模拟mongo存储库失败

Question

以上是我的模拟存储库的设置，用于取回Office365 powershellsessions。 模拟定义似乎很好

var mockOfficeRepository = new Mock<IOffice365PowerShellSessionRepository>();
var mockMongoCol= new Mock<IMongoCollection<Office365PowerShellSession>>();
mockOfficeRepository.Setup(o => o.Where(
                                shellSession =>
                                    shellSession.OrganizationId == "12" &&
                                    shellSession.Status == Office365PowerShellSessionStatus.Enabled &&
                                    shellSession.IsBackgroundTask == false, null, null, null)).Returns(mockMongoCol.Object.AsQueryable());

但是当我这样称呼它时：

var result = Office365PowerShellSessionRepository.Where(
                                shellSession =>
                                    shellSession.OrganizationId == selectedOrganizationId &&
                                    shellSession.Status == Office365PowerShellSessionStatus.Enabled &&
                                    shellSession.IsBackgroundTask == false, null, null, null);

var session = result.SingleOrDefault();

它返回null，如果我将其设置为严格行为，则表示它不匹配，即使selectedOrganizationId设置为“ 12”

帮助？