Unit Test ASP.NET Pages with Team Build

Brian Orrell — Sun, 20 May 2007 20:38:00 GMT

Say you have a page like this:

<asp:TextBox ID="NameTextBox" runat="Server" /><asp:Button ID="SubmitButton" Text="Submit" runat="server" OnClick="SubmitButton_Click" />
<asp:Label ID="MessageLabel" runat="server" />

With the following code behind.

using System;

namespace AspUnitTest

{

public partial class _Default : System.Web.UI.Page

{

protected void SubmitButton_Click(object sender, EventArgs e)

{

MessageLabel.Text = string.Format("Hello, {0}", NameTextBox.Text);

}

Create a unit test with the following code to test it.

using Microsoft.VisualStudio.TestTools.UnitTesting;

using Microsoft.VisualStudio.TestTools.UnitTesting.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System;

namespace AspUnitTest.Test

{

///

/// Summary description for DefaultAspxTest

///

[TestClass]

public class DefaultAspxTest

{

private TestContext testContextInstance;

public TestContext TestContext

{

get { return testContextInstance; }

set { testContextInstance = value; }

}

[TestMethod()]

[HostType("ASP.NET")]

[UrlToTest("http://localhost:50551/default.aspx")]

[AspNetDevelopmentServerHost("C:\\Users\\brian.orrell.PARIVEDA\\Documents\\Source\\Samples\\AspUnitTest\\AspUnitTest")]

public void TestNameEntry()

{

Page page = testContextInstance.RequestedPage; //1

TextBox NameTextBox = (TextBox)page.FindControl("NameTextBox");

Assert.IsNotNull(NameTextBox);

Button SubmitButton = (Button)page.FindControl("SubmitButton"); //2

Assert.IsNotNull(SubmitButton);

Label MessageLabel = (Label)page.FindControl("MessageLabel");

Assert.IsNotNull(MessageLabel);

PrivateObject po = new PrivateObject(page); //3

string name = "Brian Orrell";

NameTextBox.Text = name;

po.Invoke("SubmitButton_Click", SubmitButton, EventArgs.Empty);

Assert.AreEqual(string.Format("Hello, {0}", name), MessageLabel.Text);

}

Pretty easy.

Test Driven Development

Unit Test ASP.NET Pages with Team Build