Core Java 8: TDD

Question 1

Unit

Answer 1

the smallest testable piece of code

Question 2

TDD

Answer 2

Test-Driven Development: a way of developing code which begins with a test, and then writing the minimum amount of code to fulfill that test. Each test should bring you closer and closer to the overall goal

Question 3

Why do we use TDD?

Answer 3

Reduces waste, you only write bare minimum code necessary; makes it easier to plan, forced to plan what code should do rather than writing it as it comes. You create less error prone code on average

Question 4

Unit testing

Answer 4

verifying all of smallest testable pieces of code (units) are working in isolation

Question 5

What does the assert statement do?

Answer 5

sets criteria for whether test passes

Question 6

Mockito

Answer 6

testing framework used to create mock objects

Question 7

Why do we use Mockito?

Answer 7

test classes with dependencies in isolation

Question 8

What is a mock object?

Answer 8

a fake version of an object whose behavior can be precisely controlled

Question 9

What is verify?

Answer 9

state-based testing vs behavioral testing; verify is used to make sure your class is interacting correctly with its dependencies; you can only verify on mock objects