The project uses Apache Maven to build.
If you have maven installed, you can build and run the tests via mvn clean test
.
If you have not maven, then you can use the provided wrapper via mvnw clean test
Ideally you should load the project inside your prefer IDE and make sure you can run the tests.
The kata will mainly consist in making the tests to pass.
At each step you will have to uncomment the tests corresponding to the step and make them pass.