SZEDER Gábor <szeder.dev@xxxxxxxxx> writes: > The test in question runs > > test_i18ngrep ! "refusing to lose untracked file at" err > > which fails in normal test runs, because 'grep' does find the > undesired string; that's the known breakage. Under GETTEXT_POISION, > however, 'test_i18ngrep' always succeeds because of this condition: > > if test -n "$GETTEXT_POISON" > then > # pretend success > return 0 > fi > > and then in turn the whole test succeeds. Ah, good spotting. If a test using "grep" declares that something must not exist in plumbing message, it writes "! grep something", and because "test_i18ngrep something" always pretends that something is found under poisoned build (by the way, would this change when we remove the separate poisoned build?), "test_i18ngrep ! something" must be used for Porcelain messages to say the same thing. Of course, this has a funny interactions with test_expect_failure. I actually do not think the complexity to work this around is worth it. Changing behaviour of "test_i18ngrep ! something" to always fail under poisoned build would not work, of course, and changing it to always fail under poisoned build inside test_expect_failure would not be a good idea, either, because the know breakage may be at steps in the same test that is different from the grep, e.g., we may have a "git dothis" command that should keep the HEAD without emitting an error message, and we may test it like so: git rev-parse HEAD >old && git dothis >out 2>err && test_i18ngrep ! error: err && # no error should be seen git rev-parse HEAD >new && test_cmp old new but currently the command may have a known bug that it moves HEAD; the command however does not emit an error message. SO...