unit tests

Merge pull request #237 from khevessy/lteInterfaceType #194

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Run time

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Job	Run time
docker-unit-tests (bionic)	4m 9s
docker-unit-tests (focal)	4m 33s
docker-unit-tests (jammy)	3m 53s
docker-unit-tests (noble)	4m 39s
	17m 14s