def test_empty_input_circuits_to_pauli_mapping() -> None:
    """Test that the input circuits are empty."""

    with pytest.raises(ValueError, match="Input circuits must not be empty."):
        measure_pauli_strings(
            [],  # type: ignore[arg-type]
            cirq.Simulator(),
            1000,
            1000,
            1000,
            np.random.default_rng(),
        )
Test that the input circuits are empty.
cirq-core/cirq/contrib/paulistring/pauli_string_measurement_with_readout_mitigation_test.py