TestFailOnFailingRunner checks that function doesn't silent VMRunner error.

TestFailsWhenContractNotDeployed check calls fails when contract is not registered.

TestReturnsDefaultOnFailingRunner checks that function will return a default value if there's an error on VMRunner.

ErrFailingRunner error for FailingVmRunner.

When executing the transaction, we expect to send base fee to governance contract.

FailingVmRunner is a VMRunner that always fails with a ErrFailingRunner.