public void PackageReader_ReferencesWithoutGroups()
        {
            using (var packageFile = TestPackagesCore.GetLegacyTestPackageWithPre25References())
            {
                var zip = TestPackagesCore.GetZip(packageFile);

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

                    Assert.Equal(3, groups.Count());

                    Assert.Equal(NuGetFramework.AnyFramework, groups[0].TargetFramework);
                    Assert.Equal(1, groups[0].Items.Count());
                    Assert.Equal("lib/test.dll", groups[0].Items.Single());

                    Assert.Equal(NuGetFramework.Parse("net40"), groups[1].TargetFramework);
                    Assert.Equal(1, groups[1].Items.Count());
                    Assert.Equal("lib/net40/test.dll", groups[1].Items.Single());

                    Assert.Equal(NuGetFramework.Parse("net451"), groups[2].TargetFramework);
                    Assert.Equal(1, groups[1].Items.Count());
                    Assert.Equal("lib/net451/test.dll", groups[2].Items.Single());
                }
            }
        }