1 files changed, 115 insertions, 0 deletions

diff --git a/src/api/burn/test/WixToolsetTest.BootstrapperApplicationApi/VerUtilFixture.cs b/src/api/burn/test/WixToolsetTest.BootstrapperApplicationApi/VerUtilFixture.cs
new file mode 100644
index 00000000..1eeec941
--- /dev/null
+++ b/src/api/burn/test/WixToolsetTest.BootstrapperApplicationApi/VerUtilFixture.cs
@@ -0,0 +1,115 @@
+// 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.BootstrapperApplicationApi
+{
+    using System;
+    using WixToolset.BootstrapperApplicationApi;
+    using Xunit;
+
+    public class VerUtilFixture
+    {
+        [Fact]
+        public void CanCompareStringVersions()
+        {
+            var version1 = "1.2.3.4+abcd";
+            var version2 = "1.2.3.4+zyxw";
+
+            Assert.Equal(0, VerUtil.CompareStringVersions(version1, version2, strict: false));
+        }
+
+        [Fact]
+        public void CanCopyVersion()
+        {
+            var version = "1.2.3.4-5.6.7.8.9.0";
+
+            VerUtilVersion copiedVersion = null;
+            try
+            {
+                using (var parsedVersion = VerUtil.ParseVersion(version, strict: true))
+                {
+                    copiedVersion = VerUtil.CopyVersion(parsedVersion);
+                }
+
+                using (var secondVersion = VerUtil.ParseVersion(version, strict: true))
+                {
+                    Assert.Equal(0, VerUtil.CompareParsedVersions(copiedVersion, secondVersion));
+                }
+            }
+            finally
+            {
+                copiedVersion?.Dispose();
+            }
+        }
+
+        [Fact]
+        public void CanCreateFromQword()
+        {
+            var version = new Version(100, 200, 300, 400);
+            var qwVersion = VersionToLong(version);
+
+            using var parsedVersion = VerUtil.VersionFromQword(qwVersion);
+            Assert.Equal("100.200.300.400", parsedVersion.Version);
+            Assert.Equal('\0', parsedVersion.Prefix);
+            Assert.Equal(100u, parsedVersion.Major);
+            Assert.Equal(200u, parsedVersion.Minor);
+            Assert.Equal(300u, parsedVersion.Patch);
+            Assert.Equal(400u, parsedVersion.Revision);
+            Assert.Empty(parsedVersion.ReleaseLabels);
+            Assert.Equal("", parsedVersion.Metadata);
+            Assert.False(parsedVersion.IsInvalid);
+            Assert.True(parsedVersion.HasMajor);
+            Assert.True(parsedVersion.HasMinor);
+            Assert.True(parsedVersion.HasPatch);
+            Assert.True(parsedVersion.HasRevision);
+        }
+
+        [Fact]
+        public void CanParseVersion()
+        {
+            var version = "1.2.3.4-a.b.c.d.5.+abc123";
+
+            using var parsedVersion = VerUtil.ParseVersion(version, strict: false);
+            Assert.Equal(version, parsedVersion.Version);
+            Assert.Equal('\0', parsedVersion.Prefix);
+            Assert.Equal(1u, parsedVersion.Major);
+            Assert.Equal(2u, parsedVersion.Minor);
+            Assert.Equal(3u, parsedVersion.Patch);
+            Assert.Equal(4u, parsedVersion.Revision);
+            Assert.Equal(5, parsedVersion.ReleaseLabels.Length);
+            Assert.Equal("+abc123", parsedVersion.Metadata);
+            Assert.True(parsedVersion.IsInvalid);
+            Assert.True(parsedVersion.HasMajor);
+            Assert.True(parsedVersion.HasMinor);
+            Assert.True(parsedVersion.HasPatch);
+            Assert.True(parsedVersion.HasRevision);
+
+            Assert.Equal("a", parsedVersion.ReleaseLabels[0].Label);
+            Assert.False(parsedVersion.ReleaseLabels[0].IsNumeric);
+
+            Assert.Equal("b", parsedVersion.ReleaseLabels[1].Label);
+            Assert.False(parsedVersion.ReleaseLabels[1].IsNumeric);
+
+            Assert.Equal("c", parsedVersion.ReleaseLabels[2].Label);
+            Assert.False(parsedVersion.ReleaseLabels[2].IsNumeric);
+
+            Assert.Equal("d", parsedVersion.ReleaseLabels[3].Label);
+            Assert.False(parsedVersion.ReleaseLabels[3].IsNumeric);
+
+            Assert.Equal("5", parsedVersion.ReleaseLabels[4].Label);
+            Assert.True(parsedVersion.ReleaseLabels[4].IsNumeric);
+            Assert.Equal(5u, parsedVersion.ReleaseLabels[4].Value);
+        }
+
+        private static long VersionToLong(Version version)
+        {
+            // In Windows, each version component has a max value of 65535,
+            // so we truncate the version before shifting it, which will overflow if invalid.
+            long major = (long)(ushort)version.Major << 48;
+            long minor = (long)(ushort)version.Minor << 32;
+            long build = (long)(ushort)version.Build << 16;
+            long revision = (long)(ushort)version.Revision;
+
+            return major | minor | build | revision;
+        }
+    }
+}