单元测试一种方法，该方法的语句在不同的任务上运行

Question

我有一个方法：

public class WorkerClass : IWorkerClass
{
private int myworkId = 0;
public void Workflow(int theWorkid)
{
var aTask = new Task(() =>
{
this.myworkId = theWorkid;
//Some calculations

});
aTask.Start();
}
}

我有一个单元测试方法：

[DataTestMethod]
[DataRow(23)]
public class workerTester
{
public void WorkflowTest(int theWorkflowMode)
{
// Arrange 

var aWorkTester = new Mock<IWorkerClass>();
var aExpectedWorkflowMode = 23;
myWorkerPrivateObj = new PrivateObject(aWorkTester);
// Act
myWorkerPrivateObj .Invoke("Workflow", theWorkflowMode);
// Assert
//Thread.Sleep(1000); If i uncomment it works
var aActualWorkflowModeType = myWorkerPrivateObj.GetField("myworkId");
Assert.AreEqual(aExpectedWorkflowModeType, aActualWorkflowModeType);

}
}

如果我取消注释Thread.Sleep(1000(，则aActualWorkflowModeType为23。但如果我对其进行评论，则ActualWorkflowModeType为0。我假设在我的任务完成之前调用了断言。我如何才能等到单元测试中的任务完成？

Answer 1

我为单元测试找到了一种方法：

var lookupTask = Task<WorkerClass>.Factory.StartNew(() =>
{
return new WorkerClass();
});

lookupTask.Wait();

所以我的新单元测试方法是这样的：

[DataTestMethod]
[DataRow(23)]
public class workerTester
{
public void WorkflowTest(int theWorkflowMode)
{
// Arrange 

var aWorkTester = new Mock<IWorkerClass>();
var aExpectedWorkflowMode = 23;
myWorkerPrivateObj = new PrivateObject(aWorkTester);
// Act
myWorkerPrivateObj .Invoke("Workflow", theWorkflowMode);
var lookupTask = Task<WorkerClass>.Factory.StartNew(() =>
{
return new WorkerClass();
});
// Assert
lookupTask.Wait();
var aActualWorkflowModeType = myWorkerPrivateObj.GetField("myworkId");
Assert.AreEqual(aExpectedWorkflowModeType, aActualWorkflowModeType);

}
}

这似乎工作