单元测试控制器模拟 ISession

Question

我想对我的控制器进行单元测试，但我在读取值时遇到问题HttpContext.Session。
我想从我的控制器中模拟这一部分：HttpContext.Session.Get<int>(Foo)

使用Mock HttpContext 对 .NET core MVC 控制器进行单元测试？以及 如何在 asp net core 中模拟会话对象我能够得出以下解决方案：

我的测试：

public void GetFoos_AllGood_ReturnList()
{
  //Arrange
  Mock<ISession> sessionMock = new Mock<ISession>();
  var fooSessionValue = new byte[0];

  Web.Controllers.FooController fooController = new Web.Controllers.FooController();
  fooController.ControllerContext.HttpContext = new DefaultHttpContext();
  fooController.ControllerContext.HttpContext.Request.Headers["Foo"] = 0;

  Mock<IServiceCollection> mock = new Mock<IServiceCollection>();
  mock.Object.AddSession(); // Tried this, but failed

  //Setup
  sessionMock.Setup(_ => _.Set("Foo", It.IsAny<byte[]>())).Callback<string, byte[]>((k, v) => fooSessionValue = v);
  sessionMock.Setup(_ => _.TryGetValue("Foo", out fooSessionValue)).Returns(true);
  mockWebDataManager.Setup(b => b.GetFoos(It.IsAny<FooArgs>())).Returns(new FooResult() { Foos = new List<Foo>() });

  //Act
  var result = fooController.GetFoos() as JsonResult;

  //Assert
  Assert.NotNull(result);
  Assert.Equal(200, result.StatusCode);
}

我的控制器：

internal virtual DataArgs CreateArgs()
{
  return new FooArgs
  {
     HttpContext.Session.Get<int>(Foo) // I want to Mock this value    
  };
}

[HttpGet]
public IActionResult GetFoos()
{
  FooArgs args = CreateArgs();
  ...
}

Answer 1

如果有一天有人遇到同样的问题，请执行以下操作：

public void GetFoos_AllGood_ReturnList()
{
  //Arrange
  Mock<ISession> sessionMock = new Mock<ISession>();

  Web.Controllers.FooController fooController = new Web.Controllers.FooController();
  fooController.ControllerContext.HttpContext = new DefaultHttpContext();
  fooController.ControllerContext.HttpContext.Request.Headers["Foo"] = 0; 
  fooController.ControllerContext.HttpContext.Session = sessionMock.Object;

  //Act
  var result = fooController.GetFoos() as JsonResult;

  //Assert
  Assert.NotNull(result);
}