Write tests for cassandra/queue.go

[taylanisikdemir]

What changed?
Adding tests for cassandra/queue.go

Why?
Improve coverage.

[codecov]

Codecov Report

Merging #5845 (be394ff) into master (24cd976) will increase coverage by 0.08%.
The diff coverage is 100.00%.

❗ Current head be394ff differs from pull request most recent head c1ee917. Consider uploading reports for the commit c1ee917 to get more accurate results

Additional details and impacted files

Files	Coverage Δ
...n/persistence/nosql/nosqlplugin/cassandra/queue.go	100.00% <100.00%> (+100.00%)	⬆️

... and 9 files with indirect coverage changes

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[coveralls]

Pull Request Test Coverage Report for Build 018ea4e2-f269-4fa8-b611-3902fe14d37f

Details

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• 35 unchanged lines in 8 files lost coverage.
• Overall coverage increased (+0.1%) to 65.994%

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Files with Coverage Reduction	New Missed Lines	%
service/matching/taskReader.go	2	84.88%
common/task/weighted_round_robin_task_scheduler.go	2	89.05%
common/task/fifo_task_scheduler.go	2	87.63%
tools/cli/admin_db_decode_thrift.go	2	70.51%
common/persistence/historyManager.go	2	66.67%
common/persistence/nosql/nosql_task_store.go	5	61.95%
service/history/task/transfer_standby_task_executor.go	8	87.01%
common/persistence/nosql/nosqlplugin/cassandra/gocql/public/client.go	12	20.93%

Totals
Change from base Build 018ea4e2-60e3-4f73-9198-fb325674c74f:	0.1%
Covered Lines:	96574
Relevant Lines:	146337

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💛 - Coveralls