cache-tree: verify valid cache-tree in the test suite
This makes sure that cache-tree is consistent with the index. The main
purpose is to catch potential problems by saving the index in
unpack_trees() but the line in write_index() would also help spot
missing invalidation in other code.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 78f7097..5b50f6e 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -1083,6 +1083,12 @@
test_set_prereq C_LOCALE_OUTPUT
fi
+if test -z "$GIT_TEST_CHECK_CACHE_TREE"
+then
+ GIT_TEST_CHECK_CACHE_TREE=true
+ export GIT_TEST_CHECK_CACHE_TREE
+fi
+
test_lazy_prereq PIPE '
# test whether the filesystem supports FIFOs
test_have_prereq !MINGW,!CYGWIN &&
