Hi, I am trying out Diffblue Cover and came across a few of these messages for methods I want tested:
Cannot generate essential test for [myMethodUnderTest]: Unable to find any meaningful assertion. Diffblue Cover could not determine valid inputs for the methods under test. Please add observers (e.g. getters or public fields) in the parameter/return class types of the method under test that access or return fields written by the method under test.
Can you explain what is a “meaningful assertion”? Why can’t Diffblue Cover find them?