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"""
Tests for API endpoints and WebSocket functionality.
"""
import pytest
import json
import base64
from unittest.mock import Mock, patch, MagicMock
from fastapi.testclient import TestClient
import numpy as np
import cv2
from api.api_server import app, ProcessingRequest, ProcessingResponse
from api.websocket import WebSocketHandler, WSMessage, MessageType
class TestAPIEndpoints:
"""Test REST API endpoints."""
@pytest.fixture
def client(self):
"""Create test client."""
return TestClient(app)
@pytest.fixture
def auth_headers(self):
"""Create authentication headers."""
# Mock authentication for testing
return {"Authorization": "Bearer test-token"}
def test_root_endpoint(self, client):
"""Test root endpoint."""
response = client.get("/")
assert response.status_code == 200
data = response.json()
assert "name" in data
assert data["name"] == "BackgroundFX Pro API"
def test_health_check(self, client):
"""Test health check endpoint."""
response = client.get("/health")
assert response.status_code == 200
data = response.json()
assert data["status"] == "healthy"
assert "services" in data
@patch('api.api_server.verify_token')
def test_process_image_endpoint(self, mock_verify, client, auth_headers, sample_image):
"""Test image processing endpoint."""
mock_verify.return_value = "test-user"
# Create test image file
_, buffer = cv2.imencode('.jpg', sample_image)
files = {"file": ("test.jpg", buffer.tobytes(), "image/jpeg")}
data = {
"background": "blur",
"quality": "high"
}
with patch('api.api_server.process_image_task'):
response = client.post(
"/api/v1/process/image",
headers=auth_headers,
files=files,
data=data
)
assert response.status_code == 200
result = response.json()
assert "job_id" in result
assert result["status"] == "processing"
@patch('api.api_server.verify_token')
def test_process_video_endpoint(self, mock_verify, client, auth_headers, sample_video):
"""Test video processing endpoint."""
mock_verify.return_value = "test-user"
with open(sample_video, 'rb') as f:
files = {"file": ("test.mp4", f.read(), "video/mp4")}
data = {
"background": "office",
"quality": "medium"
}
with patch('api.api_server.process_video_task'):
response = client.post(
"/api/v1/process/video",
headers=auth_headers,
files=files,
data=data
)
assert response.status_code == 200
result = response.json()
assert "job_id" in result
@patch('api.api_server.verify_token')
def test_batch_processing_endpoint(self, mock_verify, client, auth_headers):
"""Test batch processing endpoint."""
mock_verify.return_value = "test-user"
batch_request = {
"items": [
{"id": "1", "input_path": "/tmp/img1.jpg", "output_path": "/tmp/out1.jpg"},
{"id": "2", "input_path": "/tmp/img2.jpg", "output_path": "/tmp/out2.jpg"}
],
"parallel": True,
"priority": "normal"
}
with patch('api.api_server.process_batch_task'):
response = client.post(
"/api/v1/batch",
headers=auth_headers,
json=batch_request
)
assert response.status_code == 200
result = response.json()
assert "job_id" in result
@patch('api.api_server.verify_token')
def test_job_status_endpoint(self, mock_verify, client, auth_headers):
"""Test job status endpoint."""
mock_verify.return_value = "test-user"
job_id = "test-job-123"
with patch.object(app.state.job_manager, 'get_job') as mock_get:
mock_get.return_value = ProcessingResponse(
job_id=job_id,
status="completed",
progress=1.0
)
response = client.get(
f"/api/v1/job/{job_id}",
headers=auth_headers
)
assert response.status_code == 200
result = response.json()
assert result["job_id"] == job_id
assert result["status"] == "completed"
@patch('api.api_server.verify_token')
def test_streaming_endpoints(self, mock_verify, client, auth_headers):
"""Test streaming endpoints."""
mock_verify.return_value = "test-user"
# Start stream
stream_request = {
"source": "0",
"stream_type": "webcam",
"output_format": "hls"
}
with patch.object(app.state.video_processor, 'start_stream_processing') as mock_start:
mock_start.return_value = True
response = client.post(
"/api/v1/stream/start",
headers=auth_headers,
json=stream_request
)
assert response.status_code == 200
result = response.json()
assert result["status"] == "streaming"
# Stop stream
with patch.object(app.state.video_processor, 'stop_stream_processing'):
response = client.get(
"/api/v1/stream/stop",
headers=auth_headers
)
assert response.status_code == 200
class TestWebSocket:
"""Test WebSocket functionality."""
@pytest.fixture
def ws_handler(self):
"""Create WebSocket handler."""
return WebSocketHandler()
def test_websocket_connection(self, ws_handler, mock_websocket):
"""Test WebSocket connection handling."""
# Test connection acceptance
async def test_connect():
await ws_handler.handle_connection(mock_websocket)
# Would need async test runner for full test
assert mock_websocket.accept.called or True # Simplified for sync test
def test_message_parsing(self, ws_handler):
"""Test WebSocket message parsing."""
message_data = {
"type": "process_frame",
"data": {"frame": "base64_data"}
}
message = WSMessage.from_dict(message_data)
assert message.type == MessageType.PROCESS_FRAME
assert message.data["frame"] == "base64_data"
def test_frame_encoding_decoding(self, ws_handler, sample_image):
"""Test frame encoding and decoding."""
# Encode frame
_, buffer = cv2.imencode('.jpg', sample_image)
encoded = base64.b64encode(buffer).decode('utf-8')
# Decode frame
decoded = ws_handler.frame_processor._decode_frame(encoded)
assert decoded is not None
assert decoded.shape == sample_image.shape
def test_session_management(self, ws_handler):
"""Test client session management."""
mock_ws = MagicMock()
# Add session
async def test_add():
session = await ws_handler.session_manager.add_session(mock_ws, "test-client")
assert session.client_id == "test-client"
# Would need async test runner for full test
assert ws_handler.session_manager is not None
def test_message_routing(self, ws_handler):
"""Test message routing."""
messages = [
WSMessage(type=MessageType.PING, data={}),
WSMessage(type=MessageType.UPDATE_CONFIG, data={"quality": "high"}),
WSMessage(type=MessageType.START_STREAM, data={"source": 0})
]
for msg in messages:
assert msg.type in MessageType
assert isinstance(msg.to_dict(), dict)
def test_statistics_tracking(self, ws_handler):
"""Test WebSocket statistics."""
stats = ws_handler.get_statistics()
assert "uptime" in stats
assert "total_connections" in stats
assert "active_connections" in stats
assert "total_frames_processed" in stats
class TestAPIIntegration:
"""Integration tests for API."""
@pytest.mark.integration
def test_full_image_processing_flow(self, client, sample_image, temp_dir):
"""Test complete image processing flow."""
# Skip authentication for integration test
with patch('api.api_server.verify_token', return_value="test-user"):
# Upload image
_, buffer = cv2.imencode('.jpg', sample_image)
files = {"file": ("test.jpg", buffer.tobytes(), "image/jpeg")}
response = client.post(
"/api/v1/process/image",
files=files,
data={"background": "blur", "quality": "low"}
)
assert response.status_code == 200
job_data = response.json()
job_id = job_data["job_id"]
# Check job status
response = client.get(f"/api/v1/job/{job_id}")
# Would need actual processing for full test
assert response.status_code in [200, 404]
@pytest.mark.integration
@pytest.mark.slow
def test_concurrent_requests(self, client):
"""Test handling concurrent requests."""
import concurrent.futures
def make_request():
response = client.get("/health")
return response.status_code
with concurrent.futures.ThreadPoolExecutor(max_workers=10) as executor:
futures = [executor.submit(make_request) for _ in range(10)]
results = [f.result() for f in concurrent.futures.as_completed(futures)]
assert all(status == 200 for status in results)
@pytest.mark.integration
def test_error_handling(self, client):
"""Test API error handling."""
# Test invalid endpoint
response = client.get("/api/v1/invalid")
assert response.status_code == 404
# Test missing authentication
response = client.get("/api/v1/stats")
assert response.status_code in [401, 422] # Unauthorized or validation error
# Test invalid file format
with patch('api.api_server.verify_token', return_value="test-user"):
files = {"file": ("test.txt", b"text content", "text/plain")}
response = client.post(
"/api/v1/process/image",
files=files,
headers={"Authorization": "Bearer test"}
)
assert response.status_code == 400
class TestAPIPerformance:
"""Performance tests for API."""
@pytest.mark.slow
def test_response_time(self, client, performance_timer):
"""Test API response times."""
endpoints = ["/", "/health"]
for endpoint in endpoints:
with performance_timer as timer:
response = client.get(endpoint)
assert response.status_code == 200
assert timer.elapsed < 0.1 # Should respond in under 100ms
@pytest.mark.slow
def test_file_upload_performance(self, client, performance_timer):
"""Test file upload performance."""
# Create a 1MB test file
large_data = np.random.randint(0, 255, (1024, 1024, 3), dtype=np.uint8)
_, buffer = cv2.imencode('.jpg', large_data)
with patch('api.api_server.verify_token', return_value="test-user"):
with patch('api.api_server.process_image_task'):
with performance_timer as timer:
response = client.post(
"/api/v1/process/image",
files={"file": ("large.jpg", buffer.tobytes(), "image/jpeg")},
headers={"Authorization": "Bearer test"}
)
assert response.status_code == 200
assert timer.elapsed < 2.0 # Should handle 1MB in under 2 seconds |