From 8da600cfd93586ee15e5c5389cfd57aa6eeb69df Mon Sep 17 00:00:00 2001
From: Eduard-Mihai Burtescu <edy.burt@gmail.com>
Date: Fri, 23 Nov 2018 00:43:52 +0200
Subject: [PATCH] Set the __CARGO_TEST_ROOT env variable for during tests.

---
 tests/support/mod.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/support/mod.rs b/tests/support/mod.rs
index 8326e79e935..706ef450fdc 100644
--- a/tests/support/mod.rs
+++ b/tests/support/mod.rs
@@ -375,6 +375,7 @@ impl Project {
                 .stdin(Stdio::piped())
                 .stdout(Stdio::piped())
                 .current_dir(self.root())
+                .env("__CARGO_TEST_ROOT", self.root())
                 .spawn()
                 .unwrap(),
         )