1 files changed, 112 insertions, 0 deletions

diff --git a/src/test/WixToolsetTest.CoreIntegration/PatchFixture.cs b/src/test/WixToolsetTest.CoreIntegration/PatchFixture.cs
new file mode 100644
index 00000000..584f86fe
--- /dev/null
+++ b/src/test/WixToolsetTest.CoreIntegration/PatchFixture.cs
@@ -0,0 +1,112 @@
+// 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.CoreIntegration
+{
+    using System.ComponentModel;
+    using System.IO;
+    using System.Linq;
+    using System.Runtime.InteropServices;
+    using System.Text;
+    using System.Xml.Linq;
+    using WixBuildTools.TestSupport;
+    using WixToolset.Core.TestPackage;
+    using Xunit;
+
+    public class PatchFixture
+    {
+        private static readonly XNamespace PatchNamespace = "http://www.microsoft.com/msi/patch_applicability.xsd";
+
+        [Fact(Skip = "Skip until patches have files in them")]
+        public void CanBuildSimplePatch()
+        {
+            var folder = TestData.Get(@"TestData\PatchSingle");
+
+            using (var fs = new DisposableFileSystem())
+            {
+                var tempFolder = fs.GetFolder();
+
+                var baselinePdb = BuildMsi("Baseline.msi", folder, tempFolder, "1.0.0", "1.0.0", "1.0.0");
+                var update1Pdb = BuildMsi("Update.msi", folder, tempFolder, "1.0.1", "1.0.1", "1.0.1");
+                var patchPdb = BuildMsp("Patch1.msp", folder, tempFolder, "1.0.1");
+                var baselinePath = Path.ChangeExtension(baselinePdb, ".msp");
+                var patchPath = Path.ChangeExtension(patchPdb, ".msp");
+
+                Assert.True(File.Exists(baselinePdb));
+                Assert.True(File.Exists(update1Pdb));
+
+                var doc = GetExtractPatchXml(patchPath);
+                Assert.Equal("{7D326855-E790-4A94-8611-5351F8321FCA}", doc.Root.Element(PatchNamespace + "TargetProductCode").Value);
+
+                var names = Query.GetSubStorageNames(patchPath);
+                Assert.Equal(new[] { "#RTM.1", "RTM.1" }, names);
+
+                var cab = Path.Combine(tempFolder, "foo.cab");
+                Query.ExtractStream(patchPath, "foo.cab", cab);
+                Assert.True(File.Exists(cab));
+
+                var files = Query.GetCabinetFiles(cab);
+                Assert.Equal(new[] { "a", "b" }, files.Select(f => f.ArchiveName).ToArray()); // This test may not be quite correct, yet.
+            }
+        }
+
+        private static string BuildMsi(string outputName, string sourceFolder, string baseFolder, string defineV, string defineA, string defineB)
+        {
+            var outputPath = Path.Combine(baseFolder, Path.Combine("bin", outputName));
+
+            var result = WixRunner.Execute(new[]
+            {
+                "build",
+                Path.Combine(sourceFolder, @"Package.wxs"),
+                "-d", "V=" + defineV,
+                "-d", "A=" + defineA,
+                "-d", "B=" + defineB,
+                "-bindpath", Path.Combine(sourceFolder, ".data"),
+                "-intermediateFolder", Path.Combine(baseFolder, "obj"),
+                "-o", outputPath
+            });
+
+            result.AssertSuccess();
+
+            return Path.ChangeExtension(outputPath, ".wixpdb");
+        }
+
+        private static string BuildMsp(string outputName, string sourceFolder, string baseFolder, string defineV)
+        {
+            var outputPath = Path.Combine(baseFolder, Path.Combine("bin", outputName));
+
+            var result = WixRunner.Execute(new[]
+            {
+                "build",
+                Path.Combine(sourceFolder, @"Patch.wxs"),
+                "-d", "V=" + defineV,
+                "-bindpath", Path.Combine(baseFolder, "bin"),
+                "-intermediateFolder", Path.Combine(baseFolder, "obj"),
+                "-o", outputPath
+            });
+
+            result.AssertSuccess();
+
+            return Path.ChangeExtension(outputPath, ".wixpdb");
+        }
+
+        private static XDocument GetExtractPatchXml(string path)
+        {
+            var buffer = new StringBuilder(65535);
+            var size = buffer.Capacity;
+
+            var er = MsiExtractPatchXMLData(path, 0, buffer, ref size);
+            if (er != 0)
+            {
+                throw new Win32Exception(er);
+            }
+
+            return XDocument.Parse(buffer.ToString());
+        }
+
+        [DllImport("msi.dll", EntryPoint = "MsiExtractPatchXMLDataW", CharSet = CharSet.Unicode, ExactSpelling = true)]
+        private static extern int MsiExtractPatchXMLData(string szPatchPath, int dwReserved, StringBuilder szXMLData, ref int pcchXMLData);
+
+        [DllImport("msi.dll", EntryPoint = "MsiApplyPatchW", CharSet = CharSet.Unicode, ExactSpelling = true)]
+        private static extern int MsiApplyPatch(string szPatchPackage, string szInstallPackage, int eInstallType, string szCommandLine);
+    }
+}