tests: add test coverage #650

All 386 tests pass, 1 skipped in 4m 12s

    1 files ±0 147 suites ±0 4m 12s ⏱️ +2s
387 tests +1 386 ✔️ +1 1 💤 ±0 0 ❌ ±0
389 runs +1 388 ✔️ +1 1 💤 ±0 0 ❌ ±0

Results for commit 2fa695d. ± Comparison against earlier commit d79e2c0.