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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
commitc8bae7493d2f2910b57f13ded012e86bdcfb0532 (patch)
tree24e09d9f84dec336720cf393e156089ca2835791 /t/t3305-notes-fanout.sh
parentInitial commit. (diff)
downloadgit-17a789943131483bc454986d1be6da6caaabce8c.tar.xz
git-17a789943131483bc454986d1be6da6caaabce8c.zip
Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 't/t3305-notes-fanout.sh')
-rwxr-xr-xt/t3305-notes-fanout.sh141
1 files changed, 141 insertions, 0 deletions
diff --git a/t/t3305-notes-fanout.sh b/t/t3305-notes-fanout.sh
new file mode 100755
index 0000000..1ec1fb6
--- /dev/null
+++ b/t/t3305-notes-fanout.sh
@@ -0,0 +1,141 @@
+#!/bin/sh
+
+test_description='Test that adding/removing many notes triggers automatic fanout restructuring'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+path_has_fanout() {
+ path=$1 &&
+ fanout=$2 &&
+ after_last_slash=$(($(test_oid hexsz) - $fanout * 2)) &&
+ echo $path | grep -q -E "^([0-9a-f]{2}/){$fanout}[0-9a-f]{$after_last_slash}$"
+}
+
+touched_one_note_with_fanout() {
+ notes_commit=$1 &&
+ modification=$2 && # 'A' for addition, 'D' for deletion
+ fanout=$3 &&
+ diff=$(git diff-tree --no-commit-id --name-status --root -r $notes_commit) &&
+ path=$(echo $diff | sed -e "s/^$modification[\t ]//") &&
+ path_has_fanout "$path" $fanout;
+}
+
+all_notes_have_fanout() {
+ notes_commit=$1 &&
+ fanout=$2 &&
+ git ls-tree -r --name-only $notes_commit |
+ while read path
+ do
+ path_has_fanout $path $fanout || return 1
+ done
+}
+
+test_expect_success 'tweak test environment' '
+ git checkout -b nondeterminism &&
+ test_commit A &&
+ git checkout --orphan with_notes;
+'
+
+test_expect_success 'creating many notes with git-notes' '
+ num_notes=300 &&
+ i=0 &&
+ while test $i -lt $num_notes
+ do
+ i=$(($i + 1)) &&
+ test_tick &&
+ echo "file for commit #$i" > file &&
+ git add file &&
+ git commit -q -m "commit #$i" &&
+ git notes add -m "note #$i" || return 1
+ done
+'
+
+test_expect_success 'many notes created correctly with git-notes' '
+ git log >output.raw &&
+ grep "^ " output.raw >output &&
+ i=$num_notes &&
+ while test $i -gt 0
+ do
+ echo " commit #$i" &&
+ echo " note #$i" &&
+ i=$(($i - 1)) || return 1
+ done > expect &&
+ test_cmp expect output
+'
+
+test_expect_success 'stable fanout 0 is followed by stable fanout 1' '
+ i=$num_notes &&
+ fanout=0 &&
+ while test $i -gt 0
+ do
+ i=$(($i - 1)) &&
+ if touched_one_note_with_fanout refs/notes/commits~$i A $fanout
+ then
+ continue
+ elif test $fanout -eq 0
+ then
+ fanout=1 &&
+ if all_notes_have_fanout refs/notes/commits~$i $fanout
+ then
+ echo "Fanout 0 -> 1 at refs/notes/commits~$i" &&
+ continue
+ fi
+ fi &&
+ echo "Failed fanout=$fanout check at refs/notes/commits~$i" &&
+ git ls-tree -r --name-only refs/notes/commits~$i &&
+ return 1
+ done &&
+ all_notes_have_fanout refs/notes/commits 1
+'
+
+test_expect_success 'deleting most notes with git-notes' '
+ remove_notes=285 &&
+ i=0 &&
+ git rev-list HEAD >revs &&
+ while test $i -lt $remove_notes && read sha1
+ do
+ i=$(($i + 1)) &&
+ test_tick &&
+ git notes remove "$sha1" || return 1
+ done <revs
+'
+
+test_expect_success 'most notes deleted correctly with git-notes' '
+ git log HEAD~$remove_notes | grep "^ " > output &&
+ i=$(($num_notes - $remove_notes)) &&
+ while test $i -gt 0
+ do
+ echo " commit #$i" &&
+ echo " note #$i" &&
+ i=$(($i - 1)) || return 1
+ done > expect &&
+ test_cmp expect output
+'
+
+test_expect_success 'stable fanout 1 is followed by stable fanout 0' '
+ i=$remove_notes &&
+ fanout=1 &&
+ while test $i -gt 0
+ do
+ i=$(($i - 1)) &&
+ if touched_one_note_with_fanout refs/notes/commits~$i D $fanout
+ then
+ continue
+ elif test $fanout -eq 1
+ then
+ fanout=0 &&
+ if all_notes_have_fanout refs/notes/commits~$i $fanout
+ then
+ echo "Fanout 1 -> 0 at refs/notes/commits~$i" &&
+ continue
+ fi
+ fi &&
+ echo "Failed fanout=$fanout check at refs/notes/commits~$i" &&
+ git ls-tree -r --name-only refs/notes/commits~$i &&
+ return 1
+ done &&
+ all_notes_have_fanout refs/notes/commits 0
+'
+
+test_done