Upgrade tests to v6.0.0-beta.2

cburgdorf · pipermerriam · commit 04ac2a594b6d · 2018-12-10T13:34:40.000-07:00
diff --git a/fixtures b/fixtures
@@ -1 +1 @@
-Subproject commit 95a309203890e6244c6d4353ca411671973c13b5
+Subproject commit 420f443477caa8516f1f9ee8122fafc3415c0f34
