McRogueFace/tests/issue_12_gridpoint_instanti...

136 lines
4.7 KiB
Python

#!/usr/bin/env python3
"""
Test for Issue #12: Forbid GridPoint/GridPointState instantiation
This test verifies that GridPoint and GridPointState cannot be instantiated
directly from Python, as they should only be created internally by the C++ code.
"""
import mcrfpy
import sys
def test_gridpoint_instantiation():
"""Test that GridPoint and GridPointState cannot be instantiated"""
print("=== Testing GridPoint/GridPointState Instantiation Prevention (Issue #12) ===\n")
tests_passed = 0
tests_total = 0
# Test 1: Try to instantiate GridPoint
print("--- Test 1: GridPoint instantiation ---")
tests_total += 1
try:
point = mcrfpy.GridPoint()
print("✗ FAIL: GridPoint() should not be allowed")
except TypeError as e:
print(f"✓ PASS: GridPoint instantiation correctly prevented: {e}")
tests_passed += 1
except Exception as e:
print(f"✗ FAIL: Unexpected error: {e}")
# Test 2: Try to instantiate GridPointState
print("\n--- Test 2: GridPointState instantiation ---")
tests_total += 1
try:
state = mcrfpy.GridPointState()
print("✗ FAIL: GridPointState() should not be allowed")
except TypeError as e:
print(f"✓ PASS: GridPointState instantiation correctly prevented: {e}")
tests_passed += 1
except Exception as e:
print(f"✗ FAIL: Unexpected error: {e}")
# Test 3: Verify GridPoint can still be obtained from Grid
print("\n--- Test 3: GridPoint obtained from Grid.at() ---")
tests_total += 1
try:
grid = mcrfpy.Grid(10, 10)
point = grid.at(5, 5)
print(f"✓ PASS: GridPoint obtained from Grid.at(): {point}")
print(f" Type: {type(point).__name__}")
tests_passed += 1
except Exception as e:
print(f"✗ FAIL: Could not get GridPoint from Grid: {e}")
# Test 4: Verify GridPointState can still be obtained from GridPoint
print("\n--- Test 4: GridPointState obtained from GridPoint ---")
tests_total += 1
try:
# GridPointState is accessed through GridPoint's click handler
# Let's check if we can access point properties that would use GridPointState
if hasattr(point, 'walkable'):
print(f"✓ PASS: GridPoint has expected properties")
print(f" walkable: {point.walkable}")
print(f" transparent: {point.transparent}")
tests_passed += 1
else:
print("✗ FAIL: GridPoint missing expected properties")
except Exception as e:
print(f"✗ FAIL: Error accessing GridPoint properties: {e}")
# Test 5: Try to call the types directly (alternative syntax)
print("\n--- Test 5: Alternative instantiation attempts ---")
tests_total += 1
all_prevented = True
# Try various ways to instantiate
attempts = [
("mcrfpy.GridPoint.__new__(mcrfpy.GridPoint)",
lambda: mcrfpy.GridPoint.__new__(mcrfpy.GridPoint)),
("type(point)()",
lambda: type(point)() if 'point' in locals() else None),
]
for desc, func in attempts:
try:
if func:
result = func()
print(f"✗ FAIL: {desc} should not be allowed")
all_prevented = False
except (TypeError, AttributeError) as e:
print(f" ✓ Correctly prevented: {desc}")
except Exception as e:
print(f" ? Unexpected error for {desc}: {e}")
if all_prevented:
print("✓ PASS: All alternative instantiation attempts prevented")
tests_passed += 1
else:
print("✗ FAIL: Some instantiation attempts succeeded")
# Summary
print(f"\n=== SUMMARY ===")
print(f"Tests passed: {tests_passed}/{tests_total}")
if tests_passed == tests_total:
print("\nIssue #12 FIXED: GridPoint/GridPointState instantiation properly forbidden!")
else:
print("\nIssue #12: Some tests failed")
return tests_passed == tests_total
def run_test(runtime):
"""Timer callback to run the test"""
try:
# First verify the types exist
print("Checking that GridPoint and GridPointState types exist...")
print(f"GridPoint type: {mcrfpy.GridPoint}")
print(f"GridPointState type: {mcrfpy.GridPointState}")
print()
success = test_gridpoint_instantiation()
print("\nOverall result: " + ("PASS" if success else "FAIL"))
except Exception as e:
print(f"\nTest error: {e}")
import traceback
traceback.print_exc()
print("\nOverall result: FAIL")
sys.exit(0)
# Set up the test scene
mcrfpy.createScene("test")
mcrfpy.setScene("test")
# Schedule test to run after game loop starts
mcrfpy.setTimer("test", run_test, 100)