fix: Compare generated repo map with expected map

tests/basic/test_repomap.py

@@ -448,6 +448,30 @@ class TestRepoMapAllLanguages(unittest.TestCase):
         # Generate the repo map
         generated_map = repo_map.get_repo_map([], other_files)
 
+        # Read the expected map from the file
+        with open(expected_map_file, 'r') as f:
+            expected_map = f.read().strip()
+
+        # Convert the generated map to a string representation
+        generated_map_str = repo_map.map_to_string(generated_map).strip()
+
+        # Compare the generated map with the expected map
+        if generated_map_str != expected_map:
+            # If they differ, show the differences and fail the test
+            import difflib
+            diff = list(difflib.unified_diff(
+                expected_map.splitlines(),
+                generated_map_str.splitlines(),
+                fromfile='expected',
+                tofile='generated',
+                lineterm=''
+            ))
+            diff_str = '\n'.join(diff)
+            self.fail(f"Generated map differs from expected map:\n{diff_str}")
+
+        # If we reach here, the maps are identical
+        self.assertEqual(generated_map_str, expected_map, "Generated map matches expected map")
+
 
 
 if __name__ == "__main__":