(self, response):
self.response = response
async def __aenter__(self):
return self.response
async def __aexit__(self, exc_type, exc, tb):
return False
class MockStreamClient:
async def __aenter__(self):
return self
async def __aexit__(self, exc_type, exc, tb):
return False
def stream(self, method, url, **kwargs):
return MockStreamContextManager(MockStreamResponse(mock_stream_data))
with patch('httpx.AsyncClient', return_value=MockStreamClient()):
resp = client.post(
"/api/v1/summarize/stream",
json={"text": "Test text"}
)
assert resp.status_code == 200
assert resp.headers["content-type"] == "text/event-stream; charset=utf-8"
assert resp.headers["cache-control"] == "no-cache"
assert resp.headers["connection"] == "keep-alive"
# Check SSE format
lines = resp.text.strip().split('\n')
assert any(line.startswith('data: ') for line in lines) |