如何使用Moq aspnetcore C#xUnit模拟ActionContext

我正在尝试模拟此控制器：

public IActionResult List()
{          

   Response.Headers.Add("contentRange", "1");
   Response.Headers.Add("acceptRange", "1");

   return Ok();
}

通过此测试：

[Fact]
public void when_call_list_should_return_sucess()
{
   //Arrange

   //Act
   var result = _purchaseController.List();

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

---

但是我的HttpContext为空，并且发生了错误，我如何模拟我的ActionContext和HttpContext进行测试？

您可以在构建purchaseController的地方、在设置中或类似的地方执行此操作。在你的情况下，你甚至不必嘲笑它

_purchaseController = new PurchaseController
{
    ControllerContext = new ControllerContext 
    {
        HttpContext = new DefaultHttpContext()
    }
}

但是如果您还想验证响应头，您可能会模拟

HttpContext

和预期的

HttpResponse

，并提供您自己的

标题说明来验证

_headers = new HeaderDictionary();

var httpResponseMock = new Mock<HttpResponse>();
httpResponseMock.Setup(mock => mock.Headers).Returns(_headers);

var httpContextMock = new Mock<HttpContext>();
httpContextMock.Setup(mock => mock.Response).Returns(httpResponseMock.Object);

_purchaseController = new PurchaseController
{
    ControllerContext = new ControllerContext 
    {
        HttpContext = httpContextMock.Object
    }
}

var result = _sut.List();

Assert.Equal("1", _headers["contentRange"]);
Assert.Equal("1", _headers["acceptRange"]);