public void add_odata_api_explorer_should_configure_mvc() { // arrange var services = new ServiceCollection(); // act services.AddODataApiExplorer(); // assert services.Single(sd => sd.ServiceType == typeof(IApiVersionDescriptionProvider)).ImplementationType.Should().Be(typeof(DefaultApiVersionDescriptionProvider)); services.Single(sd => sd.ImplementationType == typeof(VersionedApiDescriptionProvider)).ServiceType.Should().Be(typeof(IApiDescriptionProvider)); services.Single(sd => sd.ImplementationType == typeof(ODataApiDescriptionProvider)).ServiceType.Should().Be(typeof(IApiDescriptionProvider)); }