{ runCommand, testers, emptyDirectory, }: let sitePkg = runCommand "site" { } '' dist=$out/dist mkdir -p $dist echo "foo" > $dist/index.html echo "" > $dist/foo.html ''; check = testers.lycheeLinkCheck { site = sitePkg + "/dist"; remap = { # Normally would recommend to append a subpath that hints why it's forbidden; see example in docs. # However, we also want to test that a package is converted to a string *before* # it's tested whether it's a store path. Mistake made during development caused: # cannot check URI: InvalidUrlRemap("The remapping pattern must produce a valid URL, but it is not: /nix/store/4d0ix...empty-directory/foo "https://example.com" = emptyDirectory; }; }; failure = testers.testBuildFailure check; in runCommand "link-check-fail" { inherit failure; } '' # The details of the message might change, but we have to make sure the # correct error is reported, so that we know it's not something else that # went wrong. grep 'empty-directory/foo.*Cannot find file' $failure/testBuildFailure.log >/dev/null touch $out ''