Code coverage tools are used to determine which part of the code is covered and tested by the different test cases and which part is not tested. These tools offer an insightful view of the code and its related test cases. Once developers write the test cases for their Solidity project, they can use the coverage tools to find their code coverage. The more the code is covered with test cases, the lower the probability that you will find any bugs in the code in the future.

For Solidity, there is an open source tool called solidity-coverage. In this section, we will take a look at this tool in more detail and use it on the sample code. Files related to this section are present in the Chapter06/LintersTutorial folder.