Cycles

Cargo.toml

@@ -6,6 +6,9 @@ edition = "2021"
 [dependencies]
 sdl2 = "0.34.0"
 rand = "=0.7.3"
+lazy_static = "1.5.0"
+log = "0.4"
+env_logger = "0.10"
 
 [dependencies.bitflags]
 version = "2.8.0"

compare_nes.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+import subprocess
+import sys
+import os
+
+# Start the emulator
+emulator = subprocess.Popen(["cargo", "run"], stdout=subprocess.PIPE, text=True)
+
+# Read expected output
+with open('exact.txt', 'r') as f:
+    expected_lines = [line.rstrip() for line in f]
+
+# Process output in real-time
+line_num = 0
+with open('output.txt.part', 'w') as out_file:
+    for line in emulator.stdout:
+        line = line.rstrip()
+        out_file.write(line + '\n')
+
+        # Compare with expected line
+        if line_num >= len(expected_lines) or line != expected_lines[line_num]:
+            print(f"\n🔴 Difference found at line {line_num+1}:")
+            print(f"Expected: '{expected_lines[line_num] if line_num < len(expected_lines) else 'EOF'}'")
+            print(f"Got:      '{line}'")
+
+            # Kill the emulator
+            emulator.terminate()
+
+            # Show context
+            print("\n=== Context ===")
+            start_line = max(0, line_num - 2)
+            end_line = min(len(expected_lines), line_num + 3)
+            print(f"Expected (lines {start_line+1}-{end_line}):")
+            for i in range(start_line, end_line):
+                if i < len(expected_lines):
+                    print(f"{i+1}: {expected_lines[i]}")
+            print(f"Your output (lines {start_line+1}-{end_line}):")
+            out_file.flush()
+
+            with open('output.txt.part', 'r') as partial_out:
+                output_lines = [l.rstrip() for l in partial_out]
+                for i in range(start_line, end_line):
+                    if i < len(output_lines):
+                        print(f"{i+1}: {output_lines[i]}")
+            os.rename('output.txt.part', 'output.txt')
+            sys.exit(1)
+
+        line_num += 1
+
+# Success
+os.rename('output.txt.part', 'output.txt')
+print("✓ No differences found! Test passed.")
+sys.exit(0)