Test for DescribeMutableState

[jakobht]

What changed?
Added tests for DescribeMutable State

Why?
Improve coverage

How did you test it?

Potential risks

Release notes

Documentation Changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.03%. Comparing base (8d5c056) to head (18e66ae).
Report is 2 commits behind head on master.

Additional details and impacted files

see 7 files with indirect coverage changes

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[coveralls]

Pull Request Test Coverage Report for Build 018fb8d7-af34-46ef-b0c3-4cb6e1886514

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 29 unchanged lines in 9 files lost coverage.
• Overall coverage increased (+0.03%) to 69.512%

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Files with Coverage Reduction	New Missed Lines	%
service/history/queue/timer_queue_processor_base.go	1	77.66%
common/task/weighted_round_robin_task_scheduler.go	2	88.56%
service/matching/tasklist/task_list_manager.go	2	76.09%
service/history/queue/transfer_queue_processor.go	2	56.07%
service/matching/tasklist/matcher.go	2	89.35%
common/task/fifo_task_scheduler.go	3	82.47%
service/frontend/api/handler.go	4	62.26%
service/frontend/wrappers/metered/metered.go	4	66.67%
service/history/engine/engineimpl/poll_mutable_state.go	9	74.16%

Totals
Change from base Build 018faadd-0f68-4f46-a937-a0c09b154ebd:	0.03%
Covered Lines:	102473
Relevant Lines:	147418

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💛 - Coveralls