Patched test_line_endings_edge_cases.py

Author: patched.codes[bot]

test_line_endings_edge_cases.py

@@ -0,0 +1,58 @@
+from patchwork.common.utils.utils import open_with_chardet
+
+def test_empty_file():
+    # Test empty file
+    with open('test_empty.txt', 'wb') as f:
+        f.write(b'')
+    
+    with open_with_chardet('test_empty.txt', 'r') as f:
+        content = f.read()
+    
+    with open('test_empty_out.txt', 'w') as f:
+        f.write(content)
+        
+    with open('test_empty.txt', 'rb') as f1, open('test_empty_out.txt', 'rb') as f2:
+        assert f1.read() == f2.read(), "Empty file test failed"
+    print("Empty file test passed")
+
+def test_mixed_endings():
+    # Test file with mixed line endings
+    with open('test_mixed.txt', 'wb') as f:
+        f.write(b'line1\n')  # LF
+        f.write(b'line2\r\n')  # CRLF
+        f.write(b'line3\n')  # LF
+        
+    with open_with_chardet('test_mixed.txt', 'r') as f:
+        content = f.read()
+    
+    with open('test_mixed_out.txt', 'w') as f:
+        f.write(content)
+        
+    with open('test_mixed.txt', 'rb') as f1, open('test_mixed_out.txt', 'rb') as f2:
+        orig = f1.read()
+        mod = f2.read()
+        assert orig == mod, f"Mixed endings test failed:\nOriginal: {orig}\nModified: {mod}"
+    print("Mixed endings test passed")
+
+def test_no_final_newline():
+    # Test file without final newline
+    with open('test_no_final.txt', 'wb') as f:
+        f.write(b'line1\r\nline2\r\nline3')  # No final newline
+        
+    with open_with_chardet('test_no_final.txt', 'r') as f:
+        content = f.read()
+    
+    with open('test_no_final_out.txt', 'w') as f:
+        f.write(content)
+        
+    with open('test_no_final.txt', 'rb') as f1, open('test_no_final_out.txt', 'rb') as f2:
+        orig = f1.read()
+        mod = f2.read()
+        assert orig == mod, f"No final newline test failed:\nOriginal: {orig}\nModified: {mod}"
+    print("No final newline test passed")
+
+if __name__ == '__main__':
+    test_empty_file()
+    test_mixed_endings()
+    test_no_final_newline()
+    print("All edge case tests passed!")