How To Make Sure That CreateChildControls () Method Is Called When Unit Testing Custom .NET Web Controls
Feb 10, 2010
I want to unit test my rendering engine for an ASP.NET app. I have some custom controls created in that app. Most of those control rely on having CreateChildControls() method called by the ASP.Net engine wheather during initial call or a postback.When running a test CreateChildControls() does not get called and the control is in an "invalid" state.
As a workaround to get the tests going I explicitly call some other public method that calls EnsureChildControls() in it. This in effect causes CreateChildControls() to be executed and the control being initialized properly (just as it would normally when hosted on web server). I would like to get rid of that extra method call and the control to still be in a proper state for testing.
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Oct 12, 2010
I create a webcontrol (DefectsList as a gridview) with an icon that call an httphandler to open an other webcontrol (DefectEditor as an editor) but the CreateChildControls of the editor is not called!!
see the details below of DefectsList:
[Code]....
and the javascript:
[Code]....
see the details below of DefectEditor:
[Code]....
Why the CreateChildControls is not called, I think is due to the HttpHandler? so how to do?
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Jan 18, 2010
I'm having the same issue as posted here:
http://forums.asp.net/p/1157529/1904541.aspx#1904541
I have a web user control that implements iWebEditable, and a custom editor part the implements EditorPart. In my custom editor part class, i define a text box, create the textbox in createchildcontrols() then render the textbox in RenderContents() using the following line:
_txtTitle.RenderControl(writer);
As soon as I add the line above (which displays the text box in the editor part) the functions createchildcontrols and applychanges are called in the wrong order. i click save button in the editor part to save changes to textbox, createchildcontrols() is called first, then applychanges() is called after the editorpart and the webpart (custom control) are rendered requiring me to refresh the page (which is not the desired functionality ;-] ). As soon as I comment out the line above in RenderContents() the functions are called in the correct order: appychanges() first, then createchildcontrols().
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Nov 16, 2010
I'm using a simple base class for my controller that sets a piece of ViewData and makes use of the HttpContext. My understanding is that I need to put this code in Initialize() or OnActionExecuting(). I tried both, but believe Initialize() is what I want.
This works when running the app in VS just fine.
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Feb 18, 2011
How can BuildProvider's GenerateCode method be tested. I created a BuildProvider and now I want to unit test it. Is it possible? Initial question was not clear enough. I don't want to stub AssemblyBuilder, I want to mimic asp.net request. I want to make sure that VirtualPathProvider and BuildProvider work fine together.
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public override void GenerateCode(AssemblyBuilder assemblyBuilder)
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string outputName = VirtualPath.Substring(VirtualPath.LastIndexOf('/') + 1);
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foreach (var assembly in CompilerServices.GetLoadedAssemblies().Where(a => !a.IsDynamic))
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Jun 30, 2010
I wrote a custom RequestValidator implementation to deal with W.I.F. security tokens. Now I am trying to write a unit test for this class. This method is protected internal. Even using InternalsVisibleToAttribute, I am having no luck being able have my unit test compile against my implementation of:
bool
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I've made a simple website in ASP.NET MVC Framework with users, articles etc., and images to users profiles. There is a simple static class for image manipulation (resizing, cropping and saving images on hard drive), placed in "Helper" directory. I wonder what to do with the code to preserve MVC principles and make whole website more unit testing friendly.
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Feb 23, 2011
Recently for a class to implement unit test for one of its private methods I used PrivateObject by creating private accessor instead of refelection, to which i received a code review comment as below
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Mar 10, 2011
I am using ASP.NET MVC 3 and NUnit. I am trying to write a unit to test one of my helper methods. Here it is:
public static class UrlHelperAssetExtensions
{
private static readonly string yuiBuildPath = "http://yui.yahooapis.com/2.8.2r1/build/";
public static string YuiResetFontsGridsStylesheet(this UrlHelper helper)
{
return helper.Content(yuiBuildPath + "reset-fonts-grids/reset-fonts-grids.css");
}
}
Here is my unit test:
[Test]
public void YuiResetFontsGridsStylesheet_should_return_stylesheet()
{
// Arrange
RequestContext requestContext = new RequestContext();
UrlHelper urlHelper = new UrlHelper(requestContext);
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string actual = urlHelper.YuiResetFontsGridsStylesheet();
// Assert
string expected = yuiBuildPath + "reset-fonts-grids/reset-fonts-grids.css";
Assert.AreEqual(expected, actual);
}....................................
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May 6, 2010
I'm using VSTS 2K8 and I've set up a Unit Test Project. In it, I have a test class with a method that does a simple assertion. I'm using an Excel 2007 spreadsheet as my data source.
My test method looks like this:
[Code]....
As indicated in the method decoration attributes, my Excel spreadsheet is on my local C:/ Drive. In it, the sheet where all of my data is located is named "Sheet1".I've copied the Excel spreadsheet into my project and I've set its Build Action = "Content" and I've set its Copy to Output Directory = "Copy if Newer".
When trying to run this simple unit test, I receive the following error:
The unit test adapter failed to connect to the data source or to read the data. For more information on troubleshooting this error, see "Troubleshooting Data-Driven Unit Tests" (http://go.microsoft.com/fwlink/?LinkId=62412) in the MSDN Library. Error details: ERROR [42S02] [Microsoft][ODBC Excel Driver] The Microsoft Office Access database engine could not find the object 'Sheet1'. Make sure the object exists and that you spell its name and the path name correctly.
I've verified that the sheet name is spelled correctly (i.e. Sheet1) and I've verified that my data sources are set correctly.Web searches haven't turned up much at all.
[Code]....
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Mar 24, 2010
I'm making a custom modal popup using a bunch divs where the programmer can set how many buttons thay want to apprear on said popup programatically using a function. It works. The only problem is that when the programmer specifies the number of buttons he/she wants it wipes out the skin information for the whole control. If I comment out the call to CreateChildControls the skin works fine, but the new buttons are not created.
In my CreateChildControls function the first thing it does is call Controls.Clear(). I assume this is what's wiping out the skin information, but it's kind of necessary to prevent controls with duplicate IDs.
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Oct 1, 2010
i have develop a custom control as shown below
[Code]....
[Code]....
Now in page load event i am trying to a access textbox (txtData) of my custome control as shown below
[Code]....
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Mar 22, 2011
I have created a custom web control. In that control on CreateChildControls method i dynamically create a Table add rows to it which contains a ImageButton and i am trying to attach an event to this ImageButton but the event never fires?
I tried on Init method too it does not work . The code goes like this on CreateChildControls
I create a Panel . The i create a table with data and an imagebutton on it I add this table to the created panel I add this Panel to the Controls.Add method.
I have also observed that if i add a control directly to the Controls.Add() method and attach an event it works fine .
Meaning ,
1. Create a button attach an event handler
2. Add to the Controls.Add() method
On doing the above it works fine . Only the child controls events do not get fired is there anything that i am missing ??
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Apr 3, 2011
I have been looking at the unit testing topic and honestly I have never yet seen it in a live application.
Im a little foggy on the subject....
A simple example is if I am populating a listbox with data, I would know through debugging if the data is being populated and if it wasnt it would probably be easy to figure out why. Futhermore I couldnt possibly put it in production if it wasnt work so, why would I need to do a unit test? I dont see the point of it.
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Mar 18, 2011
In MVC, the unit testing is primarily surrounding the controllers. The Model is rarely tested, and the View not at all. What is the consensus on this?
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Feb 11, 2010
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Everything seems to compile fine, however when running the test I get the following error:
System.Web.HttpException: Invalid use
of SimpleWorkerRequest constructor.
Application path cannot be overridden
in this context. Please use
SimpleWorkerRequest constructor that
does not override the application
path..
When analyzing I find the error seems to be thrown at the following line:
var wr = new SimpleWorkerRequest("", "", "", "", writer); I'm not sure what to make of this. What is the SimpleWorkerRequest and how does it work in creating the HttpContext in Moq?? Why is my use of it invalid according to the debugger??
UPDATE: Here is the complete method I use taken from the website above
public static HttpContextBase FakeHttpContext()
{
var httpContext = new Mock<HttpContextBase>();
var request = new Mock<HttpRequestBase>();
var response = new Mock<HttpResponseBase>();
var session = new Mock<HttpSessionStateBase>();
var server = new Mock<HttpServerUtilityBase>();
var cookies = new HttpCookieCollection();
httpContext.Setup(x => x.Server).Returns(server.Object);
httpContext.Setup(x => x.Session).Returns(session.Object);
httpContext.Setup(x => x.Request).Returns(request.Object);
httpContext.Setup(x => x.Response).Returns(response.Object);
response.Setup(x => x.Cookies).Returns(cookies);
httpContext.SetupGet(x => x.Request.Url).Returns(new Uri("http://www.csuci.edu"));
httpContext.SetupGet(x => x.Request.UrlReferrer).Returns(new Uri("http://www.csuci.edu"));
//var writer = new StringWriter();
//var wr = new SimpleWorkerRequest("", "", "", "", writer);
//HttpContext.Current = new HttpContext(wr);
return httpContext.Object;
}
I commented out the problem lines, that seemed to fix it, but I'm still not sure what those lines were supposed to do and why they were causing error.
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Mar 2, 2010
I created a new ASP.NET MVC application and the accompanying unit tests that can be generated automatically. I created a new Controller method and tried to wire up a test. The test failed, and I tried to step through the test code to find out the state of certain variables. The breakpoint showed as being set, but it never was hit.
I did a Google search on this, and there are many other people wondering the same thing - why doesn't this work? The answers have been sketchy at best. The most proliferant seems to be that the unit tests are run in the production configuration instead of the debug configuration, and so several steps are required to get breakpoints to work. Seriously? This is something I would expect to be enabled by default. What good is test code you can't step through? Why create a set of unit tests that require you to jump through several hoops to get this very basic feature running? NUnit (and I suppose others) don't have this issue.
how to get the breakpoints to work were completely different than all the others, and I'd like to know if anyone has an idea of how to enable debugging of the unit tests that are included in Visual Studio 2008.
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Mar 21, 2011
I would like to have information on the available unit testing frameworks in .NET realm. Especially the ones which are suitable for ASP.NET (C# .NET 3.5).
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Aug 10, 2010
I need to implement my own Profile properties and was going to inherit from System.Web.Profile.ProfileBase to achieve this.
What I don't understand is how to best unit test this Profile class in isolation without hitting the database.
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Jan 27, 2011
I'd like to write some code and then just write the unit tests for the important stuff.
I know the tools. I know how to write a unit test.
I wrote some code (couple off classes) and I don't know where to start. I'm missing the semantic.
How to pick up what to unit test ?
Should I unit test every class extra ?
Should I try to simulate every possible variation of method's parameters ?
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Sep 3, 2010
I want to imlement the Unit Testing in my asp.net web application.How to identify the scope of this. I mean, How should i start on this front.
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Nov 11, 2010
I've made a custom model, and I want to mock it. I'm fairly new to MVC, and very new to unit testing. Most approaches I've seen create an interface for the class and then make a mock that implements the same interface. However I can't seem to get this to work when actually passing the interface into the View. Cue "simplified" example:
[code]...
Upon a HttpPost I get a "Cannot create an instance of an interface" exception. I seems that I can't have my cake (passing a model) and eat it (pass mock for unit testing). Maybe there's a better approach to unit testing models bound to views?
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Mar 3, 2011
How can I render a razor view in a Unit Test?When I change for instance a html helper method, I sometimes forget to update all the views which uses that html method. So the view I forgot generates a YSOD.I would like to create unit tests that renders a view and fails if I forgot to make the neccecary updates.
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Sep 27, 2010
is there some property where I can tell Code First to work against a static in memory lists ?
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+ if i use Code First , should I still create a repository to work against this domain model ?
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