Write more tests for cassandra/workflows.go

[taylanisikdemir]

What changed?
Continuing to add more tests to cassandra/workflows.go. More to come.

Why?
Increase coverage

[coveralls]

Pull Request Test Coverage Report for Build 018e1a47-5f1d-4aef-9589-b7fddee69429

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 59 unchanged lines in 12 files lost coverage.
• Overall coverage increased (+0.03%) to 63.937%

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Files with Coverage Reduction	New Missed Lines	%
common/task/weighted_round_robin_task_scheduler.go	2	88.56%
service/matching/taskListManager.go	2	79.7%
common/util.go	2	91.69%
common/persistence/executionManager.go	2	78.59%
common/membership/hashring.go	2	82.23%
service/history/task/fetcher.go	3	86.6%
service/history/queue/timer_queue_processor_base.go	3	77.82%
common/task/fifo_task_scheduler.go	5	84.54%
common/persistence/statsComputer.go	5	94.64%
service/history/shard/context.go	9	66.84%

Totals
Change from base Build 018e1a2e-085a-41ae-9444-fc353ea4c336:	0.03%
Covered Lines:	93731
Relevant Lines:	146599

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💛 - Coveralls

[codecov]

Codecov Report

Merging #5750 (40d9a3d) into master (50eedfa) will increase coverage by 0.12%.
The diff coverage is n/a.

❗ Current head 40d9a3d differs from pull request most recent head 8a96f40. Consider uploading reports for the commit 8a96f40 to get more accurate results

Additional details and impacted files

see 8 files with indirect coverage changes

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