From 7907b968f12190ecbbc8b5dda6b6c71643a23081 Mon Sep 17 00:00:00 2001
From: "Leah E. Cole" <6719667+leahecole@users.noreply.github.com>
Date: Mon, 6 Jan 2020 10:07:32 -0800
Subject: [PATCH] Add note in authoring guide about testing (#2683)

Co-authored-by: Bu Sun Kim <8822365+busunkim96@users.noreply.github.com>
---
 AUTHORING_GUIDE.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/AUTHORING_GUIDE.md b/AUTHORING_GUIDE.md
index 5613a0633271..de5177fc31b6 100644
--- a/AUTHORING_GUIDE.md
+++ b/AUTHORING_GUIDE.md
@@ -413,6 +413,8 @@ if __name__ == '__main__':
   standard- these samples are only be tested against Python 2.7.
 * Samples that use App Engine Standard should use the App Engine testbed for
   system testing. See existing App Engine tests for how to use this.
+* All tests should be independent of one another and should create and tear
+  down resources needed to execute. Using UUIDs to avoid resource collision is recommended.
 
 ## Running tests and automated tools