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10 Reasons Why Code Coverage Matters
How Code Coverage plays a crucial role in the success and quality of a product
Code coverage means what percentage of your codebase is covered by the tests or being tested. If you have no tests, then the code coverage is zero.
This article is focused on the benefit and value aspect of code coverage, if you wish to set up code coverage then you might find the following article helpful
The following are some of the benefits of using a code coverage tool
- Find out what parts of the codebase is covered by tests and what is not
- Find out code execution paths you missed
- High code coverage points to a well-written and testable code
- You are more likely to write a unit test if you notice the coverage drop
- Enforce a culture of writing unit tests using code coverage rules
- High code coverage leads to confidence in code
- High code coverage is crucial to investors
- High code coverage matters to some potential customers
- Code coverage could lead to code refactoring
- Code coverage can verify whether tests are executed or not
It’s worth mentioning that code coverage is an indicator of what is covered by the tests and what’s not, and a 100% code coverage does not mean that your product is 100% tested or is bug-free or flawless.
1. What is tested and what is not
A code coverage tool shows which part of your codebase is tested and the components that are yet to be tested. The visibility is super helpful, especially when the codebase starts to get bigger, and the team of developers grows.
