test_invalid_inputs()

Documentation for tests/cancun/eip4844_blobs/test_point_evaluation_precompile.py::test_invalid_inputs@b314d18e.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/cancun/eip4844_blobs/test_point_evaluation_precompile.py::test_invalid_inputs --fork Amsterdam

Test invalid precompile calls; verification expected to fail.

Source code in tests/cancun/eip4844_blobs/test_point_evaluation_precompile.py

@pytest.mark.parametrize(
    "z,y,kzg_commitment,kzg_proof,versioned_hash",
    [
        # Out of bounds z and y.
        pytest.param(
            Spec.BLS_MODULUS,
            0,
            INF_POINT,
            INF_POINT,
            None,
            id="out_of_bounds_z",
        ),
        pytest.param(
            0,
            Spec.BLS_MODULUS,
            INF_POINT,
            INF_POINT,
            None,
            id="out_of_bounds_y",
        ),
        # Correct proof and commitment but incorrect input lengths.
        pytest.param(
            Z,
            0,
            INF_POINT,
            INF_POINT[:-1],
            None,
            id="correct_proof_1_input_too_short",
        ),
        pytest.param(
            Z,
            0,
            INF_POINT,
            INF_POINT[0:1],
            None,
            id="correct_proof_1_input_too_short_2",
        ),
        pytest.param(
            Z,
            0,
            INF_POINT,
            INF_POINT + b"\x00",
            None,
            id="correct_proof_1_input_too_long",
        ),
        pytest.param(
            Z,
            0,
            INF_POINT,
            INF_POINT + b"\x00" * 1023,
            None,
            id="correct_proof_1_input_extra_long",
        ),
        # Empty calldata.
        pytest.param(
            b"",
            b"",
            b"",
            b"",
            b"",
            id="null_inputs",
        ),
        # Zero commitment is not a valid compressed BLS12-381 point;
        # the two cases differ only in whether the versioned hash matches
        # the one derived from the zero commitment.
        pytest.param(
            0,
            0,
            0,
            0,
            0,
            id="zeros_inputs",
        ),
        pytest.param(
            0,
            0,
            0,
            0,
            None,
            id="zeros_inputs_correct_versioned_hash",
        ),
        # Correct proof and commitment but incorrect versioned-hash version.
        pytest.param(
            Z,
            0,
            INF_POINT,
            INF_POINT,
            Spec.kzg_to_versioned_hash(INF_POINT, 0x00),
            id="correct_proof_1_incorrect_versioned_hash_version_0x00",
        ),
        pytest.param(
            Z,
            0,
            INF_POINT,
            INF_POINT,
            Spec.kzg_to_versioned_hash(INF_POINT, 0x02),
            id="correct_proof_1_incorrect_versioned_hash_version_0x02",
        ),
        pytest.param(
            Z,
            0,
            INF_POINT,
            INF_POINT,
            Spec.kzg_to_versioned_hash(INF_POINT, 0xFF),
            id="correct_proof_1_incorrect_versioned_hash_version_0xff",
        ),
        # Proof is the negation of G1_generator.
        pytest.param(
            0,
            0,
            G1_GENERATOR,
            NEG_G1_GENERATOR,
            None,
            id="proof_neg_g1_generator",
        ),
        # P+P doubling in the final G1 add: verifier computes
        # `C - [y]_1 = [-1]_1 + [-1]_1`, forcing the doubling path.
        pytest.param(
            0,
            1,
            NEG_G1_GENERATOR,
            INF_POINT,
            None,
            id="g1_doubling_in_final_add",
        ),
    ],
)
@pytest.mark.parametrize("result", [Result.FAILURE])
@pytest.mark.valid_from("Cancun")
@pytest.mark.eels_base_coverage
def test_invalid_inputs(
    state_test: StateTestFiller,
    pre: Alloc,
    tx: Transaction,
    post: Dict,
) -> None:
    """Test invalid precompile calls; verification expected to fail."""
    state_test(
        env=Environment(),
        pre=pre,
        post=post,
        tx=tx,
    )

Parametrized Test Cases

This test generates 14 parametrized test cases across 4 forks.