Write tests for cassandra/tasks.go

[taylanisikdemir]

What changed?
Added unit tests for cassandra/tasks.go

Why?
Improve coverage

[codecov]

Codecov Report

Merging #5828 (81f0745) into master (e4bd6d0) will increase coverage by 0.16%.
The diff coverage is 100.00%.

❗ Current head 81f0745 differs from pull request most recent head 93bd7bc. Consider uploading reports for the commit 93bd7bc to get more accurate results

Additional details and impacted files

Files	Coverage Δ
...mmon/persistence/nosql/nosqlplugin/cassandra/db.go	96.07% <100.00%> (+0.33%)	⬆️
...n/persistence/nosql/nosqlplugin/cassandra/tasks.go	99.19% <100.00%> (+99.19%)	⬆️

... and 19 files with indirect coverage changes

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[coveralls]

Pull Request Test Coverage Report for Build 018e9d0a-ea16-438f-9380-4263004d4e85

Details

• 6 of 6 (100.0%) changed or added relevant lines in 2 files are covered.
• 55 unchanged lines in 12 files lost coverage.
• Overall coverage increased (+0.04%) to 65.342%

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Files with Coverage Reduction	New Missed Lines	%
common/task/weighted_round_robin_task_scheduler.go	1	89.05%
common/persistence/sql/sqlplugin/mysql/task.go	2	73.68%
service/matching/db.go	2	73.23%
service/history/task/transfer_active_task_executor.go	2	72.83%
common/util.go	2	91.78%
service/history/task/fetcher.go	2	85.57%
common/persistence/sql/sqlplugin/mysql/db.go	2	79.49%
common/log/tag/tags.go	3	50.18%
service/matching/taskReader.go	5	83.55%
service/history/task/cross_cluster_task_processor.go	8	80.79%

Totals
Change from base Build 018e9bcd-d2d9-47d4-85d6-f340468831ee:	0.04%
Covered Lines:	95621
Relevant Lines:	146339

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💛 - Coveralls

[davidporter-id-au]

this snapshotting of real data is really good for readability and understanding what the code does in action