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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:34:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:34:27 +0000
commit4dbdc42d9e7c3968ff7f690d00680419c9b8cb0f (patch)
tree47c1d492e9c956c1cd2b74dbd3b9d8b0db44dc4e /t/t0090-cache-tree.sh
parentInitial commit. (diff)
downloadgit-4dbdc42d9e7c3968ff7f690d00680419c9b8cb0f.tar.xz
git-4dbdc42d9e7c3968ff7f690d00680419c9b8cb0f.zip
Adding upstream version 1:2.43.0.upstream/1%2.43.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 't/t0090-cache-tree.sh')
-rwxr-xr-xt/t0090-cache-tree.sh282
1 files changed, 282 insertions, 0 deletions
diff --git a/t/t0090-cache-tree.sh b/t/t0090-cache-tree.sh
new file mode 100755
index 0000000..d8e2fc4
--- /dev/null
+++ b/t/t0090-cache-tree.sh
@@ -0,0 +1,282 @@
+#!/bin/sh
+
+test_description="Test whether cache-tree is properly updated
+
+Tests whether various commands properly update and/or rewrite the
+cache-tree extension.
+"
+
+TEST_PASSES_SANITIZE_LEAK=true
+ . ./test-lib.sh
+
+cmp_cache_tree () {
+ test-tool dump-cache-tree | sed -e '/#(ref)/d' >actual &&
+ sed "s/$OID_REGEX/SHA/" <actual >filtered &&
+ test_cmp "$1" filtered &&
+ rm filtered
+}
+
+# We don't bother with actually checking the SHA1:
+# test-tool dump-cache-tree already verifies that all existing data is
+# correct.
+generate_expected_cache_tree () {
+ pathspec="$1" &&
+ dir="$2${2:+/}" &&
+ git ls-tree --name-only HEAD -- "$pathspec" >files &&
+ git ls-tree --name-only -d HEAD -- "$pathspec" >subtrees &&
+ printf "SHA %s (%d entries, %d subtrees)\n" "$dir" $(wc -l <files) $(wc -l <subtrees) &&
+ while read subtree
+ do
+ generate_expected_cache_tree "$pathspec/$subtree/" "$subtree" || return 1
+ done <subtrees
+}
+
+test_cache_tree () {
+ generate_expected_cache_tree "." >expect &&
+ cmp_cache_tree expect &&
+ rm expect actual files subtrees &&
+ git status --porcelain -- ':!status' ':!expected.status' >status &&
+ if test -n "$1"
+ then
+ test_cmp "$1" status
+ else
+ test_must_be_empty status
+ fi
+}
+
+test_invalid_cache_tree () {
+ printf "invalid %s ()\n" "" "$@" >expect &&
+ test-tool dump-cache-tree |
+ sed -n -e "s/[0-9]* subtrees//" -e '/#(ref)/d' -e '/^invalid /p' >actual &&
+ test_cmp expect actual
+}
+
+test_no_cache_tree () {
+ >expect &&
+ cmp_cache_tree expect
+}
+
+test_expect_success 'initial commit has cache-tree' '
+ test_commit foo &&
+ test_cache_tree
+'
+
+test_expect_success 'read-tree HEAD establishes cache-tree' '
+ git read-tree HEAD &&
+ test_cache_tree
+'
+
+test_expect_success 'git-add invalidates cache-tree' '
+ test_when_finished "git reset --hard; git read-tree HEAD" &&
+ echo "I changed this file" >foo &&
+ git add foo &&
+ test_invalid_cache_tree
+'
+
+test_expect_success 'git-add in subdir invalidates cache-tree' '
+ test_when_finished "git reset --hard; git read-tree HEAD" &&
+ mkdir dirx &&
+ echo "I changed this file" >dirx/foo &&
+ git add dirx/foo &&
+ test_invalid_cache_tree
+'
+
+test_expect_success 'git-add in subdir does not invalidate sibling cache-tree' '
+ git tag no-children &&
+ test_when_finished "git reset --hard no-children; git read-tree HEAD" &&
+ mkdir dir1 dir2 &&
+ test_commit dir1/a &&
+ test_commit dir2/b &&
+ echo "I changed this file" >dir1/a &&
+ test_when_finished "rm before" &&
+ cat >before <<-\EOF &&
+ SHA (3 entries, 2 subtrees)
+ SHA dir1/ (1 entries, 0 subtrees)
+ SHA dir2/ (1 entries, 0 subtrees)
+ EOF
+ cmp_cache_tree before &&
+ echo "I changed this file" >dir1/a &&
+ git add dir1/a &&
+ cat >expect <<-\EOF &&
+ invalid (2 subtrees)
+ invalid dir1/ (0 subtrees)
+ SHA dir2/ (1 entries, 0 subtrees)
+ EOF
+ cmp_cache_tree expect
+'
+
+test_expect_success 'update-index invalidates cache-tree' '
+ test_when_finished "git reset --hard; git read-tree HEAD" &&
+ echo "I changed this file" >foo &&
+ git update-index --add foo &&
+ test_invalid_cache_tree
+'
+
+test_expect_success 'write-tree establishes cache-tree' '
+ test-tool scrap-cache-tree &&
+ git write-tree &&
+ test_cache_tree
+'
+
+test_expect_success 'test-tool scrap-cache-tree works' '
+ git read-tree HEAD &&
+ test-tool scrap-cache-tree &&
+ test_no_cache_tree
+'
+
+test_expect_success 'second commit has cache-tree' '
+ test_commit bar &&
+ test_cache_tree
+'
+
+test_expect_success PERL 'commit --interactive gives cache-tree on partial commit' '
+ test_when_finished "git reset --hard" &&
+ cat <<-\EOT >foo.c &&
+ int foo()
+ {
+ return 42;
+ }
+ int bar()
+ {
+ return 42;
+ }
+ EOT
+ git add foo.c &&
+ test_invalid_cache_tree &&
+ git commit -m "add a file" &&
+ test_cache_tree &&
+ cat <<-\EOT >foo.c &&
+ int foo()
+ {
+ return 43;
+ }
+ int bar()
+ {
+ return 44;
+ }
+ EOT
+ test_write_lines p 1 "" s n y q |
+ git commit --interactive -m foo &&
+ cat <<-\EOF >expected.status &&
+ M foo.c
+ EOF
+ test_cache_tree expected.status
+'
+
+test_expect_success PERL 'commit -p with shrinking cache-tree' '
+ mkdir -p deep/very-long-subdir &&
+ echo content >deep/very-long-subdir/file &&
+ git add deep &&
+ git commit -m add &&
+ git rm -r deep &&
+
+ before=$(wc -c <.git/index) &&
+ git commit -m delete -p &&
+ after=$(wc -c <.git/index) &&
+
+ # double check that the index shrank
+ test $before -gt $after &&
+
+ # and that our index was not corrupted
+ git fsck
+'
+
+test_expect_success 'commit in child dir has cache-tree' '
+ mkdir dir &&
+ >dir/child.t &&
+ git add dir/child.t &&
+ git commit -m dir/child.t &&
+ test_cache_tree
+'
+
+test_expect_success 'reset --hard gives cache-tree' '
+ test-tool scrap-cache-tree &&
+ git reset --hard &&
+ test_cache_tree
+'
+
+test_expect_success 'reset --hard without index gives cache-tree' '
+ rm -f .git/index &&
+ git clean -fd &&
+ git reset --hard &&
+ test_cache_tree
+'
+
+test_expect_success 'checkout gives cache-tree' '
+ git tag current &&
+ git checkout HEAD^ &&
+ test_cache_tree
+'
+
+test_expect_success 'checkout -b gives cache-tree' '
+ git checkout current &&
+ git checkout -b prev HEAD^ &&
+ test_cache_tree
+'
+
+test_expect_success 'checkout -B gives cache-tree' '
+ git checkout current &&
+ git checkout -B prev HEAD^ &&
+ test_cache_tree
+'
+
+test_expect_success 'merge --ff-only maintains cache-tree' '
+ git checkout current &&
+ git checkout -b changes &&
+ test_commit llamas &&
+ test_commit pachyderm &&
+ test_cache_tree &&
+ git checkout current &&
+ test_cache_tree &&
+ git merge --ff-only changes &&
+ test_cache_tree
+'
+
+test_expect_success 'merge maintains cache-tree' '
+ git checkout current &&
+ git checkout -b changes2 &&
+ test_commit alpacas &&
+ test_cache_tree &&
+ git checkout current &&
+ test_commit struthio &&
+ test_cache_tree &&
+ git merge changes2 &&
+ test_cache_tree
+'
+
+test_expect_success 'partial commit gives cache-tree' '
+ git checkout -b partial no-children &&
+ test_commit one &&
+ test_commit two &&
+ echo "some change" >one.t &&
+ git add one.t &&
+ echo "some other change" >two.t &&
+ git commit two.t -m partial &&
+ cat <<-\EOF >expected.status &&
+ M one.t
+ EOF
+ test_cache_tree expected.status
+'
+
+test_expect_success 'no phantom error when switching trees' '
+ mkdir newdir &&
+ >newdir/one &&
+ git add newdir/one &&
+ git checkout 2>errors &&
+ test_must_be_empty errors
+'
+
+test_expect_success 'switching trees does not invalidate shared index' '
+ (
+ sane_unset GIT_TEST_SPLIT_INDEX &&
+ git update-index --split-index &&
+ >split &&
+ git add split &&
+ test-tool dump-split-index .git/index | grep -v ^own >before &&
+ git commit -m "as-is" &&
+ test-tool dump-split-index .git/index | grep -v ^own >after &&
+ test_cmp before after
+ )
+'
+
+test_done