From 0237bd513784a078cf936bb3aee637a1c927d546 Mon Sep 17 00:00:00 2001
From: Claus Wilke <wilke@austin.utexas.edu>
Date: Thu, 10 Dec 2020 14:28:44 -0600
Subject: [PATCH] forgot to add

---
 tests/testthat/helper-vdiffr.R | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 tests/testthat/helper-vdiffr.R

diff --git a/tests/testthat/helper-vdiffr.R b/tests/testthat/helper-vdiffr.R
new file mode 100644
index 0000000..8c45b0f
--- /dev/null
+++ b/tests/testthat/helper-vdiffr.R
@@ -0,0 +1,4 @@
+expect_doppelganger <- function(title, fig, path = NULL, ...) {
+  testthat::skip_if_not_installed("vdiffr")
+  vdiffr::expect_doppelganger(title, fig, path = path, ...)
+}