McRogueFace/tests/unit/test_pyarg_bug.py

73 lines
2.5 KiB
Python

#!/usr/bin/env python3
"""Test to confirm the PyArg bug in Grid constructor"""
import mcrfpy
print("Testing PyArg bug hypothesis...")
print("=" * 50)
# The bug theory: When Grid is created with keyword args grid_x=25, grid_y=15
# and the code takes the tuple parsing path, PyArg_ParseTupleAndKeywords
# at line 520 fails but doesn't check return value, leaving exception on stack
# Test 1: Create Grid with different argument patterns
print("Test 1: Grid with positional args")
try:
grid1 = mcrfpy.Grid(25, 15)
# Force Python to check for pending exceptions
_ = list(range(1))
print(" ✓ Grid(25, 15) works")
except Exception as e:
print(f" ✗ Grid(25, 15) failed: {type(e).__name__}: {e}")
print()
print("Test 2: Grid with keyword args (the failing case)")
try:
grid2 = mcrfpy.Grid(grid_x=25, grid_y=15)
# This should fail if exception is pending
_ = list(range(1))
print(" ✓ Grid(grid_x=25, grid_y=15) works")
except Exception as e:
print(f" ✗ Grid(grid_x=25, grid_y=15) failed: {type(e).__name__}: {e}")
print()
print("Test 3: Check if it's specific to the values 25, 15")
for x, y in [(24, 15), (25, 14), (25, 15), (26, 15), (25, 16)]:
try:
grid = mcrfpy.Grid(grid_x=x, grid_y=y)
_ = list(range(1))
print(f" ✓ Grid(grid_x={x}, grid_y={y}) works")
except Exception as e:
print(f" ✗ Grid(grid_x={x}, grid_y={y}) failed: {type(e).__name__}")
print()
print("Test 4: Mix positional and keyword args")
try:
# This might trigger different code path
grid3 = mcrfpy.Grid(25, grid_y=15)
_ = list(range(1))
print(" ✓ Grid(25, grid_y=15) works")
except Exception as e:
print(f" ✗ Grid(25, grid_y=15) failed: {type(e).__name__}: {e}")
print()
print("Test 5: Test with additional arguments")
try:
# This might help identify which PyArg call fails
grid4 = mcrfpy.Grid(grid_x=25, grid_y=15, pos=(0, 0))
_ = list(range(1))
print(" ✓ Grid with pos argument works")
except Exception as e:
print(f" ✗ Grid with pos failed: {type(e).__name__}: {e}")
try:
grid5 = mcrfpy.Grid(grid_x=25, grid_y=15, texture=None)
_ = list(range(1))
print(" ✓ Grid with texture=None works")
except Exception as e:
print(f" ✗ Grid with texture=None failed: {type(e).__name__}: {e}")
print()
print("Hypothesis: The bug is in UIGrid::init line 520-523")
print("PyArg_ParseTupleAndKeywords is called but return value not checked")
print("when parsing remaining arguments in tuple-based initialization path")