public void PackageReader_LegacyFolders()
        {
            // Verify legacy folder names such as 40 and 35 parse to frameworks
            using (var packageFile = TestPackagesCore.GetLegacyFolderPackage())
            {
                var zip = TestPackagesCore.GetZip(packageFile);

                using (PackageArchiveReader reader = new PackageArchiveReader(zip))
                {
                    var groups = reader.GetReferenceItems().ToArray();

                    Assert.Equal(4, groups.Count());

                    Assert.Equal(NuGetFramework.AnyFramework, groups[0].TargetFramework);
                    Assert.Equal("lib/a.dll", groups[0].Items.ToArray()[0]);

                    Assert.Equal(NuGetFramework.Parse("net35"), groups[1].TargetFramework);
                    Assert.Equal("lib/35/b.dll", groups[1].Items.ToArray()[0]);

                    Assert.Equal(NuGetFramework.Parse("net4"), groups[2].TargetFramework);
                    Assert.Equal("lib/40/test40.dll", groups[2].Items.ToArray()[0]);
                    Assert.Equal("lib/40/x86/testx86.dll", groups[2].Items.ToArray()[1]);

                    Assert.Equal(NuGetFramework.Parse("net45"), groups[3].TargetFramework);
                    Assert.Equal("lib/45/a.dll", groups[3].Items.ToArray()[0]);
                }
            }
        }