...
Unit Test Coverage shows a percentage of a source code covered by unit tests. It is a mix of Line coverage and Condition coverage. The metric can be also calculated for a new code only.
How
...
metric helps
Unit Test Coverage may be a guide for indicating a lack of coverage via Automated Testing - just because Unit Testing is the essential part of the Testing Pyramid. A trend helps to understand how a coverage is changing over time, if it is actually growing or falling and how those trends correlate with plans/investments about appropriate development efforts related to Unit Tests. Lack of coverage is typically a key obstacle for implementing the Continuous Integration and Continuous Delivery (CI/CD) on a project.
How
...
metric works
Chart overview
Chart shows Unit Tests Coverage in % by month:
In case if multiple Sonar projects are configured for a project in PERF, there is an option to view a summary over all them:
...
Calculation
Unit Test Coverage = (CT + CF + LC) / (2*B + EL),
...
Unit Test Coverage for a New Code, % calculation is Identical to Unit Test Coverage but restricted to new/updated source code.
Data Source
Data for the metric can be collected from Sonar.
...