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[31.211.229.121]) by smtp.gmail.com with ESMTPSA id u4sm5817874lfo.79.2020.03.08.00.46.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Mar 2020 00:46:33 -0800 (PST) From: =?UTF-8?q?Martin=20=C3=85gren?= To: "Randall S . Becker" Cc: Derrick Stolee , git@vger.kernel.org Subject: [PATCH] t1091: don't grep for `strerror()` string Date: Sun, 8 Mar 2020 09:46:27 +0100 Message-Id: <20200308084627.26677-1-martin.agren@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <018001d5f305$0c709af0$2551d0d0$@nexbridge.com> References: <018001d5f305$0c709af0$2551d0d0$@nexbridge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org We grep for "File exists" in stderr of the failing `git sparse-checkout` to make sure that it failed for the right reason. We expect the string to show up there since we call `strerror(errno)` in `unable_to_lock_message()` in lockfile.c. On the NonStop platform, this fails because the error string is "File already exists", which doesn't match our grepping. See 9042140097 ("test-dir-iterator: do not assume errno values", 2019-07-30) for a somewhat similar fix. There, we patched a test helper, which meant we had access to `errno` and could investigate it better in the test helper instead of just outputting the numerical value and evaluating it in the test script. The current situation is different, since (short of modifying the lockfile machinery, e.g., to be more verbose) we don't have more than the output from `strerror()` available. Except we do: We prefix `strerror(errno)` with `_("Unable to create '%s.lock': ")`. Let's grep for that part instead. It verifies that we were indeed unable to create the lock file. (If that fails for some other reason than the file existing, we really really should expect other tests to fail as well.) An alternative fix would be to loosen the expression a bit and grep for "File.* exists" instead. There would be no guarantee that some other implementation couldn't come up with another error string, That is, that could be the first move in an endless game of whack-a-mole. Of course, it could also take us from "99" to "100" percent of the platforms and we'd never have this problem again. But since we have another way of addressing this, let's not even try the "loosen it up a bit" strategy. Reported-by: Randall S. Becker Signed-off-by: Martin Ågren --- Hi Randall, Thanks for the report. > test to fail. The error message generated is "File already exists" not "File > exists" as is required in the test. We should not be testing for specific > text content originating from strerror - I thought we had this decision in a > different thread. > https://public-inbox.org/git/xmqq36intlpj.fsf@gitster-ct.c.googlers.com/ > error: 'grep File exists err' didn't find a match in: > fatal: Unable to create '/home/ituglib/randall/git/t/trash > directory.t1091-sparse-checkout-builtin/repo/.git/info/sparse-checkout.lock' > : File already exists. <----- this is the test issue Does this patch solve it? t/t1091-sparse-checkout-builtin.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/t/t1091-sparse-checkout-builtin.sh b/t/t1091-sparse-checkout-builtin.sh index b4c9c32a03..44a91205d6 100755 --- a/t/t1091-sparse-checkout-builtin.sh +++ b/t/t1091-sparse-checkout-builtin.sh @@ -305,7 +305,7 @@ test_expect_success 'fail when lock is taken' ' test_when_finished rm -rf repo/.git/info/sparse-checkout.lock && touch repo/.git/info/sparse-checkout.lock && test_must_fail git -C repo sparse-checkout set deep 2>err && - test_i18ngrep "File exists" err + test_i18ngrep "Unable to create .*\.lock" err ' test_expect_success '.gitignore should not warn about cone mode' ' -- 2.25.1