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POHow to test HttpApplication Object with HttpApplicationState
 

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  1. POHow to test HttpApplication Object with HttpApplicationState
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    <p>I am trying to test a 'plugin' for an ASPNET HttpApplication that is loaded on <code>Application_Start</code>.</p> <p>The code is something like this:</p> <pre class="lang-cs prettyprint-override"><code>private HttpApplication application; public void Application_Start(object sender, EventArgs e) { this.application = sender as HttpApplication; StartReportService(); } private void StartReportService() { HandledReports = new SortedList&lt;string, string&gt;(); HandledReports.Add("myindex","myvalue"); } public System.Collections.Generic.SortedList&lt;String, String&gt; HandledReports { get { application.Application.Lock(); var handledReports = (SortedList&lt;String, String&gt;)application.Application["handledReports"]; application.Application.UnLock(); return handledReports; } set { application.Application.Lock(); application.Application["handledReports"] = value; application.Application.UnLock(); } } </code></pre> <p>The problem is that I cannot find a good way to test the <code>HttpApplicationState</code> mainly because the <code>HttpApplication.Application</code> property is not overridable and there does not seem to be a <code>HttpApplicationBase</code> class in the <code>System.Web.Abstractions</code> that would allow this.</p> <p>I have tried variations of the following, always running into a road block each time.</p> <pre class="lang-cs prettyprint-override"><code>[TestMethod()] public void StartReportService_ApplicationStateShouldContainMyIndex() { //No HttpApplicationBase in System.Web.Abstractions, must use Real Object var application = new Mock&lt;HttpApplication&gt;(); //Real object does not have a property of type HttpApplicationStateBase so must use real one? //var applicationStateBase = new Mock&lt;HttpApplicationStateBase&gt;(); //real one not creable so HACK get private constructor var ctor = typeof(HttpApplicationState).GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic, null, new Type[] { }, new ParameterModifier[] { }); var applicationState = (HttpApplicationState)ctor.Invoke(new Object[] { }); //fails here, HttpApplication.Application not overridable application.SetupProperty(x =&gt; x.Application, applicationState); var plugin = HttpApplicationPlugin.HttpApplicationPluginInstance; plugin.Application_Start(application.Object,null); ...evaluate result... } </code></pre> <p>Could anyone shed some light on some good approaches for me? This is the first test of more that will rely on being able to have a functioning HttpApplicationState mocked.</p>
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