Actually elevate warning messages to error when requested

3 files changed, 23 insertions, 4 deletions

diff --git a/src/api/wix/WixToolset.Data/Message.cs b/src/api/wix/WixToolset.Data/Message.cs
index 85a402e5..ddcff23e 100644
--- a/src/api/wix/WixToolset.Data/Message.cs
+++ b/src/api/wix/WixToolset.Data/Message.cs
@@ -82,6 +82,14 @@ namespace WixToolset.Data
         /// <value>The arguments for the format string.</value>
         public object[] MessageArgs { get; }
 
+        /// <summary>
+        /// Changes the message into an error message.
+        /// </summary>
+        public void ElevateToError()
+        {
+            this.Level = MessageLevel.Error;
+        }
+
         public override string ToString()
         {
             if (this.ResourceManager == null)
diff --git a/src/wix/WixToolset.Core/ExtensibilityServices/Messaging.cs b/src/wix/WixToolset.Core/ExtensibilityServices/Messaging.cs
index afcd9244..280d845c 100644
--- a/src/wix/WixToolset.Core/ExtensibilityServices/Messaging.cs
+++ b/src/wix/WixToolset.Core/ExtensibilityServices/Messaging.cs
@@ -23,11 +23,20 @@ namespace WixToolset.Core.ExtensibilityServices
 
         public bool WarningsAsError { get; set; }
 
-        public void ElevateWarningMessage(int warningNumber) => this.warningsAsErrors.Add(warningNumber);
+        public void ElevateWarningMessage(int warningNumber)
+        {
+            this.warningsAsErrors.Add(warningNumber);
+        }
 
-        public void SetListener(IMessageListener listener) => this.listener = listener;
+        public void SetListener(IMessageListener listener)
+        {
+            this.listener = listener;
+        }
 
-        public void SuppressWarningMessage(int warningNumber) => this.suppressedWarnings.Add(warningNumber);
+        public void SuppressWarningMessage(int warningNumber)
+        {
+            this.suppressedWarnings.Add(warningNumber);
+        }
 
         public void Write(Message message)
         {
@@ -87,6 +96,8 @@ namespace WixToolset.Core.ExtensibilityServices
                 }
                 else if (this.WarningsAsError || this.warningsAsErrors.Contains(message.Id))
                 {
+                    message.ElevateToError();
+
                     level = MessageLevel.Error;
                 }
             }
diff --git a/src/wix/test/WixToolsetTest.CoreIntegration/WarningFixture.cs b/src/wix/test/WixToolsetTest.CoreIntegration/WarningFixture.cs
index c5b6c261..0d5b3b4b 100644
--- a/src/wix/test/WixToolsetTest.CoreIntegration/WarningFixture.cs
+++ b/src/wix/test/WixToolsetTest.CoreIntegration/WarningFixture.cs
@@ -56,7 +56,7 @@ namespace WixToolsetTest.CoreIntegration
                 Assert.Equal((int)WarningMessages.Ids.PathCanonicalized, result.ExitCode);
 
                 var message = Assert.Single(result.Messages);
-                Assert.Equal(MessageLevel.Warning, message.Level); // TODO: is this right?
+                Assert.Equal(MessageLevel.Error, message.Level);
             }
         }
     }