From 14a90bfa3ae33f8a4e767590d266682fd33662aa Mon Sep 17 00:00:00 2001
From: Jeff Geerling <geerlingguy@mac.com>
Date: Thu, 23 Feb 2017 22:25:06 -0600
Subject: [PATCH] Check if Docker is running inside Docker. Dockerception.

---
 .travis.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index e05159b..908ebe4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -36,7 +36,8 @@ script:
     && (echo 'Idempotence test: pass' && exit 0)
     || (echo 'Idempotence test: fail' && exit 1)
 
-  # TODO: Test whether Docker is running correctly.
+  # Test whether Docker is running correctly (Dockerception!).
+  - docker exec --tty "$(cat ${container_id})" docker run hello-world
 
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