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// -----------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.ComponentModel.Composition.Factories;
using System.ComponentModel.Composition.Hosting;
using System.Linq;
using System.Linq.Expressions;
using System.UnitTesting;
using Microsoft.VisualStudio.TestTools.UnitTesting;
namespace Tests.Integration
{
[TestClass]
public class RequiredCreationPolicyTests
{
// Matrix that details which policy to use for a given part to satisfy a given import.
// Part.Any Part.Shared Part.NonShared
// Import.Any Shared Shared NonShared
// Import.Shared Shared Shared N/A
// Import.NonShared NonShared N/A NonShared
public interface ICreationPolicyExport
{
}
[Export(typeof(ICreationPolicyExport))]
public class CreationPolicyAnyExportImplicit : ICreationPolicyExport
{
}
[Export(typeof(ICreationPolicyExport))]
[PartCreationPolicy(CreationPolicy.Any)]
public class CreationPolicyAnyExportExplicit : ICreationPolicyExport
{
}
[Export(typeof(ICreationPolicyExport))]
[PartCreationPolicy(CreationPolicy.Shared)]
public class CreationPolicySharedExport : ICreationPolicyExport
{
}
[Export(typeof(ICreationPolicyExport))]
[PartCreationPolicy(CreationPolicy.NonShared)]
public class CreationPolicyNonSharedExport : ICreationPolicyExport
{
}
[Export]
public class RequiredAnyImporterImplicit
{
[ImportMany]
public IEnumerable<ICreationPolicyExport> Exports { get; set; }
}
[Export]
public class RequiredAnyImporterExplicit
{
[ImportMany(RequiredCreationPolicy = CreationPolicy.Any)]
public IEnumerable<ICreationPolicyExport> Exports { get; set; }
}
[Export]
public class RequiredSharedImporter
{
[ImportMany(RequiredCreationPolicy = CreationPolicy.Shared)]
public IEnumerable<ICreationPolicyExport> Exports { get; set; }
}
[Export]
public class RequiredNonSharedImporter
{
[ImportMany(RequiredCreationPolicy = CreationPolicy.NonShared)]
public IEnumerable<ICreationPolicyExport> Exports { get; set; }
}
private static CompositionContainer CreateDefaultContainer()
{
return ContainerFactory.CreateWithAttributedCatalog(
typeof(ICreationPolicyExport),
typeof(CreationPolicyAnyExportImplicit),
typeof(CreationPolicyAnyExportExplicit),
typeof(CreationPolicySharedExport),
typeof(CreationPolicyNonSharedExport),
typeof(RequiredAnyImporterImplicit),
typeof(RequiredAnyImporterExplicit),
typeof(RequiredSharedImporter),
typeof(RequiredNonSharedImporter));
}
[TestMethod]
public void RequiredAnyImporterImplicit_ShouldIncludeAll()
{
var container = CreateDefaultContainer();
var importer = container.GetExportedValue<RequiredAnyImporterImplicit>();
EnumerableAssert.AreEqual(
importer.Exports.Select(obj => obj.GetType()),
typeof(CreationPolicyAnyExportImplicit),
typeof(CreationPolicyAnyExportExplicit),
typeof(CreationPolicySharedExport),
typeof(CreationPolicyNonSharedExport));
}
[TestMethod]
public void RequiredAnyImporterExplicit_ShouldIncludeAll()
{
var container = CreateDefaultContainer();
var importer = container.GetExportedValue<RequiredAnyImporterExplicit>();
EnumerableAssert.AreEqual(
importer.Exports.Select(obj => obj.GetType()),
typeof(CreationPolicyAnyExportImplicit),
typeof(CreationPolicyAnyExportExplicit),
typeof(CreationPolicySharedExport),
typeof(CreationPolicyNonSharedExport));
}
[TestMethod]
public void RequiredSharedImporter_ShouldFilterNonShared()
{
var container = CreateDefaultContainer();
var importer = container.GetExportedValue<RequiredSharedImporter>();
EnumerableAssert.AreEqual(
importer.Exports.Select(obj => obj.GetType()),
typeof(CreationPolicyAnyExportImplicit),
typeof(CreationPolicyAnyExportExplicit),
typeof(CreationPolicySharedExport));
}
[TestMethod]
public void RequiredNonSharedImporter_ShouldFilterShared()
{
var container = CreateDefaultContainer();
var importer = container.GetExportedValue<RequiredNonSharedImporter>();
EnumerableAssert.AreEqual(
importer.Exports.Select(obj => obj.GetType()),
typeof(CreationPolicyAnyExportImplicit),
typeof(CreationPolicyAnyExportExplicit),
typeof(CreationPolicyNonSharedExport));
}
}
}
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