unit testing

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Desley 44 posts 169 karma points

Jun 19, 2014 @ 11:26

Using Umbraco 7

Hi,

I am trying to create my first unit tests. I have the following code:

    [TestClass]
    public class ClosestAdvertisementTest
    {
        private ClosestAdvertisementsSurfaceController target;
       [TestInitialize]
        public void Initialize()
        {
            target = new ClosestAdvertisementsSurfaceController();
        }

       [TestMethod]
        public void Calculate_Distance_Between_Two_Coordinates_In_Km()
        {
            //arrange
            const double latitude1 = 52.1107526;
            const double longitude1 = 5.118116999999984;
            const double latitude2 = 52.1371316;
            const double longitude2 = 5.572416299999986;
            const double expected = 31.15;

            //act
            double actual = target.CalculateDistance(latitude1, longitude1, latitude2, longitude2);

            //assert
            Assert.AreEqual(expected, actual, 1);
        }
}

The test fails and says the umbracoContext cannot be null. I found this post http://our.umbraco.org/forum/umbraco-7/using-umbraco-7/48015-Unit-Testing-Surface-Controllers saying I need the umbraco.test.dll but I cannot find it anywhere.

Hopefully someone can help me out.

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kim Thomsen 59 posts 277 karma points

Jun 19, 2014 @ 11:47

1

You can finde the umbraco.test.dll on Github

https://github.com/umbraco/Umbraco-CMS

Just download and build the project

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Desley 44 posts 169 karma points

Jun 19, 2014 @ 13:23
0
I added the .dll but still having trouble with the umbracoContext. The following code:
```
UmbracoContext umbracoContext = UmbracoContext.Current
```
is null. How can I create a proper UmbracoContext?
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Andy Butland 422 posts 2334 karma points MVP 4x hq c-trib

Jun 19, 2014 @ 16:26

0

I wrote a couple of blog posts on this problem recently. There's perhaps not an ideal solution, but some techniques that might help you:

http://web-matters.blogspot.it/2014/03/unit-testing-umbraco-surface-controllers.html

http://web-matters.blogspot.it/2014/04/unit-testing-umbraco-with-base-test-classes.html

In your case I think I'd look at the first one - move your method that does the calculating distance into its own class, that needs (as far as I can see) to have no reference to Umbraco, and write your tests around that. Then have your controller take an instance of that class as a dependency, or new one up in your controller's constructor or CalculateDistance method, and call out to your new class for the functionality.

In that case you would be unit testing the core function you want to test, but not testing the controller. However given the controller method remaining would be extremely simply, there's much less value in doing so.

Hope that helps.

Andy

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