BIGTOP-4342: Add some ut cases for config classes in server module #705

Job	Run time
Check typos	7s
Build project (17)	2m 6s
Check code style	17s
Build project (21)	1m 46s
Run unit test(Java)	1m 19s
Check license	35s
Run unit tests(Vue/Typescript)	1m 3s
	7m 13s

Provide feedback