Created
December 21, 2020 20:38
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USDC v2: Upgrading a $1.4B Token - Testing Storage Slot 0
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| // Storage slot 1 contains "pauser" (bool) and "paused" (address) | |
| const data = await web3.eth.getStorageAt(contract.address, 1); | |
| const pauserData = data.slice(-40); // Take the last 20 bytes | |
| const pausedData = data.slice(-42, -40); // Take 1 byte before that | |
| expect(pauserData).to.equal(pauserAddress.slice(2).toLowerCase()); | |
| expect(!!parseInt(pausedData, 16)).to.equal(paused); // Convert to boolean |
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