public void PackageReader_NestedReferenceItems()
        {
            var zip = TestPackages.GetZip(TestPackages.GetLibSubFolderPackage());

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

                Assert.Equal(1, groups.Count());

                Assert.Equal(NuGetFramework.Parse("net40"), groups[0].TargetFramework);
                Assert.Equal(2, groups[0].Items.Count());
                Assert.Equal("lib/net40/test40.dll", groups[0].Items.ToArray()[0]);
                Assert.Equal("lib/net40/x86/testx86.dll", groups[0].Items.ToArray()[1]);
            }
        }