From e63c0f82c9fa288f3faa73868342295940e00d0a Mon Sep 17 00:00:00 2001
From: Troy Dai <troy.dai@outlook.com>
Date: Sun, 3 Apr 2016 22:03:06 -0700
Subject: [PATCH] Use default version for unresolved MSBuild reference

---
 .../Models/DependencyDescription.cs                          | 5 +++--
 test/dotnet-projectmodel-server.Tests/DthTests.cs            | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/dotnet/commands/dotnet-projectmodel-server/Models/DependencyDescription.cs b/src/dotnet/commands/dotnet-projectmodel-server/Models/DependencyDescription.cs
index 07aa58a64..32c3854e5 100644
--- a/src/dotnet/commands/dotnet-projectmodel-server/Models/DependencyDescription.cs
+++ b/src/dotnet/commands/dotnet-projectmodel-server/Models/DependencyDescription.cs
@@ -5,6 +5,7 @@ using System.Collections.Generic;
 using System.Linq;
 using Microsoft.DotNet.ProjectModel.Compilation;
 using Microsoft.DotNet.ProjectModel.Graph;
+using NuGet.Versioning;
 
 namespace Microsoft.DotNet.ProjectModel.Server.Models
 {
@@ -23,7 +24,7 @@ namespace Microsoft.DotNet.ProjectModel.Server.Models
         public string Type { get; private set; }
 
         public bool Resolved { get; private set; }
-        
+
         public IEnumerable<DependencyItem> Dependencies { get; private set; }
 
         public IEnumerable<DiagnosticMessageView> Errors { get; private set; }
@@ -60,7 +61,7 @@ namespace Microsoft.DotNet.ProjectModel.Server.Models
             {
                 Name = library.Identity.Name,
                 DisplayName = library.Identity.Name,
-                Version = library.Identity.Version?.ToNormalizedString(),
+                Version = (library.Identity.Version ?? new NuGetVersion("1.0.0")).ToNormalizedString(),
                 Type = library.Identity.Type.Value,
                 Resolved = library.Resolved,
                 Path = library.Path,
diff --git a/test/dotnet-projectmodel-server.Tests/DthTests.cs b/test/dotnet-projectmodel-server.Tests/DthTests.cs
index 56969c2e9..4a36cd9f0 100644
--- a/test/dotnet-projectmodel-server.Tests/DthTests.cs
+++ b/test/dotnet-projectmodel-server.Tests/DthTests.cs
@@ -438,12 +438,13 @@ namespace Microsoft.DotNet.ProjectModel.Server.Tests
                 client.Initialize(projectPath);
                 var messages = client.DrainAllMessages();
                 messages.AssertDoesNotContain(MessageTypes.Error);
+                // PrintAllMessages(new[] { messages.RetrieveSingleMessage(MessageTypes.Dependencies) });
                 messages.RetrieveSingleMessage(MessageTypes.Dependencies)
                         .RetrieveDependency("ClassLibrary4")
                         .AssertProperty<object>(
                             "Version",
                             v => !string.IsNullOrEmpty(v.ToString()),
-                            v => "Version string shouldn't be empty.");
+                            v => $"Version string shouldn't be empty. Value [{v.ToString()}]");
             }
         }