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shouc avatar shouc commented on August 18, 2024

There is a bug in the coverage calculation process.

An ad-hoc way to bypass this is by making it a foundry project and adding a setup script (check https://book.getfoundry.sh/forge/invariant-testing)

Example:

contract InvariantExample1 is Test {

    ExampleContract1 foo;

    function setUp() external {
        foo = new ExampleContract1();
    }

    function invariant_A() external {
        assertEq(foo.val1() + foo.val2(), foo.val3());
    }

    function invariant_B() external {
        assertGe(foo.val1() + foo.val2(), foo.val3());
    }

}

Then run:

ityfuzz evm -m test/Invariant.sol:InvariantExample1 -- forge test

from ityfuzz.

qianqianpang avatar qianqianpang commented on August 18, 2024

@shouc Excuse me, has anyone been working on fixing this calculation bug?

from ityfuzz.

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