3 test_description="Test whether cache-tree is properly updated
5 Tests whether various commands properly update and/or rewrite the
11 test-tool dump-cache-tree | sed -e '/#(ref)/d' >actual &&
12 sed "s/$OID_REGEX/SHA/" <actual >filtered &&
13 test_cmp "$1" filtered
16 # We don't bother with actually checking the SHA1:
17 # test-tool dump-cache-tree already verifies that all existing data is
19 generate_expected_cache_tree_rec () {
22 # ls-files might have foo/bar, foo/bar/baz, and foo/bar/quux
23 # We want to count only foo because it's the only direct child
24 subtrees=$(git ls-files|grep /|cut -d / -f 1|uniq) &&
25 subtree_count=$(echo "$subtrees"|awk -v c=0 '$1 != "" {++c} END {print c}') &&
26 entries=$(git ls-files|wc -l) &&
27 printf "SHA $dir (%d entries, %d subtrees)\n" "$entries" "$subtree_count" &&
28 for subtree in $subtrees
31 generate_expected_cache_tree_rec "$dir$subtree" "$dir" || return 1
37 generate_expected_cache_tree () {
39 generate_expected_cache_tree_rec
44 generate_expected_cache_tree >expect &&
48 test_invalid_cache_tree () {
49 printf "invalid %s ()\n" "" "$@" >expect &&
50 test-tool dump-cache-tree |
51 sed -n -e "s/[0-9]* subtrees//" -e '/#(ref)/d' -e '/^invalid /p' >actual &&
52 test_cmp expect actual
55 test_no_cache_tree () {
60 test_expect_success 'initial commit has cache-tree' '
65 test_expect_success 'read-tree HEAD establishes cache-tree' '
70 test_expect_success 'git-add invalidates cache-tree' '
71 test_when_finished "git reset --hard; git read-tree HEAD" &&
72 echo "I changed this file" >foo &&
74 test_invalid_cache_tree
77 test_expect_success 'git-add in subdir invalidates cache-tree' '
78 test_when_finished "git reset --hard; git read-tree HEAD" &&
80 echo "I changed this file" >dirx/foo &&
82 test_invalid_cache_tree
86 SHA (3 entries, 2 subtrees)
87 SHA dir1/ (1 entries, 0 subtrees)
88 SHA dir2/ (1 entries, 0 subtrees)
93 invalid dir1/ (0 subtrees)
94 SHA dir2/ (1 entries, 0 subtrees)
97 test_expect_success 'git-add in subdir does not invalidate sibling cache-tree' '
98 git tag no-children &&
99 test_when_finished "git reset --hard no-children; git read-tree HEAD" &&
101 test_commit dir1/a &&
102 test_commit dir2/b &&
103 echo "I changed this file" >dir1/a &&
104 cmp_cache_tree before &&
105 echo "I changed this file" >dir1/a &&
107 cmp_cache_tree expect
110 test_expect_success 'update-index invalidates cache-tree' '
111 test_when_finished "git reset --hard; git read-tree HEAD" &&
112 echo "I changed this file" >foo &&
113 git update-index --add foo &&
114 test_invalid_cache_tree
117 test_expect_success 'write-tree establishes cache-tree' '
118 test-tool scrap-cache-tree &&
123 test_expect_success 'test-tool scrap-cache-tree works' '
124 git read-tree HEAD &&
125 test-tool scrap-cache-tree &&
129 test_expect_success 'second commit has cache-tree' '
134 test_expect_success PERL 'commit --interactive gives cache-tree on partial commit' '
135 cat <<-\EOT >foo.c &&
146 test_invalid_cache_tree &&
147 git commit -m "add a file" &&
149 cat <<-\EOT >foo.c &&
159 test_write_lines p 1 "" s n y q |
160 git commit --interactive -m foo &&
164 test_expect_success PERL 'commit -p with shrinking cache-tree' '
165 mkdir -p deep/subdir &&
166 echo content >deep/subdir/file &&
171 before=$(wc -c <.git/index) &&
172 git commit -m delete -p &&
173 after=$(wc -c <.git/index) &&
175 # double check that the index shrank
176 test $before -gt $after &&
178 # and that our index was not corrupted
182 test_expect_success 'commit in child dir has cache-tree' '
185 git add dir/child.t &&
186 git commit -m dir/child.t &&
190 test_expect_success 'reset --hard gives cache-tree' '
191 test-tool scrap-cache-tree &&
196 test_expect_success 'reset --hard without index gives cache-tree' '
202 test_expect_success 'checkout gives cache-tree' '
204 git checkout HEAD^ &&
208 test_expect_success 'checkout -b gives cache-tree' '
209 git checkout current &&
210 git checkout -b prev HEAD^ &&
214 test_expect_success 'checkout -B gives cache-tree' '
215 git checkout current &&
216 git checkout -B prev HEAD^ &&
220 test_expect_success 'merge --ff-only maintains cache-tree' '
221 git checkout current &&
222 git checkout -b changes &&
223 test_commit llamas &&
224 test_commit pachyderm &&
226 git checkout current &&
228 git merge --ff-only changes &&
232 test_expect_success 'merge maintains cache-tree' '
233 git checkout current &&
234 git checkout -b changes2 &&
235 test_commit alpacas &&
237 git checkout current &&
238 test_commit struthio &&
240 git merge changes2 &&
244 test_expect_success 'partial commit gives cache-tree' '
245 git checkout -b partial no-children &&
248 echo "some change" >one.t &&
250 echo "some other change" >two.t &&
251 git commit two.t -m partial &&
255 test_expect_success 'no phantom error when switching trees' '
258 git add newdir/one &&
259 git checkout 2>errors &&
260 test_must_be_empty errors
263 test_expect_success 'switching trees does not invalidate shared index' '
265 sane_unset GIT_TEST_SPLIT_INDEX &&
266 git update-index --split-index &&
269 test-tool dump-split-index .git/index | grep -v ^own >before &&
270 git commit -m "as-is" &&
271 test-tool dump-split-index .git/index | grep -v ^own >after &&
272 test_cmp before after