def test_empty_input_circuits():
    """Test that the input circuits are empty."""
    with pytest.raises(ValueError, match="Input circuits must not be empty."):
        cirq.contrib.shuffle_circuits.run_shuffled_with_readout_benchmarking(
            [],
            cirq.ZerosSampler(),
            circuit_repetitions=10,
            rng_or_seed=np.random.default_rng(456),
            num_random_bitstrings=5,
            readout_repetitions=100,
        )
Test that the input circuits are empty.
cirq-core/cirq/contrib/shuffle_circuits/shuffle_circuits_with_readout_benchmarking_test.py