How to unit test a [System.Web.Http.Authorize] filter in ASP.net with Xunit

Question

I need to check the ModelState of controller method which has AUTHORIZE filter, because of that it is not accessible.

    [Microsoft.AspNetCore.Mvc.Produces("application/json")]
    [System.Web.Http.Authorize]
    public Microsoft.AspNetCore.Mvc.ActionResult<HttpResponseMessage> CrowdSourcedData([FromBody] List<Apps> Apps)
    {
        if (!ModelState.IsValid)
        {
            return null;
        }
        return _dataProcessor.CrowdSourcedData(Apps);
    }

How can I unit test this method, I have tried other given options but nothing worked and I don't want to do Integration testing.

Does this answer your question? Unit testing ASP.Net MVC Authorize attribute to verify redirect to login page — Ryan Wilson
– Ryan Wilson, Commented May 27, 2020 at 15:20
No, because I want to verify that the controller method does the right thing when it gets called, but it is not getting called because of [Authorize] filter. — Abhishi
– Abhishi, Commented May 27, 2020 at 16:28

crgolden · Accepted Answer · 2020-05-27 16:52:44Z

0

Here are a couple simple tests you can try:

[Fact]
public void CrowdSourcedData_Valid()
{
    // Arrange
    var message = new HttpResponseMessage();
    var apps = new List<Apps>();
    var dataProcessor = new Mock<IDataProcessor>(); // Assuming "IDataProcessor" or something
    dataProcessor.Setup(x => x.CrowdSourcedData(apps)).Returns(message);
    var controller = new Controller(dataProcessor.Object); // Assuming you inject the "_dataProcessor" here

    // Act
    var result = controller.CrowdSourcedData(apps);

    // Assert
    dataProcessor.Verify(x => x.CrowdSourcedData(apps), Times.Once);
    Assert.Equal(message, result);
}

[Fact]
public void CrowdSourcedData_Invalid()
{
    // Arrange
    var message = new HttpResponseMessage();
    var apps = new List<Apps>();
    var dataProcessor = new Mock<IDataProcessor>();
    dataProcessor.Setup(x => x.CrowdSourcedData(apps)).Returns(message);
    var controller = new Controller(dataProcessor.Object);
    controller.ModelState.AddModelError("FakeError", "FakeMessage"); // Here you set the invalid "ModelState"

    // Act
    var result = controller.CrowdSourcedData(apps);

    // Assert
    dataProcessor.Verify(x => x.CrowdSourcedData(apps), Times.Never);
    Assert.Null(result);
}

answered May 27, 2020 at 16:52

crgolden

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1 Comment

Abhishi Over a year ago

Thank you so much it worked. I am new to this that's why I got confused. many many Thanks :)

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