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POUnit testing method that uses UI controls
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copied!<p>I'm currently writing some methods that do some basic operations on form controls eg Textbox, Groupbox, these operations are generic and can be used in any application. </p> <p>I started to write some unit tests and was just wondering should I use the real form controls found in System.Windows.Forms or should I just mock up the sections that I'm trying to test. So for example:</p> <p>Say I have this method which takes a control and if it is a textbox it will clear the text property like this:</p> <pre><code> public static void clearall(this Control control) { if (control.GetType() == typeof(TextBox)) { ((TextBox)control).Clear(); } } </code></pre> <p>Then I want to test this method so I do something like this:</p> <pre><code> [TestMethod] public void TestClear() { List<Control> listofcontrols = new List<Control>(); TextBox textbox1 = new TextBox() {Text = "Hello World" }; TextBox textbox2 = new TextBox() { Text = "Hello World" }; TextBox textbox3 = new TextBox() { Text = "Hello World" }; TextBox textbox4 = new TextBox() { Text = "Hello World" }; listofcontrols.Add(textbox1); listofcontrols.Add(textbox2); listofcontrols.Add(textbox3); listofcontrols.Add(textbox4); foreach (Control control in listofcontrols) { control.clearall(); Assert.AreEqual("", control.Text); } } </code></pre> <p>Should I be adding a referance to System.Window.Forms to my unit test and use the real Textbox object? or am I doing it wrong? </p> <p>NOTE: The above code is only an example, I didn't compile or run it.</p>

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