rafael-pieri / mock-alura Goto Github PK

In object-oriented programming, mock objects are simulated objects that mimic the behavior of real objects in controlled ways. A programmer typically creates a mock object to test the behavior of some other object.

This repository contains some examples of how to use mocks in automatic testing. Below are listed the topics covered:

• The problem of depending on other systems
• Mockito framework
• Simulating invocation of a method
• when() and thenReturn() methods

• Simulating methods that return nothing
• Ensuring that a method was invoked
• verify() method

• Simulating throw exceptions
• doThrow() method

• Testing content of parameters that are passed to methods
• ArgumentCaptor class

• Difficulty testing code that does a lot
• Good Code Practice
• Separating Responsibilities to Facilitate Testing

Execute the following command to up a MYSQL instance:

docker run --name mysql-instance -e MYSQL_ROOT_PASSWORD=root -d mysql:5.7

Once the database is up and running, execute the following command to run the automatic tests:

mvn test