Improve Code Coverage

[olivervogel]

Describe the feature you'd like
The overall code coverage could be better.

docker-compose run --rm --build coverage

[olivervogel]

New status

• Classes: 69.74% (159/228)
• Methods: 83.03% (597/719)
• Lines: 86.92% (2684/3088)

[olivervogel]

New status

• Classes: 74.79% (175/234)
• Methods: 84.91% (619/729)
• Lines: 88.94% (2847/3201)

[edgarsn]

I suggest you to add codecov to github actions, so that it's easier to track the coverage in PR's.

[olivervogel]

Thanks @edgarsn I'll have a look.