diff options
Diffstat (limited to 't/t0090-cache-tree.sh')
| -rwxr-xr-x | t/t0090-cache-tree.sh | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/t/t0090-cache-tree.sh b/t/t0090-cache-tree.sh new file mode 100755 index 0000000000..adfd4f0b5e --- /dev/null +++ b/t/t0090-cache-tree.sh @@ -0,0 +1,255 @@ +#!/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-lib.sh + +cmp_cache_tree () { + test-dump-cache-tree | sed -e '/#(ref)/d' >actual && + sed "s/$_x40/SHA/" <actual >filtered && + test_cmp "$1" filtered +} + +# We don't bother with actually checking the SHA1: +# test-dump-cache-tree already verifies that all existing data is +# correct. +generate_expected_cache_tree_rec () { + dir="$1${1:+/}" && + parent="$2" && + # ls-files might have foo/bar, foo/bar/baz, and foo/bar/quux + # We want to count only foo because it's the only direct child + subtrees=$(git ls-files|grep /|cut -d / -f 1|uniq) && + subtree_count=$(echo "$subtrees"|awk -v c=0 '$1 != "" {++c} END {print c}') && + entries=$(git ls-files|wc -l) && + printf "SHA $dir (%d entries, %d subtrees)\n" "$entries" "$subtree_count" && + for subtree in $subtrees + do + cd "$subtree" + generate_expected_cache_tree_rec "$dir$subtree" "$dir" || return 1 + cd .. + done && + dir=$parent +} + +generate_expected_cache_tree () { + ( + generate_expected_cache_tree_rec + ) +} + +test_cache_tree () { + generate_expected_cache_tree >expect && + cmp_cache_tree expect +} + +test_invalid_cache_tree () { + printf "invalid %s ()\n" "" "$@" >expect && + test-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 +' + +cat >before <<\EOF +SHA (3 entries, 2 subtrees) +SHA dir1/ (1 entries, 0 subtrees) +SHA dir2/ (1 entries, 0 subtrees) +EOF + +cat >expect <<\EOF +invalid (2 subtrees) +invalid dir1/ (0 subtrees) +SHA dir2/ (1 entries, 0 subtrees) +EOF + +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 && + cmp_cache_tree before && + echo "I changed this file" >dir1/a && + git add dir1/a && + 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-scrap-cache-tree && + git write-tree && + test_cache_tree +' + +test_expect_success 'test-scrap-cache-tree works' ' + git read-tree HEAD && + test-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' ' + 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 + (echo p; echo 1; echo; echo s; echo n; echo y; echo q) | + git commit --interactive -m foo && + test_cache_tree +' + +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-scrap-cache-tree && + git reset --hard && + test_cache_tree +' + +test_expect_success 'reset --hard without index gives cache-tree' ' + rm -f .git/index && + 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 && + test_cache_tree +' + +test_expect_success 'no phantom error when switching trees' ' + mkdir newdir && + >newdir/one && + git add newdir/one && + git checkout 2>errors && + ! test -s errors +' + +test_expect_success 'switching trees does not invalidate shared index' ' + git update-index --split-index && + >split && + git add split && + test-dump-split-index .git/index | grep -v ^own >before && + git commit -m "as-is" && + test-dump-split-index .git/index | grep -v ^own >after && + test_cmp before after +' + +test_done |