Testing Doubles

Question 1

Testing doubles

Answer 1

Objects in unit testing for verifying data or interactions without dependencies

Question 2

Spies

Answer 2

Records/monitors values and functionality. Spies don’t change the behaviour but verified wether the method has been called/interactions been called

Similar to mock

Question 3

Mocks

Answer 3

Records/monitors values and functionality. Mocks has expectations on the outcome and fails if the methods outcome don’t match the test pre programmer results

Similar to spies

Question 4

Dummy

Answer 4

Placeholder object being passed through. The value doesn’t matter, it’s if the function is being run that’s important

Question 5

Fake

Answer 5

Less complex objects used instead of labor intensive objects such as databases or external API:s

Question 6

Stub

Answer 6

Hard coded values and responses to remove complex logic such as dependencies so that the test solely focused on the logic being tested