tests: add test coverage #629

All 384 tests pass, 1 skipped in 3m 57s

    1 files ±0 146 suites ±0 3m 57s ⏱️ +2s
385 tests +1 384 ✔️ +1 1 💤 ±0 0 ❌ ±0
387 runs +1 386 ✔️ +1 1 💤 ±0 0 ❌ ±0

Results for commit 83a6b08. ± Comparison against earlier commit 5da4eda.