Addition of tests for archivalConfigStateMachine in common/domain

[abhishekj720]

What changed?
Added tests for archivalConfigStateMachine in common/domain

Why?
To increase test coverage

How did you test it?
Unit Tests

Potential risks
No risks, as it only contains tests not calling real db instances etc.

[codecov]

Codecov Report

Merging #5778 (a15ceef) into master (7ef6c99) will increase coverage by 0.03%.
The diff coverage is n/a.

Additional details and impacted files

see 7 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7ef6c99...a15ceef. Read the comment docs.

[coveralls]

Pull Request Test Coverage Report for Build 018e3163-8300-4a06-82ea-df00ae37e094

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 122 unchanged lines in 17 files lost coverage.
• Overall coverage decreased (-0.007%) to 64.118%

---

Files with Coverage Reduction	New Missed Lines	%
service/matching/taskReader.go	2	84.88%
common/task/weighted_round_robin_task_scheduler.go	2	88.56%
service/history/task/transfer_active_task_executor.go	2	72.51%
common/persistence/executionManager.go	2	78.59%
service/matching/taskListManager.go	2	80.2%
service/history/execution/mutable_state_util.go	2	78.48%
common/persistence/nosql/nosqlplugin/cassandra/workflow.go	3	71.41%
service/history/task/transfer_standby_task_executor.go	4	87.01%
common/task/fifo_task_scheduler.go	5	84.54%
common/persistence/statsComputer.go	5	94.64%

Totals
Change from base Build 018e2fd9-a00f-486a-badd-cbc5210ae61c:	-0.007%
Covered Lines:	93479
Relevant Lines:	145791

---

💛 - Coveralls