From 408062dd432e60e1ed09abf8e15532998c0435bf Mon Sep 17 00:00:00 2001
From: Bibo-Joshi <hinrich.mahler@freenet.de>
Date: Wed, 29 Jan 2020 21:43:57 +0100
Subject: [PATCH] Add note on how to run test_official to contrib guide (#1740)

---
 .github/CONTRIBUTING.rst | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/.github/CONTRIBUTING.rst b/.github/CONTRIBUTING.rst
index 0e6b1e60e..40332fc3f 100644
--- a/.github/CONTRIBUTING.rst
+++ b/.github/CONTRIBUTING.rst
@@ -113,6 +113,14 @@ Here's how to make a one-off code change.
 
         $ pytest -v
 
+     To run ``test_official`` (particularly useful if you made API changes), run
+
+     .. code-block::
+
+        $ export TEST_OFFICIAL=True
+
+     prior to running the tests.
+
    - To actually make the commit (this will trigger tests for yapf, lint and pep8 automatically):
 
      .. code-block:: bash