[v3,1/4] t6006: simplify and optimize empty message test
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Message ID 20190829000657.26415-2-newren@gmail.com
State New
Headers show
  • Warn about git-filter-branch usage and avoid it
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Commit Message

Elijah Newren Aug. 29, 2019, 12:06 a.m. UTC
Test t6006.71 ("oneline with empty message") was creating two commits
with simple commit messages, and then running filter-branch to rewrite
the commit messages to be empty.  This test was written this way because
the --allow-empty-message option to git commit did not exist at the
time.  Simplify this test and avoid the need to invoke filter-branch by
just using --allow-empty-message when creating the commit.

Despite only being one piece of the 71st test and there being 73 tests
overall, this small change to just this one test speeds up the overall
execution time of t6006 (as measured by the best of 3 runs of `time
./t6006-rev-list-format.sh`) by about 11% on Linux and by 13% on

Signed-off-by: Elijah Newren <newren@gmail.com>
 t/t6006-rev-list-format.sh | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

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diff --git a/t/t6006-rev-list-format.sh b/t/t6006-rev-list-format.sh
index da113d975b..d30e41c9f7 100755
--- a/t/t6006-rev-list-format.sh
+++ b/t/t6006-rev-list-format.sh
@@ -501,9 +501,8 @@  test_expect_success 'reflog identity' '
 test_expect_success 'oneline with empty message' '
-	git commit -m "dummy" --allow-empty &&
-	git commit -m "dummy" --allow-empty &&
-	git filter-branch --msg-filter "sed -e s/dummy//" HEAD^^.. &&
+	git commit --allow-empty --allow-empty-message &&
+	git commit --allow-empty --allow-empty-message &&
 	git rev-list --oneline HEAD >test.txt &&
 	test_line_count = 5 test.txt &&
 	git rev-list --oneline --graph HEAD >testg.txt &&