2 files changed, 113 insertions, 0 deletions

diff --git a/src/WixToolset.Converters/WixConverter.cs b/src/WixToolset.Converters/WixConverter.cs
index c18b095e..a05c7f58 100644
--- a/src/WixToolset.Converters/WixConverter.cs
+++ b/src/WixToolset.Converters/WixConverter.cs
@@ -481,6 +481,32 @@ namespace WixToolset.Converters
 
         private void ConvertFeatureElement(XElement element)
         {
+            var xAbsent = element.Attribute("Absent");
+            if (xAbsent != null &&
+                this.OnError(ConverterTestType.FeatureAbsentAttributeReplaced, element, "The Feature element's Absent attribute has been replaced with the AllowAbsent attribute. Use the 'AllowAbsent' attribute instead."))
+            {
+                if (xAbsent.Value == "allow")
+                {
+                    element.Add(new XAttribute("AllowAbsent", "yes"));
+                }
+                xAbsent.Remove();
+            }
+
+            var xAllowAdvertise = element.Attribute("AllowAdvertise");
+            if (xAllowAdvertise != null)
+            {
+                if ((xAllowAdvertise.Value == "system" || xAllowAdvertise.Value == "allow") &&
+                    this.OnError(ConverterTestType.FeatureAllowAdvertiseValueDeprecated, element, "The AllowAdvertise attribute's '{0}' value deprecated. Set the value to 'yes' instead.", xAllowAdvertise.Value))
+                {
+                    xAllowAdvertise.Value = "yes";
+                }
+                else if (xAllowAdvertise.Value == "disallow" &&
+                    this.OnError(ConverterTestType.FeatureAllowAdvertiseValueDeprecated, element, "The AllowAdvertise attribute's '{0}' value deprecated. Remove the value instead.", xAllowAdvertise.Value))
+                {
+                    xAllowAdvertise.Remove();
+                }
+            }
+
             var xCondition = element.Element(ConditionElementName);
             if (xCondition != null)
             {
@@ -1132,6 +1158,16 @@ namespace WixToolset.Converters
             /// Displayed when the XML declaration is present in the source file.
             /// </summary>
             DeclarationPresent,
+
+            /// <summary>
+            /// The Feature Absent attribute renamed to AllowAbsent.
+            /// </summary>
+            FeatureAbsentAttributeReplaced,
+
+            /// <summary>
+            /// The Feature AllowAdvertise attribute value deprecated.
+            /// </summary>
+            FeatureAllowAdvertiseValueDeprecated,
         }
     }
 }
diff --git a/src/test/WixToolsetTest.Converters/FeatureFixture.cs b/src/test/WixToolsetTest.Converters/FeatureFixture.cs
new file mode 100644
index 00000000..9d943773
--- /dev/null
+++ b/src/test/WixToolsetTest.Converters/FeatureFixture.cs
@@ -0,0 +1,77 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolsetTest.Converters
+{
+    using System;
+    using System.Xml.Linq;
+    using WixToolset.Converters;
+    using WixToolsetTest.Converters.Mocks;
+    using Xunit;
+
+    public class FeatureFixture : BaseConverterFixture
+    {
+        [Fact]
+        public void FixAllowAttributes()
+        {
+            var parse = String.Join(Environment.NewLine,
+                "<?xml version=\"1.0\" encoding=\"utf-16\"?>",
+                "<Wix xmlns='http://schemas.microsoft.com/wix/2006/wi'>",
+                "  <Fragment>",
+                "    <Feature Absent='allow' AllowAdvertise='system' />",
+                "  </Fragment>",
+                "</Wix>");
+
+            var expected = new[]
+            {
+                "<Wix xmlns=\"http://wixtoolset.org/schemas/v4/wxs\">",
+                "  <Fragment>",
+                "    <Feature AllowAdvertise=\"yes\" AllowAbsent=\"yes\" />",
+                "  </Fragment>",
+                "</Wix>"
+            };
+
+            var document = XDocument.Parse(parse, LoadOptions.PreserveWhitespace | LoadOptions.SetLineInfo);
+
+            var messaging = new MockMessaging();
+            var converter = new WixConverter(messaging, 2, null, null);
+
+            var errors = converter.ConvertDocument(document);
+            Assert.Equal(4, errors);
+
+            var actualLines = UnformattedDocumentLines(document);
+            CompareLineByLine(expected, actualLines);
+        }
+
+        [Fact]
+        public void RemoveDeprecatedAllowAdvertiseAttributes()
+        {
+            var parse = String.Join(Environment.NewLine,
+                "<?xml version=\"1.0\" encoding=\"utf-16\"?>",
+                "<Wix xmlns='http://schemas.microsoft.com/wix/2006/wi'>",
+                "  <Fragment>",
+                "    <Feature AllowAdvertise='disallow' />",
+                "  </Fragment>",
+                "</Wix>");
+
+            var expected = new[]
+            {
+                "<Wix xmlns=\"http://wixtoolset.org/schemas/v4/wxs\">",
+                "  <Fragment>",
+                "    <Feature />",
+                "  </Fragment>",
+                "</Wix>"
+            };
+
+            var document = XDocument.Parse(parse, LoadOptions.PreserveWhitespace | LoadOptions.SetLineInfo);
+
+            var messaging = new MockMessaging();
+            var converter = new WixConverter(messaging, 2, null, null);
+
+            var errors = converter.ConvertDocument(document);
+            Assert.Equal(3, errors);
+
+            var actualLines = UnformattedDocumentLines(document);
+            CompareLineByLine(expected, actualLines);
+        }
+    }
+}