run_must_fail
Try to build the block and require it to fail.
Since
0.10.4
Try to build the block and require it to fail with an expected message.
Since
0.11.0
Parameters
expected_message
String that must be contained in the error message
Try to build the block and require it to fail.
0.10.4
Try to build the block and require it to fail with an expected message.
0.11.0
String that must be contained in the error message