cache-tree: verify valid cache-tree in the test suite

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 78f7097746fc88f1de5321e5f78d9aec8c5e0b5f..5b50f6e2e67238d94a470af3de8e5f3711776d39 100644 (file)
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -1083,6 +1083,12 @@ else
        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 &&