Expect a UserOperation to revert. Similar to Foundry’s vm.expectRevert function but the latter will not work with UserOperations.

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Usage

instance.expect4337Revert();

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Parameters

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instance

The instance of the account used for testing.

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selector (optional)

  • Type: bytes4
The selector of the revert reason. If not provided, any revert reason will be accepted.

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message (optional)

  • Type: bytes
The entire revert reason. If not provided, any revert reason will be accepted.

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Returns

The function will revert if the UserOperation does not revert.