fastapi/tests/test_variable_shadowing_fix.py

94 lines
3.3 KiB
Python

"""Simple verification that the routing.py changes are syntactically correct"""
import ast
import sys
def check_syntax(filepath):
"""Check if Python file has valid syntax"""
try:
with open(filepath, 'r', encoding='utf-8') as f:
code = f.read()
ast.parse(code)
return True, "Syntax OK"
except SyntaxError as e:
return False, f"Syntax Error: {e}"
def check_no_shadowing(filepath):
"""Check that we fixed the variable shadowing issue"""
with open(filepath, 'r', encoding='utf-8') as f:
content = f.read()
# Check that inner_app exists (our fix)
if 'async def inner_app(scope: Scope, receive: Receive, send: Send)' in content:
inner_app_count = content.count('async def inner_app(scope: Scope, receive: Receive, send: Send)')
if inner_app_count >= 2: # Should be in both functions
return True, f"✓ Found {inner_app_count} instances of 'inner_app' (expected 2)"
else:
return False, f"✗ Found only {inner_app_count} instances of 'inner_app'"
else:
return False, "'inner_app' not found - fix not applied"
def check_wrap_app_handling_exceptions(filepath):
"""Check that wrap_app_handling_exceptions uses inner_app not app"""
with open(filepath, 'r', encoding='utf-8') as f:
content = f.read()
# Check request_response function
lines = content.split('\n')
found_request_response = False
found_correct_usage = False
for i, line in enumerate(lines):
if 'def request_response(' in line:
found_request_response = True
if found_request_response and 'await wrap_app_handling_exceptions(inner_app, request)' in line:
found_correct_usage = True
break
if not found_correct_usage:
return False, "✗ wrap_app_handling_exceptions still uses 'app' instead of 'inner_app'"
return True, "✓ wrap_app_handling_exceptions correctly uses 'inner_app'"
if __name__ == "__main__":
filepath = "fastapi/routing.py"
print("=" * 70)
print("Verifying Variable Shadowing Fix in routing.py")
print("=" * 70)
print()
# Test 1: Syntax check
print("1. Checking Python syntax...")
success, message = check_syntax(filepath)
print(f" {message}")
if not success:
sys.exit(1)
# Test 2: Check inner_app exists
print("\n2. Checking for 'inner_app' function...")
success, message = check_no_shadowing(filepath)
print(f" {message}")
if not success:
sys.exit(1)
# Test 3: Check wrap_app_handling_exceptions usage
print("\n3. Checking wrap_app_handling_exceptions usage...")
success, message = check_wrap_app_handling_exceptions(filepath)
print(f" {message}")
if not success:
sys.exit(1)
print()
print("=" * 70)
print("✅ ALL CHECKS PASSED - Variable shadowing fix is correct!")
print("=" * 70)
print()
print("Summary of changes:")
print(" • Renamed nested 'app' to 'inner_app' in request_response()")
print(" • Renamed nested 'app' to 'inner_app' in websocket_session()")
print(" • Updated wrap_app_handling_exceptions calls to use 'inner_app'")
print()
print("This fix eliminates variable shadowing and improves code clarity")
print("without changing any functionality.")