3 files changed, 29 insertions, 0 deletions

diff --git a/src/wix/test/WixToolsetTest.CoreIntegration/TestData/DefaultMajorUpgradeOverride/DefaultMajorUpgrade.wxs b/src/wix/test/WixToolsetTest.CoreIntegration/TestData/DefaultMajorUpgradeOverride/DefaultMajorUpgrade.wxs
new file mode 100644
index 00000000..ce9fd96f
--- /dev/null
+++ b/src/wix/test/WixToolsetTest.CoreIntegration/TestData/DefaultMajorUpgradeOverride/DefaultMajorUpgrade.wxs
@@ -0,0 +1,12 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
+    <Package Name="MajorUpgradeDowngradeMessage" Language="1033" Version="2.0.0" Manufacturer="Example Corporation" UpgradeCode="7ab24276-c628-43db-9e65-a184d052909b" Scope="perMachine">
+        <Feature Id="ProductFeature" Title="MsiPackageTitle">
+        </Feature>
+    </Package>
+
+    <Fragment>
+        <StandardDirectory Id="ProgramFiles6432Folder">
+            <Directory Id="INSTALLFOLDER" Name="MsiPackage" />
+        </StandardDirectory>
+    </Fragment>
+</Wix>
diff --git a/src/wix/test/WixToolsetTest.CoreIntegration/TestData/DefaultMajorUpgradeOverride/Package.en-us.wxl b/src/wix/test/WixToolsetTest.CoreIntegration/TestData/DefaultMajorUpgradeOverride/Package.en-us.wxl
new file mode 100644
index 00000000..515a7e8e
--- /dev/null
+++ b/src/wix/test/WixToolsetTest.CoreIntegration/TestData/DefaultMajorUpgradeOverride/Package.en-us.wxl
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization xmlns="http://wixtoolset.org/schemas/v4/wxl" Culture="en-US">
+  <String Id="WixDowngradePreventedMessage" Value="[ProductName] does not support downgrading." />
+</WixLocalization>
diff --git a/src/wix/test/WixToolsetTest.CoreIntegration/UpgradeFixture.cs b/src/wix/test/WixToolsetTest.CoreIntegration/UpgradeFixture.cs
index 1ae74210..72d09b63 100644
--- a/src/wix/test/WixToolsetTest.CoreIntegration/UpgradeFixture.cs
+++ b/src/wix/test/WixToolsetTest.CoreIntegration/UpgradeFixture.cs
@@ -74,6 +74,19 @@ namespace WixToolsetTest.CoreIntegration
         }
 
         [Fact]
+        public void CanOverrideDefaultMajorUpgradeLaunchConditionMessage()
+        {
+            var folder = TestData.Get("TestData", "DefaultMajorUpgradeOverride");
+            var build = new Builder(folder, new Type[] { }, new[] { folder });
+
+            var results = build.BuildAndQuery(Build, "LaunchCondition");
+            WixAssert.CompareLineByLine(new[]
+            {
+                "LaunchCondition:NOT WIX_DOWNGRADE_DETECTED\t[ProductName] does not support downgrading.",
+            }, results);
+        }
+
+        [Fact]
         public void UpgradeStrategyNoneDoesNotCreateDefaultMajorUpgrade()
         {
             var folder = TestData.Get("TestData", "DefaultMajorUpgradeNone");