[PATCH v2 1/2] t7508: add tests capturing racy timestamp handling

From

Marc Strapetz via GitGitGadget <gitgitgadget@gmail.com>

Date

Jan 5, 2022, 13:15 UTC

Message-ID

<7d58f80611193f8696d99e317fe6b1e53ac740f7.1641388523.git.gitgitgadget@gmail.com>

In-Reply-To

<pull.1105.v2.git.1641388523.gitgitgadget@gmail.com>

From: Marc Strapetz <marc.strapetz@syntevo.com>

Signed-off-by: Marc Strapetz <marc.strapetz@syntevo.com>
---
 t/t7508-status.sh | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/t/t7508-status.sh b/t/t7508-status.sh
index 05c6c02435d..652cbb5ed2e 100755
--- a/t/t7508-status.sh
+++ b/t/t7508-status.sh
@@ -1656,4 +1656,32 @@ test_expect_success '--no-optional-locks prevents index update' '
 	! grep ^1234567890 out
 '
 
+test_expect_success 'racy timestamps will be fixed for clean worktree' '
+	echo content >racy-dirty &&
+	echo content >racy-racy &&
+	git add racy* &&
+	git commit -m "racy test files" &&
+	# let status rewrite the index, if necessary; after that we expect
+	# no more index writes unless caused by racy timestamps; note that
+	# timestamps may already be racy now (depending on previous tests)
+	git status &&
+	test-tool chmtime =1234567890 .git/index &&
+	test-tool chmtime --get .git/index >out &&
+	grep ^1234567890 out &&
+	git status &&
+	test-tool chmtime --get .git/index >out &&
+	! grep ^1234567890 out
+'
+
+test_expect_success 'racy timestamps will be fixed for dirty worktree' '
+	echo content2 >racy-dirty &&
+	git status &&
+	test-tool chmtime =1234567890 .git/index &&
+	test-tool chmtime --get .git/index >out &&
+	grep ^1234567890 out &&
+	git status &&
+	test-tool chmtime --get .git/index >out &&
+	! grep ^1234567890 out
+'
+
 test_done

-- 
gitgitgadget