Write unit tests for remaining functions in cassandra/workflow.go

[taylanisikdemir]

What changed?
Write unit tests for remaining functions in cassandra/workflow.go

Why?
Improve coverage

[codecov]

Codecov Report

Merging #5818 (1a0a9f9) into master (4332db6) will increase coverage by 0.18%.
The diff coverage is n/a.

Additional details and impacted files

see 9 files with indirect coverage changes

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[coveralls]

Pull Request Test Coverage Report for Build 018e784f-ca75-4bf6-93da-dac6fed82742

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 91 unchanged lines in 20 files lost coverage.
• Overall coverage increased (+0.04%) to 65.269%

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Files with Coverage Reduction	New Missed Lines	%
service/history/queue/timer_queue_processor_base.go	1	77.62%
service/history/task/transfer_standby_task_executor.go	2	88.25%
common/persistence/sql/sqlplugin/postgres/task.go	2	73.4%
common/peerprovider/ringpopprovider/config.go	2	81.58%
common/persistence/sql/sqlplugin/postgres/db.go	2	80.0%
service/frontend/api/handler.go	2	62.05%
service/matching/db.go	2	73.23%
service/history/task/transfer_active_task_executor.go	2	72.7%
service/history/execution/mutable_state_util.go	2	78.07%
common/log/tag/tags.go	3	50.18%

Totals
Change from base Build 018e77b5-9d12-41e2-8f94-99b7ce572ebe:	0.04%
Covered Lines:	95383
Relevant Lines:	146139

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💛 - Coveralls