StormExecutor: adding an unit test to changes introduced in STORM-3693 #929

Job	Run time
build (ubuntu-latest, 17, Client, false)	5m 21s
build (ubuntu-latest, 17, Server, false)	17m 13s
build (ubuntu-latest, 17, Core, false)	9m 5s
build (ubuntu-latest, 17, External, false)	3m 49s
build (ubuntu-latest, 17, Check-Updated-License-Files, false)	3m 56s
build (ubuntu-latest, 17, Integration-Test, false)	5m 18s
build (ubuntu-latest, 21, Client, false)	5m 2s
build (ubuntu-latest, 21, Server, false)	16m 18s
build (ubuntu-latest, 21, Core, false)	10m 7s
build (ubuntu-latest, 21, External, false)	3m 51s
build (ubuntu-latest, 21, Check-Updated-License-Files, false)	4m 13s
build (ubuntu-latest, 21, Integration-Test, false)	5m 15s
	1h 29m 28s

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