improve test coverage

[bjartek]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 2496441722

• 41 of 63 (65.08%) changed or added relevant lines in 4 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+6.6%) to 64.516%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
overflow/setup.go	12	14	85.71%
overflow/transaction.go	12	32	37.5%

Files with Coverage Reduction	New Missed Lines	%
overflow/transaction.go	1	62.46%

Totals
Change from base Build 2494821202:	6.6%
Covered Lines:	1160
Relevant Lines:	1798

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💛 - Coveralls

[github-actions]

Unit Test Results

103 tests  +20   103 ✔️ +20   15s ⏱️ -2s
    7 suites ±  0       0 💤 ±  0 
    1 files   ±  0       0 ❌ ±  0 

Results for commit 1aff232. ± Comparison against base commit 7415ad6.

♻️ This comment has been updated with latest results.