#!/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")