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Test Bls12 Map Fp2 To G2

Documentation for tests/prague/eip2537_bls_12_381_precompiles/test_bls12_map_fp2_to_g2.py.

Generate fixtures for these test cases for Prague with:

Prague only: 

fill -v tests/prague/eip2537_bls_12_381_precompiles/test_bls12_map_fp2_to_g2.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_map_fp2_to_g2.py --until=Prague --evm-bin=/path/to/evm-tool-dev-version

Tests BLS12_MAP_FP2_TO_G2 precompile of EIP-2537: Precompile for BLS12-381 curve operations

Tests BLS12_MAP_FP2_TO_G2 precompile of EIP-2537: Precompile for BLS12-381 curve operations.

test_valid(state_test, pre, post, tx)

Test the BLS12_MAP_FP2_TO_G2 precompile.

Source code in tests/prague/eip2537_bls_12_381_precompiles/test_bls12_map_fp2_to_g2.py 
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@pytest.mark.parametrize(
    "input,expected_output",
    vectors_from_file("map_fp2_to_G2_bls.json")
    + [
        pytest.param(
            FP2((0, 0)),
            G2_POINT_ZERO_FP,
            id="fp_0",
        ),
        pytest.param(
            FP2((Spec.P - 1, Spec.P - 1)),
            PointG2(
                (
                    0x9BF1B857D8C15F317F649ACCFA7023EF21CFC03059936B83B487DB476FF9D2FE64C6147140A5F0A436B875F51FFDF07,  # noqa: E501
                    0xBB10E09BDF236CB2951BD7BCC044E1B9A6BB5FD4B2019DCC20FFDE851D52D4F0D1A32382AF9D7DA2C5BA27E0F1C69E6,  # noqa: E501
                ),
                (
                    0xDD416A927AB1C15490AB753C973FD377387B12EFCBE6BED2BF768B9DC95A0CA04D1A8F0F30DBC078A2350A1F823CFD3,  # noqa: E501
                    0x171565CE4FCD047B35EA6BCEE4EF6FDBFEC8CC73B7ACDB3A1EC97A776E13ACDFEFFC21ED6648E3F0EEC53DDB6C20FB61,  # noqa: E501
                ),
            ),
            id="fp_p_minus_1",
        ),
    ],
)
def test_valid(
    state_test: StateTestFiller,
    pre: Alloc,
    post: dict,
    tx: Transaction,
):
    """
    Test the BLS12_MAP_FP2_TO_G2 precompile.
    """
    state_test(
        env=Environment(),
        pre=pre,
        tx=tx,
        post=post,
    )

test_invalid(state_test, pre, post, tx)

Negative tests for the BLS12_MAP_FP_TO_G2 precompile.

Source code in tests/prague/eip2537_bls_12_381_precompiles/test_bls12_map_fp2_to_g2.py 
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@pytest.mark.parametrize(
    "input",
    vectors_from_file("fail-map_fp2_to_G2_bls.json")
    + [
        pytest.param(b"\x80" + bytes(FP2((0, 0)))[1:], id="invalid_encoding"),
        pytest.param(bytes(FP2((0, 0)))[1:], id="input_too_short"),
        pytest.param(b"\x00" + FP2((0, 0)), id="input_too_long"),
        pytest.param(b"", id="zero_length_input"),
        pytest.param(FP2((Spec.P, 0)), id="fq_eq_q"),
        pytest.param(FP2((0, Spec.P)), id="fq_eq_q_2"),
        pytest.param(FP2((2**512 - 1, 0)), id="fq_eq_2_512_minus_1"),
        pytest.param(FP2((0, 2**512 - 1)), id="fq_eq_2_512_minus_1_2"),
        pytest.param(Spec.G2, id="g2_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_MAP_FP_TO_G2 precompile.
    """
    state_test(
        env=Environment(),
        pre=pre,
        tx=tx,
        post=post,
    )

test_gas(state_test, pre, post, tx)

Test the BLS12_MAP_FP_TO_G2 precompile gas requirements.

Source code in tests/prague/eip2537_bls_12_381_precompiles/test_bls12_map_fp2_to_g2.py 
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@pytest.mark.parametrize(
    "input,expected_output,precompile_gas_modifier",
    [
        pytest.param(
            FP2((0, 0)),
            G2_POINT_ZERO_FP,
            1,
            id="extra_gas",
        ),
        pytest.param(
            FP2((0, 0)),
            Spec.INVALID,
            -1,
            id="insufficient_gas",
        ),
    ],
)
def test_gas(
    state_test: StateTestFiller,
    pre: Alloc,
    post: dict,
    tx: Transaction,
):
    """
    Test the BLS12_MAP_FP_TO_G2 precompile gas requirements.
    """
    state_test(
        env=Environment(),
        pre=pre,
        tx=tx,
        post=post,
    )

test_call_types(state_test, pre, post, tx)

Test the BLS12_MAP_FP_TO_G2 precompile using different call types.

Source code in tests/prague/eip2537_bls_12_381_precompiles/test_bls12_map_fp2_to_g2.py 
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@pytest.mark.parametrize(
    "call_opcode",
    [
        Op.STATICCALL,
        Op.DELEGATECALL,
        Op.CALLCODE,
    ],
)
@pytest.mark.parametrize(
    "input,expected_output",
    [
        pytest.param(
            FP2((0, 0)),
            G2_POINT_ZERO_FP,
            id="fp_0",
        ),
    ],
)
def test_call_types(
    state_test: StateTestFiller,
    pre: Alloc,
    post: dict,
    tx: Transaction,
):
    """
    Test the BLS12_MAP_FP_TO_G2 precompile using different call types.
    """
    state_test(
        env=Environment(),
        pre=pre,
        tx=tx,
        post=post,
    )