C# 如何在AssemblyInitialize中导入MEF类

如何在程序集初始化中导入IReportTestEnvirommentSetup。此类当前向我发出警告，表示从未分配该属性。我在所有其他测试类中都这样做，它工作得很好，因为AssemblyTests；为当前应用程序设置合成范围

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有人能帮我纠正我的错误吗？

找到了解决方案myselfpublic static void InitializeTestContext{AssemblyTests.\u Composer Wrapper=Composer.Load；IReportTestenEnvironment设置报告TestenEnvironment设置=Composer.Current.GetComponent；报告TestenEnvironmentSetup.ServiceWarmUpTeamFoundationTestConfig.SsrsWarmUpUrl.InvariantFormatTeamFoundationTestConfig.TFSReportServer；}

  [TestClass]
    public static class AssemblyTests
    {
        private static IDisposable _composerWrapper;

        [Import]
        private static IReportTestEnvironmentSetup _reportTestEnvironmentSetup;

        [AssemblyInitialize]
        public static void Initialize(TestContext context)
        {
            AssemblyTests._composerWrapper = Composer.Load();
            TeamFoundationTestConfig.UpdateTfsReportServerInCommonConfig();
            _reportTestEnvironmentSetup.ServiceWarmUp(TeamFoundationTestConfig.ReportingServiceBaseUrl);
            _reportTestEnvironmentSetup.ServiceWarmUp(TeamFoundationTestConfig.SsrsWarmUpUrl.InvariantFormat(TeamFoundationTestConfig.TFSReportServer));
        }

        [AssemblyCleanup]
        public static void Cleanup()
        {
            AssemblyTests._composerWrapper.Dispose();
        }
    }