From e98cdd9a35fd0978c8ea556e7079deff59ad67d6 Mon Sep 17 00:00:00 2001
From: Carl-Oskar Larsson <carloskar.larsson@gmail.com>
Date: Sun, 16 Jun 2019 15:11:14 +0200
Subject: [PATCH] Added note about running tests with one test thread.

---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index e895727..d05ba85 100644
--- a/README.md
+++ b/README.md
@@ -104,3 +104,12 @@ cargo build --release
 inside the root directory of this project. The resulting binary will
 be located in `./target/release/`.
 
+Tests **must** be run using one test thread because of race conditions when changing environment variables:
+```bash
+# Run all tests
+cargo test -- --test-threads=1
+# Run only unit tests
+cargo test test -- --test-threads=1
+# Run only integration tests
+cargo test integration -- --test-threads=1
+```