        // Reverts if price per token is not lower than both the proposed and active listings
        if (
            _pricePerToken >= proposedListing.pricePerToken ||
            _pricePerToken >= activeListings[_vault].pricePerToken
        ) revert NotLower();
    function testProposeRevertLowerTotalValue() public {
        uint256 _collateral = 100;
        uint256 _price = 100;
        // setup
        testPropose(_collateral, _price);
        lowerPrice = pricePerToken - 1;
        // execute
        vm.expectRevert();
        _propose(eve, vault, 1, lowerPrice, offer);
        // expect
        _assertListing(eve, 1, lowerPrice, block.timestamp);
        _assertTokenBalance(eve, token, tokenId, eveTokenBalance - 1);
    }
