public void DefineExport()
        {
            var plugins = CreatePluginTypes();
            GroupDefinition groupInfo = null;
            var repository = new Mock<IPluginRepository>();
            {
                repository.Setup(r => r.Parts())
                    .Returns(plugins);
                repository.Setup(r => r.AddGroup(It.IsAny<GroupDefinition>(), It.IsAny<PluginFileInfo>()))
                    .Callback<GroupDefinition, PluginFileInfo>((g, f) => groupInfo = g);
            }

            var importEngine = new Mock<IConnectParts>();
            {
                importEngine.Setup(i => i.Accepts(It.IsAny<SerializableImportDefinition>(), It.IsAny<SerializableExportDefinition>()))
                    .Returns(true);
            }

            Func<Type, TypeIdentity> identityGenerator = t => TypeIdentity.CreateDefinition(t);
            Func<IBuildFixedSchedules> scheduleBuilder = () => new FixedScheduleBuilder();

            var builder = new GroupDefinitionBuilder(
                repository.Object,
                importEngine.Object,
                identityGenerator,
                scheduleBuilder,
                new PluginFileInfo("a", DateTimeOffset.Now));
            var firstInfo = builder.RegisterObject(typeof(ImportOnProperty));
            var secondInfo = builder.RegisterObject(typeof(ExportOnProperty));
            var thirdInfo = builder.RegisterObject(typeof(ActionOnMethod));
            var fourthInfo = builder.RegisterObject(typeof(ConditionOnProperty));
            builder.Connect(firstInfo.RegisteredImports.First(), secondInfo.RegisteredExports.First());

            var registrator = builder.RegisterSchedule();
            {
                var vertex = registrator.AddExecutingAction(thirdInfo.RegisteredActions.First());
                registrator.LinkFromStart(vertex, fourthInfo.RegisteredConditions.First());
                registrator.LinkToEnd(vertex);
                registrator.Register();
            }

            var groupExportName = "groupExport";
            builder.DefineExport(groupExportName);

            var groupName = "MyGroup";
            builder.Register(groupName);

            Assert.IsNotNull(groupInfo);
            Assert.AreEqual(new GroupRegistrationId(groupName), groupInfo.GroupExport.ContainingGroup);
            Assert.AreEqual(groupExportName, groupInfo.GroupExport.ContractName);

            Assert.That(
                groupInfo.GroupExport.ProvidedExports,
                Is.EquivalentTo(
                    new List<ExportRegistrationId>
                    {
                        firstInfo.RegisteredExports.First(),
                        thirdInfo.RegisteredExports.First(),
                        fourthInfo.RegisteredExports.First(),
                    }));
        }
        public void DefineExport()
        {
            var             plugins    = CreatePluginTypes();
            GroupDefinition groupInfo  = null;
            var             repository = new Mock <IPluginRepository>();
            {
                repository.Setup(r => r.Parts())
                .Returns(plugins);
                repository.Setup(r => r.AddGroup(It.IsAny <GroupDefinition>(), It.IsAny <PluginFileInfo>()))
                .Callback <GroupDefinition, PluginFileInfo>((g, f) => groupInfo = g);
            }

            var importEngine = new Mock <IConnectParts>();
            {
                importEngine.Setup(i => i.Accepts(It.IsAny <SerializableImportDefinition>(), It.IsAny <SerializableExportDefinition>()))
                .Returns(true);
            }

            Func <Type, TypeIdentity>   identityGenerator = t => TypeIdentity.CreateDefinition(t);
            Func <IBuildFixedSchedules> scheduleBuilder   = () => new FixedScheduleBuilder();

            var builder = new GroupDefinitionBuilder(
                repository.Object,
                importEngine.Object,
                identityGenerator,
                scheduleBuilder,
                new PluginFileInfo("a", DateTimeOffset.Now));
            var firstInfo  = builder.RegisterObject(typeof(ImportOnProperty));
            var secondInfo = builder.RegisterObject(typeof(ExportOnProperty));
            var thirdInfo  = builder.RegisterObject(typeof(ActionOnMethod));
            var fourthInfo = builder.RegisterObject(typeof(ConditionOnProperty));

            builder.Connect(firstInfo.RegisteredImports.First(), secondInfo.RegisteredExports.First());

            var registrator = builder.RegisterSchedule();
            {
                var vertex = registrator.AddExecutingAction(thirdInfo.RegisteredActions.First());
                registrator.LinkFromStart(vertex, fourthInfo.RegisteredConditions.First());
                registrator.LinkToEnd(vertex);
                registrator.Register();
            }

            var groupExportName = "groupExport";

            builder.DefineExport(groupExportName);

            var groupName = "MyGroup";

            builder.Register(groupName);

            Assert.IsNotNull(groupInfo);
            Assert.AreEqual(new GroupRegistrationId(groupName), groupInfo.GroupExport.ContainingGroup);
            Assert.AreEqual(groupExportName, groupInfo.GroupExport.ContractName);

            Assert.That(
                groupInfo.GroupExport.ProvidedExports,
                Is.EquivalentTo(
                    new List <ExportRegistrationId>
            {
                firstInfo.RegisteredExports.First(),
                thirdInfo.RegisteredExports.First(),
                fourthInfo.RegisteredExports.First(),
            }));
        }