block.run_must_fail

Build a test block from this test block builder, asserting that the building fails (i.e. throws an exception).

Typically used to test operation calls that must throw an exception.

Since

0.10.4

Build a test block from this test block builder, asserting that the building fails; i.e. throws an exception; with the given exception message.

Typically used to test operation calls that must throw an exception.

Parameters

• expected_message — the expected substring of the error message

Since

0.11.0