Improve test coverage (#384) #80

Job	Run time
Build & Test (centos-7)	13m 31s
Build & Test (centos-stream-8)	14m 36s
Build & Test (centos-stream-9)	12m 37s
Build & Test (debian-11)	3m 4s
Build & Test (debian-12)	2m 23s
Build & Test (debian-testing)	2m 27s
Build & Test (fedora-38)	2m 36s
Build & Test (fedora-39)	2m 42s
Build & Test (fedora-rawhide)	2m 42s
Build & Test (opensuse-leap-15)	13m 53s
Build & Test (opensuse-tumbleweed)	10m 56s
Build & Test (ubuntu-20.04)	3m 17s
Build & Test (ubuntu-22.04)	2m 50s
Build & Test (ubuntu-devel)	2m 32s
	1h 30m 6s

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