test: ensure assertions are reachable in more folders #221

Job	Run time
Build slim tarball	1m 35s
aarch64-darwin: with shared libraries	26m 23s
x86_64-darwin: with shared libraries	46m 15s
aarch64-linux: with shared libraries	24m 38s
x86_64-linux: with shared libraries	28m 31s
	2h 7m 22s

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