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?

Stefan · Accepted Answer · 2017-02-20 15:33:06Z

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, 2017 at 15:33

Stefan

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2 Comments

Adam Varhegyi Over a year ago

Well okay, and how does one tests a static method with coverage?

Stefan Over a year ago

stackoverflow.com/questions/9700179/… like this

thundear · Accepted Answer · 2020-09-16 01:07:41Z

3

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

answered Sep 16, 2020 at 1:07

thundear

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Comments

Jing Ma · Accepted Answer · 2022-07-29 16:50:32Z

1

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, 2022 at 16:50

Jing Ma

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