Add tests for mutable_state_builder_methods_decision.go

[fimanishi]

What changed?
tests for mutable_state_builder_methods_decision.go

Why?
improve unit test coverage

How did you test it?
unit tests

Potential risks

Release notes

Documentation Changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.99%. Comparing base (02c7efb) to head (5bb5572).
Report is 24 commits behind head on master.

Additional details and impacted files

see 33 files with indirect coverage changes

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[coveralls]

Pull Request Test Coverage Report for Build 018fac5c-d378-4465-b436-35160dcaea58

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 472 unchanged lines in 28 files lost coverage.
• Overall coverage decreased (-0.2%) to 69.2%

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Files with Coverage Reduction	New Missed Lines	%
service/history/shard/context.go	1	69.08%
common/persistence/nosql/nosql_visibility_store.go	1	48.78%
common/task/weighted_round_robin_task_scheduler.go	2	88.56%
common/persistence/sql/sqlplugin/postgres/task.go	2	73.4%
common/task/parallel_task_processor.go	2	93.06%
service/matching/tasklist/db.go	2	73.23%
common/dynamicconfig/constants.go	2	99.05%
common/task/fifo_task_scheduler.go	2	85.57%
service/history/task/transfer_active_task_executor.go	2	72.72%
common/util.go	2	91.78%

Totals
Change from base Build 018fa65b-f10a-4dc6-8f5b-50bc0a76f08d:	-0.2%
Covered Lines:	101866
Relevant Lines:	147206

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💛 - Coveralls