create a mock class for callout in managed package
11443
Managed package callout invoked from managed package extension causing test class failure
136105
Make RPC/Encoded callouts from Apex
156980
How do I mock an open used in a with statement (using the Mock framework in Python)?
147603
How can I call a method in an object from outside the JVM?
85266
Unit testing a method that calls another method
125292
how to pass a non static-member function as a callback?
83962
Unit testing code which has logic around the CreatedDate
56330
Moq C# built in class
148962
When should I mock?
38152
test class with Batch and Callout
86558
How do you generate dynamic (parameterized) unit tests in Python?
73217
Is there a way to instantiate a class without calling __init__?
98099
How to include inner class/wrapper class in test method?
74461
Cover aggregate Result Wrapper Class in test class
108085
Test class for Schedulable class
44470
How to test method call order with Moq
33795
Is there a call_user_func() equivalent to create a new class instance?