1 files changed, 84 insertions, 0 deletions
diff --git a/t/t0004-unwritable.sh b/t/t0004-unwritable.sh
new file mode 100755
index 0000000..8114fac
--- /dev/null
+++ b/t/t0004-unwritable.sh
@@ -0,0 +1,84 @@
+#!/bin/sh
+
+test_description='detect unwritable repository and fail correctly'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+test_expect_success setup '
+
+	>file &&
+	git add file &&
+	test_tick &&
+	git commit -m initial &&
+	echo >file &&
+	git add file
+
+'
+
+test_expect_success POSIXPERM,SANITY 'write-tree should notice unwritable repository' '
+	test_when_finished "chmod 775 .git/objects .git/objects/??" &&
+	chmod a-w .git/objects .git/objects/?? &&
+	test_must_fail git write-tree 2>out.write-tree
+'
+
+test_lazy_prereq WRITE_TREE_OUT 'test -e "$TRASH_DIRECTORY"/out.write-tree'
+test_expect_success WRITE_TREE_OUT 'write-tree output on unwritable repository' '
+	cat >expect <<-\EOF &&
+	error: insufficient permission for adding an object to repository database .git/objects
+	fatal: git-write-tree: error building trees
+	EOF
+	test_cmp expect out.write-tree
+'
+
+test_expect_success POSIXPERM,SANITY 'commit should notice unwritable repository' '
+	test_when_finished "chmod 775 .git/objects .git/objects/??" &&
+	chmod a-w .git/objects .git/objects/?? &&
+	test_must_fail git commit -m second 2>out.commit
+'
+
+test_lazy_prereq COMMIT_OUT 'test -e "$TRASH_DIRECTORY"/out.commit'
+test_expect_success COMMIT_OUT 'commit output on unwritable repository' '
+	cat >expect <<-\EOF &&
+	error: insufficient permission for adding an object to repository database .git/objects
+	error: Error building trees
+	EOF
+	test_cmp expect out.commit
+'
+
+test_expect_success POSIXPERM,SANITY 'update-index should notice unwritable repository' '
+	test_when_finished "chmod 775 .git/objects .git/objects/??" &&
+	echo 6O >file &&
+	chmod a-w .git/objects .git/objects/?? &&
+	test_must_fail git update-index file 2>out.update-index
+'
+
+test_lazy_prereq UPDATE_INDEX_OUT 'test -e "$TRASH_DIRECTORY"/out.update-index'
+test_expect_success UPDATE_INDEX_OUT 'update-index output on unwritable repository' '
+	cat >expect <<-\EOF &&
+	error: insufficient permission for adding an object to repository database .git/objects
+	error: file: failed to insert into database
+	fatal: Unable to process path file
+	EOF
+	test_cmp expect out.update-index
+'
+
+test_expect_success POSIXPERM,SANITY 'add should notice unwritable repository' '
+	test_when_finished "chmod 775 .git/objects .git/objects/??" &&
+	echo b >file &&
+	chmod a-w .git/objects .git/objects/?? &&
+	test_must_fail git add file 2>out.add
+'
+
+test_lazy_prereq ADD_OUT 'test -e "$TRASH_DIRECTORY"/out.add'
+test_expect_success ADD_OUT 'add output on unwritable repository' '
+	cat >expect <<-\EOF &&
+	error: insufficient permission for adding an object to repository database .git/objects
+	error: file: failed to insert into database
+	error: unable to index file '\''file'\''
+	fatal: updating files failed
+	EOF
+	test_cmp expect out.add
+'
+
+test_done