Fix usage of raise_error without an exception class
Fix usage of raise_error without an exception class

Using raise_error without passing an exception class or message is
dangerous because it effectively swallows all errors, making the
test pass. Instead, we should listen for the specific exception we
expect the code to raise.

boomerdigital/solidus_avatax_certified,boomerdigital/solidus_avatax_certified,boomerdigital/solidus_avatax_certified