From bafde7738f16553a6f78e19263d40c9c83288066 Mon Sep 17 00:00:00 2001
From: BrennanConroy <brecon@microsoft.com>
Date: Thu, 28 Jun 2018 09:31:42 -0700
Subject: [PATCH] Harden docker detection (#2552)

---
 .../Docker.cs                                       | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/test/Microsoft.AspNetCore.SignalR.Redis.Tests/Docker.cs b/test/Microsoft.AspNetCore.SignalR.Redis.Tests/Docker.cs
index b2691a5fa1..94b19673e7 100644
--- a/test/Microsoft.AspNetCore.SignalR.Redis.Tests/Docker.cs
+++ b/test/Microsoft.AspNetCore.SignalR.Redis.Tests/Docker.cs
@@ -37,15 +37,12 @@ namespace Microsoft.AspNetCore.SignalR.Redis.Tests
 
             var docker = new Docker(location);
 
-            // Windows docker must have Linux containers turned on, if they don't skip the docker tests
-            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
-            {
-                docker.RunCommand("info --format '{{.OSType}}'", out var output);
+            docker.RunCommand("info --format '{{.OSType}}'", out var output);
 
-                if (!string.Equals(output, "linux"))
-                {
-                    return null;
-                }
+            if (!string.Equals(output.Trim('\'', '"', '\r', '\n', ' '), "linux"))
+            {
+                Console.WriteLine($"'docker info' output: {output}");
+                return null;
             }
 
             return docker;