How do you explain test coverage?
Test coverage is defined as a technique which determines whether our test cases are actually covering the application code and how much code is exercised when we run those test cases. If there are 10 requirements and 100 tests created and if 90 tests are executed then test coverage is 90%.
What are some disadvantages of code coverage?
Disadvantages of Code Coverage
- Code coverage tools are mostly limited to unit testing.
- You may not be able to compare code coverage results of one tool to another as the methodology used by tools could be different.
- The most complex task is to find the tool that suits your requirements.
How important is test coverage?
Test Coverage is an important indicator of software quality and an essential part of software maintenance. It helps in evaluating the effectiveness of testing by providing data on different coverage items. It is a useful tool for finding untested parts of a code base.
Does 100% code coverage during testing ensure a quality product?
It makes no attempt to assess whether you have tested for every scenario. As a developer, it can be very tempting to assume that good code coverage equates to good testing. Clearly, in the above example, test1() achieves 100% code coverage. However, it isn’t a very good test.
What is difference between code coverage and test coverage?
For those who aren’t familiar with these terms, code coverage is a measure of code that is executed throughout testing, while test coverage is a measure of how much of the feature being tested is actually covered by tests*.
Is there a class that is not included in coverage?
To see what happens I ran only that particular test case with coverage turned on. In that case it actually shows the class in the jacoco results with 100% coverage and it’s included in the sessions page with id c359e0ff280a7afe and a link. But if I run it with all the other tests it is again not included in the coverage.
Why is JaCoCo missing a class that was fact tested?
I added System.out.println () statements to its constructor and it is being printed a number of times during test case execution, yet Jacoco shows no coverage for it. I made a copy of the class and its test case with a new name, and they are picked up by Jacoco.
Why is Maven not picking up unit test coverage?
The reuseReports setting prevents the deletion of the JaCoCo report file before it is read! (Since 4.3, this is the default and is deprecated.) I had the similar issue, 0.0% coverage & no unit tests count on Sonar dashboard with SonarQube 6.7.2: Maven : 3.5.2, Java : 1.8, Jacoco : Worked with 7.0/7.9/8.0, OS : Windows
How to execute tests and capture code coverage?
To execute the tests and capture code coverage we use mvn clean install or mvn clean install -Dtest=xxx to execute an individual test. We have the following maven properties: