test_cmp expect actual.head
'
+test_expect_success 'diff --no-index from repo subdir with absolute paths' '
+ cat <<-EOF >expect &&
+ 1 1 $(pwd)/non/git/{a => b}
+ EOF
+ test_expect_code 1 \
+ git -C repo/sub diff --numstat \
+ "$(pwd)/non/git/a" "$(pwd)/non/git/b" >actual &&
+ test_cmp expect actual
+'
+
test_done