import unittest
import sys
import io
import contextlib
import os

sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

def run_tests(test_code):
    """Execute the generated test cases."""
    try:
        # Redirect stdout to capture test results
        with io.StringIO() as buf, contextlib.redirect_stdout(buf):
            # Execute the test code
            exec(test_code, globals())

            # Find test suite and run it
            for var_name, var_value in globals().items():
                if isinstance(var_value, type) and issubclass(
                        var_value, unittest.TestCase):
                    suite = unittest.TestLoader().loadTestsFromTestCase(var_value)
                    unittest.TextTestRunner(stream=buf, verbosity=2).run(suite)

            test_output = buf.getvalue()

        print(test_output)
        return 0  # Return 0 to indicate successful execution

    except Exception as e:
        print(f"Error executing tests: {str(e)}")
        return 1  # Return 1 to indicate an error

if __name__ == "__main__":
    test_code = sys.stdin.read()
    exit_code = run_tests(test_code)
    sys.exit(exit_code)