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helper function: Circuit::test_proof_and_verify() #772

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helper function: Circuit::test_proof_and_verify() #772

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Commits on Apr 28, 2023

  1. plonk::circuit::Circuit: test_prove_and_verify

    @therealyingtong
    therealyingtong committed Apr 28, 2023
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  2. simple-example: Failing to verify real proof 

    The constant value is passed in through the MyCircuit struct.
In MyCircuit::without_witnesses(), this constant is set to F::ZERO
(F::default()). Because keygen uses without_witnesses() to define
the circuit, the constant value is set to zero in ConstraintSystem;
however, at proving time, MyCircuit passes in a nonzero constant.
This causes the equality constraint in assign_advice_from_constant
to fail.

In general, fixed values should be copied in without_witnesses().
    @therealyingtong
    therealyingtong committed Apr 28, 2023
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  3. simple-example: Fix without_witnesses()

    @therealyingtong
    therealyingtong committed Apr 28, 2023
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