tests: improve test coverage #387

All 185 tests pass, 1 skipped in 2m 52s

186 tests +1 185 ✔️ +1 2m 52s ⏱️ -3s
  56 suites ±0     1 💤 ±0
    1 files ±0     0 ❌ ±0

Results for commit cceb79f. ± Comparison against earlier commit 23a4176.