tests: remove lax-no-cover pragmas by moving assertions before cancellation #1106

Job	Run time
checks / pre-commit	38s
checks / readme-snippets	14s
checks / test (3.10, lowest-direct, ubuntu-latest)	56s
checks / test (3.11, lowest-direct, ubuntu-latest)	53s
checks / test (3.11, lowest-direct, windows-latest)	2m 41s
checks / test (3.11, locked, ubuntu-latest)	51s
checks / test (3.11, locked, windows-latest)	2m 29s
checks / test (3.13, lowest-direct, windows-latest)	2m 33s
checks / test (3.12, lowest-direct, windows-latest)	3m 41s
checks / test (3.12, locked, windows-latest)	3m 24s
checks / test (3.10, locked, windows-latest)	2m 17s
checks / test (3.14, lowest-direct, windows-latest)	2m 28s
checks / test (3.13, lowest-direct, ubuntu-latest)	54s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 24s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.10, locked, ubuntu-latest)	54s
checks / test (3.14, locked, ubuntu-latest)	2m 26s
checks / test (3.12, locked, ubuntu-latest)	52s
checks / test (3.13, locked, ubuntu-latest)	52s
checks / test (3.13, locked, windows-latest)	2m 24s
checks / test (3.10, lowest-direct, windows-latest)	2m 16s
checks / test (3.14, locked, windows-latest)	3m 6s
all-green	5s
	39m 19s

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