From fc1968b61cd75ffcfb59a082546f402174ac2c60 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philip=20J=C3=A4genstedt?= <philip@foolip.org>
Date: Tue, 4 Oct 2016 18:23:00 +0200
Subject: [PATCH] Meta: appreciate web-platform-tests for normative changes

Part of #1849.
---
 CONTRIBUTING.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 7f6e807d1c8..cf9b61df307 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -18,6 +18,10 @@ Please add your name to the Acknowledgements section (search for `<!-- ACKS`) in
 
 To preview your changes locally, follow the instructions in the [html-build repository](https://github.com/whatwg/html-build).
 
+#### Tests
+
+For normative changes, a corresponding [web-platform-tests](https://github.com/w3c/web-platform-tests) PR is highly appreciated. The author and reviewer can be different than for the spec change. If testing is not practical, please explain why and if appropriate file an issue to follow up later.
+
 #### Formatting
 
 Use a column width of 100 characters and add newlines where whitespace is used. (Emacs, set `fill-column` to `100`; in Vim, set `textwidth` to `100`; and in Sublime, set `wrap_width` to `100`.)