Class name is marked as 'not covered' while running code coverage in Android Studio

Question

I have tried AndroidStudio's code coverage feature and I have met a strange issue:

It is marks the tested class's name as 'not covered' code. How is that possible? Is that a bug?

Picture here:

As you can see it has one method with 4 lines and each one of them is covered. So why is the red line at the class's name?

score 6 · Accepted Answer · answered Feb 20 '17 at 15:33

6

You are using a static method, so the class itself is never created as an object, therefore never testing that ability.

answered Feb 20 '17 at 15:33

Stefan

2,098
2
18
29

1

Well okay, and how does one tests a static method with coverage? – Adam Varhegyi Feb 20 '17 at 15:55
1

http://stackoverflow.com/questions/9700179/junit-testing-helper-class-with-only-static-methods like this – Stefan Feb 20 '17 at 19:22

score 3 · Answer 2 · answered Sep 16 '20 at 01:07

3

I tried the lombok @UtilityClass, it helped to ignore the class name and code coverage was improved to be 100%.

answered Sep 16 '20 at 01:07

thundear

118
6

score 0 · Answer 3 · answered Jul 29 '22 at 16:50

0

Since also a class with a static function has a default no-argument constructor, your code coverage tool will complain. A good way to solve this, is by adding a private constructor.

private EmailValidator() {
}

answered Jul 29 '22 at 16:50

Jing Ma

183
2
12

Class name is marked as 'not covered' while running code coverage in Android Studio

3 Answers3