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Test Bls12 G1mul

Documentation for tests/prague/eip2537_bls_12_381_precompiles/test_bls12_g1mul.py.

Generate fixtures for these test cases for Prague with:

Prague only: 

fill -v tests/prague/eip2537_bls_12_381_precompiles/test_bls12_g1mul.py --fork=Prague --evm-bin=/path/to/evm-tool-dev-version
For all forks up to and including Prague: 
fill -v tests/prague/eip2537_bls_12_381_precompiles/test_bls12_g1mul.py --until=Prague --evm-bin=/path/to/evm-tool-dev-version

Tests BLS12_G1MUL precompile of EIP-2537: Precompile for BLS12-381 curve operations

Tests BLS12_G1MUL precompile of EIP-2537: Precompile for BLS12-381 curve operations.

test_valid(state_test, pre, post, tx)

Test the BLS12_G1MUL precompile.

Source code in tests/prague/eip2537_bls_12_381_precompiles/test_bls12_g1mul.py 
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@pytest.mark.parametrize(
    "input,expected_output",
    vectors_from_file("mul_G1_bls.json")
    + [
        pytest.param(
            Spec.INF_G1 + Scalar(0),
            Spec.INF_G1,
            id="bls_g1mul_(0*inf=inf)",
        ),
        pytest.param(
            Spec.INF_G1 + Scalar(2**256 - 1),
            Spec.INF_G1,
            id="bls_g1mul_(2**256-1*inf=inf)",
        ),
        pytest.param(
            Spec.P1 + Scalar(2**256 - 1),
            PointG1(
                0x3DA1F13DDEF2B8B5A46CD543CE56C0A90B8B3B0D6D43DEC95836A5FD2BACD6AA8F692601F870CF22E05DDA5E83F460B,  # noqa: E501
                0x18D64F3C0E9785365CBDB375795454A8A4FA26F30B9C4F6E33CA078EB5C29B7AEA478B076C619BC1ED22B14C95569B2D,  # noqa: E501
            ),
            id="bls_g1mul_(2**256-1*P1)",
        ),
        pytest.param(
            Spec.P1 + Scalar(Spec.Q - 1),
            -Spec.P1,  # negated P1
            id="bls_g1mul_(q-1*P1)",
        ),
        pytest.param(
            Spec.P1 + Scalar(Spec.Q),
            Spec.INF_G1,
            id="bls_g1mul_(q*P1)",
        ),
        pytest.param(
            Spec.P1 + Scalar(Spec.Q + 1),
            Spec.P1,
            id="bls_g1mul_(q+1*P1)",
        ),
        pytest.param(
            Spec.P1 + Scalar(2 * Spec.Q),
            Spec.INF_G1,
            id="bls_g1mul_(2q*P1)",
        ),
        pytest.param(
            Spec.P1 + Scalar((2**256 // Spec.Q) * Spec.Q),
            Spec.INF_G1,
            id="bls_g1mul_(Nq*P1)",
        ),
    ],
)
def test_valid(
    state_test: StateTestFiller,
    pre: Alloc,
    post: dict,
    tx: Transaction,
):
    """
    Test the BLS12_G1MUL precompile.
    """
    state_test(
        env=Environment(),
        pre=pre,
        tx=tx,
        post=post,
    )

test_invalid(state_test, pre, post, tx)

Negative tests for the BLS12_G1MUL precompile.

Source code in tests/prague/eip2537_bls_12_381_precompiles/test_bls12_g1mul.py 
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@pytest.mark.parametrize(
    "input",
    vectors_from_file("fail-mul_G1_bls.json")
    + [
        pytest.param(
            PointG1(0, 1) + Scalar(0),
            id="invalid_point_1",
        ),
        pytest.param(
            PointG1(Spec.P1.x, Spec.P1.y - 1) + Scalar(0),
            id="invalid_point_2",
        ),
        pytest.param(
            PointG1(Spec.P1.x, Spec.P1.y + 1) + Scalar(0),
            id="invalid_point_3",
        ),
        pytest.param(
            PointG1(Spec.P1.x, Spec.P1.x) + Scalar(0),
            id="invalid_point_4",
        ),
        pytest.param(
            b"\x80" + bytes(Spec.INF_G1)[1:] + Scalar(0),
            id="invalid_encoding",
        ),
        pytest.param(
            (Spec.INF_G1 + Scalar(0))[:-1],
            id="input_too_short",
        ),
        pytest.param(
            b"\x00" + (Spec.INF_G1 + Scalar(0)),
            id="input_too_long",
        ),
        pytest.param(
            b"",
            id="zero_length_input",
        ),
        pytest.param(
            Spec.P1_NOT_IN_SUBGROUP + Scalar(1),
            id="bls_g1mul_not_in_subgroup_1",
        ),
        pytest.param(
            Spec.P1_NOT_IN_SUBGROUP_TIMES_2 + Scalar(1),
            id="bls_g1mul_not_in_subgroup_2",
        ),
        pytest.param(
            Spec.P1_NOT_IN_SUBGROUP_TIMES_2 + Scalar(Spec.Q),
            id="bls_g1mul_not_in_subgroup_times_q",
        ),
        pytest.param(
            Spec.P1_NOT_IN_SUBGROUP + Scalar(Spec.Q),
            id="bls_g1mul_not_in_subgroup_times_q_2",
        ),
        pytest.param(
            Spec.G1 + Spec.G1,
            id="bls_g1_add_input_invalid_length",
        ),
        pytest.param(
            Spec.G2 + Spec.G2,
            id="bls_g2_add_input_invalid_length",
        ),
        pytest.param(
            Spec.G1,
            id="bls_g1_truncated_input",
        ),
    ],
)
@pytest.mark.parametrize("expected_output", [Spec.INVALID], ids=[""])
def test_invalid(
    state_test: StateTestFiller,
    pre: Alloc,
    post: dict,
    tx: Transaction,
):
    """
    Negative tests for the BLS12_G1MUL precompile.
    """
    state_test(
        env=Environment(),
        pre=pre,
        tx=tx,
        post=post,
    )

test_gas(state_test, pre, post, tx)

Test the BLS12_G1MUL precompile gas requirements.

Source code in tests/prague/eip2537_bls_12_381_precompiles/test_bls12_g1mul.py 
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@pytest.mark.parametrize(
    "input,expected_output,precompile_gas_modifier",
    [
        pytest.param(
            Spec.INF_G1 + Scalar(0),
            Spec.INF_G1,
            1,
            id="extra_gas",
        ),
        pytest.param(
            Spec.INF_G1 + Scalar(0),
            Spec.INVALID,
            -1,
            id="insufficient_gas",
        ),
    ],
)
def test_gas(
    state_test: StateTestFiller,
    pre: Alloc,
    post: dict,
    tx: Transaction,
):
    """
    Test the BLS12_G1MUL precompile gas requirements.
    """
    state_test(
        env=Environment(),
        pre=pre,
        tx=tx,
        post=post,
    )

test_call_types(state_test, pre, post, tx)

Test the BLS12_G1MUL precompile using different call types.

Source code in tests/prague/eip2537_bls_12_381_precompiles/test_bls12_g1mul.py 
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@pytest.mark.parametrize(
    "call_opcode",
    [
        Op.STATICCALL,
        Op.DELEGATECALL,
        Op.CALLCODE,
    ],
)
@pytest.mark.parametrize(
    "input,expected_output",
    [
        pytest.param(
            Spec.INF_G1 + Scalar(0),
            Spec.INF_G1,
            id="bls_g1mul_(0*inf=inf)",
        ),
    ],
)
def test_call_types(
    state_test: StateTestFiller,
    pre: Alloc,
    post: dict,
    tx: Transaction,
):
    """
    Test the BLS12_G1MUL precompile using different call types.
    """
    state_test(
        env=Environment(),
        pre=pre,
        tx=tx,
        post=post,
    )