From d74040786c71d3a0e37ce8fadea52612f2826e8a Mon Sep 17 00:00:00 2001
From: "Chris Ross (ASP.NET)" <chrross@microsoft.com>
Date: Wed, 3 May 2017 09:40:07 -0700
Subject: [PATCH] #1053 Prevent IISExpressDeployer.Dispose nullref if the
 process failed to start

---
 .../Deployers/IISExpressDeployer.cs                             | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Microsoft.AspNetCore.Server.IntegrationTesting/Deployers/IISExpressDeployer.cs b/src/Microsoft.AspNetCore.Server.IntegrationTesting/Deployers/IISExpressDeployer.cs
index 6f0ad80e42..bf056a382c 100644
--- a/src/Microsoft.AspNetCore.Server.IntegrationTesting/Deployers/IISExpressDeployer.cs
+++ b/src/Microsoft.AspNetCore.Server.IntegrationTesting/Deployers/IISExpressDeployer.cs
@@ -301,7 +301,7 @@ namespace Microsoft.AspNetCore.Server.IntegrationTesting
 
             // If by this point, the host process is still running (somehow), throw an error.
             // A test failure is better than a silent hang and unknown failure later on
-            if (!_hostProcess.HasExited)
+            if (_hostProcess != null && !_hostProcess.HasExited)
             {
                 throw new Exception($"iisexpress Process {_hostProcess.Id} failed to shutdown");
             }