Test::EasyMock::Expectation - A expected behavior object.
Create a instance.
Add a method result behavior.
Set a method result behavior as stub.
Remove results which flagged with 'implicit'.
Retrieve a result value.
It is tested whether it has a result.
It is tested whether it has a stub result.
It is tested whether the specified argument matches.
The call to expect tests whether it was called briefly.
The message showing a lacking call is acquired.