diff-highlight: use test_tick in graph test

diff --git a/diff.c b/diff.c
index fa77b00492688c67f0cff4d7f1ac54a1868403d4..8406a8324ee281f55f59afbe1406ec1d91c0ca0c 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -2978,7 +2978,7 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
                blob = buf.buf;
                size = buf.len;
        }
-       if (write_in_full(fd, blob, size) != size)
+       if (write_in_full(fd, blob, size) < 0)
                die_errno("unable to write temp-file");
        close_tempfile(&temp->tempfile);
        temp->name = get_tempfile_path(&temp->tempfile);