Which class contains at least one member variable of another class?
Variables defined within a class are called instance variables because each instance of the class (that is, each object of the class) contains its own copy of these variables. Thus, the data for one object is separate and unique from the data for another.
How do you access a private variable in a test class?
Use the TestVisible annotation to allow test methods to access private or protected members of another class outside the test class. These members include methods, member variables, and inner classes. This annotation enables a more permissive access level for running tests only.
Is there no way to mock the member variables of a class?
Is there no way to mock the member variables of a class that I want to test . ? You need to provide a way of accessing the member variables so you can pass in a mock (the most common ways would be a setter method or a constructor which takes a parameter).
Can a compiler reorder member variables for a test?
This means, that the compiler has the right to reorder the member variables and virtual functions for the test. You may struggle, that this won’t harm your classes if no buffer overflow happens, but it means, that you won’t test the same code as you deliver.
How to test private members of a class?
This method needs to change the tested class for befriending it with the test class or the test function. Some testing frameworks like gtest ( FRIEND_TEST (..);) have special functionality to support this way of accessing private things.
Can a static class have more than one member?
Only one copy of a static member exists, regardless of how many instances of the class are created. Static methods and properties cannot access non-static fields and events in their containing type, and they cannot access an instance variable of any object unless it’s explicitly passed in a method parameter.