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"""
Unit tests for API routes.
"""
import pytest
import asyncio
from unittest.mock import Mock, patch, AsyncMock
from fastapi.testclient import TestClient
from fastapi import FastAPI
import sys
from pathlib import Path
# Add project root to path for imports
project_root = Path(__file__).parent.parent
sys.path.insert(0, str(project_root))
from src.routes.api import router, get_crossword_generator
from src.services.crossword_generator_wrapper import CrosswordGenerator
@pytest.fixture
def mock_vector_service():
"""Mock vector search service."""
mock_service = Mock()
mock_service.is_initialized = True
mock_service.find_similar_words = AsyncMock(return_value=[
{"word": "ELEPHANT", "clue": "Large mammal", "similarity": 0.8, "source": "vector_search"},
{"word": "TIGER", "clue": "Striped cat", "similarity": 0.7, "source": "vector_search"},
])
return mock_service
@pytest.fixture
def mock_crossword_generator():
"""Mock crossword generator."""
mock_gen = Mock(spec=CrosswordGenerator)
mock_gen.generate_puzzle = AsyncMock(return_value={
"grid": [["T", "E", "S", "T"], [".", ".", ".", "."]],
"clues": [
{
"number": 1,
"word": "TEST",
"text": "A test word",
"direction": "across",
"position": {"row": 0, "col": 0}
}
],
"metadata": {
"topics": ["Animals"],
"difficulty": "medium",
"wordCount": 1,
"size": 2,
"aiGenerated": True
}
})
mock_gen.generate_words_for_topics = AsyncMock(return_value=[
{"word": "ELEPHANT", "clue": "Large mammal", "similarity": 0.8, "source": "vector_search"},
{"word": "TIGER", "clue": "Striped cat", "similarity": 0.7, "source": "vector_search"},
])
return mock_gen
@pytest.fixture
def test_app(mock_vector_service):
"""Create test FastAPI app."""
app = FastAPI()
app.include_router(router, prefix="/api")
# Mock the app state
app.state.vector_service = mock_vector_service
return app
@pytest.fixture
def client(test_app):
"""Create test client."""
return TestClient(test_app)
class TestAPIRoutes:
"""Test cases for API routes."""
def test_get_topics(self, client):
"""Test GET /api/topics endpoint."""
response = client.get("/api/topics")
assert response.status_code == 200
topics = response.json()
assert len(topics) == 4
assert all("id" in topic and "name" in topic for topic in topics)
# Check specific topics
topic_ids = [topic["id"] for topic in topics]
assert "animals" in topic_ids
assert "geography" in topic_ids
assert "science" in topic_ids
assert "technology" in topic_ids
def test_generate_puzzle_success(self, client, mock_crossword_generator):
"""Test successful puzzle generation."""
with patch('src.routes.api.generator', mock_crossword_generator):
response = client.post("/api/generate", json={
"topics": ["Animals"],
"difficulty": "medium"
})
assert response.status_code == 200
puzzle = response.json()
assert "grid" in puzzle
assert "clues" in puzzle
assert "metadata" in puzzle
assert puzzle["metadata"]["topics"] == ["Animals"]
assert puzzle["metadata"]["difficulty"] == "medium"
assert puzzle["metadata"]["aiGenerated"] is True
def test_generate_puzzle_no_topics(self, client):
"""Test puzzle generation with no topics."""
response = client.post("/api/generate", json={
"topics": [],
"difficulty": "medium",
})
assert response.status_code == 400
assert "At least one topic is required" in response.json()["detail"]
def test_generate_puzzle_invalid_difficulty(self, client):
"""Test puzzle generation with invalid difficulty."""
response = client.post("/api/generate", json={
"topics": ["Animals"],
"difficulty": "impossible",
})
assert response.status_code == 400
assert "Invalid difficulty" in response.json()["detail"]
def test_generate_puzzle_generator_failure(self, client):
"""Test puzzle generation when generator fails."""
mock_gen = Mock(spec=CrosswordGenerator)
mock_gen.generate_puzzle = AsyncMock(return_value=None)
with patch('src.routes.api.generator', mock_gen):
response = client.post("/api/generate", json={
"topics": ["Animals"],
"difficulty": "medium"
})
assert response.status_code == 500
assert "Failed to generate puzzle" in response.json()["detail"]
def test_generate_puzzle_generator_exception(self, client):
"""Test puzzle generation when generator raises exception."""
mock_gen = Mock(spec=CrosswordGenerator)
mock_gen.generate_puzzle = AsyncMock(side_effect=Exception("Test error"))
with patch('src.routes.api.generator', mock_gen):
response = client.post("/api/generate", json={
"topics": ["Animals"],
"difficulty": "medium"
})
assert response.status_code == 500
assert "Test error" in response.json()["detail"]
def test_generate_words_success(self, client, mock_crossword_generator):
"""Test successful word generation."""
with patch('src.routes.api.generator', mock_crossword_generator):
response = client.post("/api/words", json={
"topics": ["Animals"],
"difficulty": "medium"
})
assert response.status_code == 200
result = response.json()
assert result["topics"] == ["Animals"]
assert result["difficulty"] == "medium"
assert "wordCount" in result
assert "words" in result
assert len(result["words"]) > 0
def test_generate_words_failure(self, client):
"""Test word generation failure."""
mock_gen = Mock(spec=CrosswordGenerator)
mock_gen.generate_words_for_topics = AsyncMock(side_effect=Exception("Word generation failed"))
with patch('src.routes.api.generator', mock_gen):
response = client.post("/api/words", json={
"topics": ["Animals"],
"difficulty": "medium"
})
assert response.status_code == 500
assert "Word generation failed" in response.json()["detail"]
def test_api_health(self, client):
"""Test API health check."""
response = client.get("/api/health")
assert response.status_code == 200
health = response.json()
assert health["status"] == "healthy"
assert health["backend"] == "python"
assert health["version"] == "2.0.0"
assert "timestamp" in health
def test_debug_vector_search_success(self, client, mock_vector_service):
"""Test debug vector search endpoint."""
response = client.get("/api/debug/vector-search?topic=Animals&difficulty=medium&max_words=5")
assert response.status_code == 200
result = response.json()
assert result["topic"] == "Animals"
assert result["difficulty"] == "medium"
assert result["max_words"] == 5
assert "found_words" in result
assert "words" in result
def test_debug_vector_search_service_unavailable(self, client):
"""Test debug vector search when service unavailable."""
# Create app without vector service
app = FastAPI()
app.include_router(router, prefix="/api")
app.state.vector_service = None
with TestClient(app) as test_client:
response = test_client.get("/api/debug/vector-search?topic=Animals")
assert response.status_code == 503
assert "Vector search service not available" in response.json()["detail"]
def test_debug_vector_search_not_initialized(self, client):
"""Test debug vector search when service not initialized."""
mock_service = Mock()
mock_service.is_initialized = False
# Create app with uninitialized service
app = FastAPI()
app.include_router(router, prefix="/api")
app.state.vector_service = mock_service
with TestClient(app) as test_client:
response = test_client.get("/api/debug/vector-search?topic=Animals")
assert response.status_code == 503
assert "Vector search service not available" in response.json()["detail"]
def test_debug_vector_search_failure(self, client, mock_vector_service):
"""Test debug vector search when search fails."""
mock_vector_service.find_similar_words = AsyncMock(side_effect=Exception("Search failed"))
response = client.get("/api/debug/vector-search?topic=Animals")
assert response.status_code == 500
assert "Search failed" in response.json()["detail"]
def test_get_crossword_generator_dependency(self, mock_vector_service):
"""Test the crossword generator dependency."""
# Mock request with vector service
mock_request = Mock()
mock_request.app.state.vector_service = mock_vector_service
with patch('src.routes.api.generator', None): # Reset global generator
generator = get_crossword_generator(mock_request)
assert isinstance(generator, CrosswordGenerator)
assert generator.vector_service == mock_vector_service
def test_request_validation(self, client):
"""Test request model validation."""
# Test missing required fields
response = client.post("/api/generate", json={})
assert response.status_code == 422 # Validation error
# Test invalid field types
response = client.post("/api/generate", json={
"topics": "not_a_list",
"difficulty": "medium",
})
assert response.status_code == 422 # Validation error
def test_default_values(self, client, mock_crossword_generator):
"""Test request model default values."""
with patch('src.routes.api.generator', mock_crossword_generator):
response = client.post("/api/generate", json={
"topics": ["Animals"]
# difficulty should use defaults
})
assert response.status_code == 200
# Check that defaults were used
mock_crossword_generator.generate_puzzle.assert_called_once_with(
topics=["Animals"],
difficulty="medium", # Default value
)
if __name__ == "__main__":
pytest.main([__file__, "-v"]) |