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DNN Automation Testing with F# (ATFS) – Part 3

Writing Your Own ATFS Tests



In the first two articles, I explained the basics of ATFS and how to use it to run all existing or specific UI tests. In this article, I’ll show you how to write your own UI tests.


You need to have followed the previous two articles to get yourself familiar with the framework and its configuration file. The articles were published here and here

Before proceeding, you need to revert any changes made to the framework you downloaded from Github or to start with a clean clone of the repository.

Writing Your First UI Test

Now let's get to the real work of writing our own tests. Let's start with a simple test to check whether a specific text is displayed in at the home page or not. We will to add the test under P1 Community area (folder).

Step 1

Open the solution in Visual Studio and browse to the ATFS project. Expand the project
“<project-name>/TestCases/Community” node, right click the mouse over the "Community" folder, select “Add | New Item …” then click. In the dialog that opens select F# files, source file, then enter a descriptive name for your test suite, and click the Add button. In the image below I choose to use TextTest.fs for the file.


Step 2

In the new file window that opens type the following code (note that F# relies on indentation for identifying its code blocks; therefore be aware of that when editing the code):

module TextTest

open canopy

open DnnCanopyContext

let positive _ =


    context "Testing Text in Pages"

    "Home Page Contains 'Every Journey ...'" @@@ fun _ ->

        goto "/"

        let el = element "#dnn_HeaderPane" |> elementWithin "h2"

        Check.Contains el.Text "Every journey begins with the first step."

let all _ =


Your window should look similar to this.


What we are trying here is to browse to the home page “/” and locate an element with an ID equals “dnn_HeaderPane” then try to locate a child element with “h2” tag under this (not necessarily a first child; it could be a grandchild deep under the parent). Afterwards, we verify that the found element’s text contains the text “Every journey begins with the first step.” If we use the browser tools to locate this, then it will be something like this:

Now, enter the following line in the “Program.fs” file as shown in the previous practice section (and pay attention to indentation).



Now press F5 and watch your test run. You should see a window similar to this.


Congratulations, you wrote you first UI test with ATFS framework


In this article I explained how you can write our automated UI tests and run them. If you followed the previous two blogs and this one you will be able to start on your own and extend the tests to your own written modules. The tests provided with the framework represent a good starting point for you to learn from and see how we at DNN perform out automated UI tests.

When you start writing your tests and face any blocking issue or need further information, don’t hesitate to ask (as a comment to any of the blogs) and I or another person from the automation team at DNN will do our best to reply in a timely manner.


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