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The user will become frustrated if message dialogs appear too often, which is why only critical errors and warnings should be reported this way..

instance (a subclass of ActionResult) that contains public properties on which assertions can be performed in a test. The RedirectToRouteResult also contains an Execute method that s used to perform the redirect. In listing 4.7, we set up a unit test for this code along with fake implementations of the dependencies on which the RedirectController relies.

Although not used in Listing 7-7, it is possible to remove a tag from an area of text with gtk_text_buffer_remove_tag_by_name(). This function will remove all instances of the tag between the two iterators if they exist. void gtk_text_buffer_remove_tag_by_name (GtkTextBuffer *buffer, const gchar *name, const GtkTextIter *start, const GtkTextIter *end);

If a company uses a well-designed software development process, the requirements should be provided to at least two sets of people: (1) the designers and implementers of the software and (2) the testers that make up the quality assurance (QA) team The designers and implementers produce code, and the testers generate test plans based on the requirements One might imagine that given the preceding requirement, a tester might generate a test case for a malformed HTTP request A client simply sending a carriage return as an HTTP request is one type of a malformed HTTP request There are, of course, many other types of malformed HTTP requests that could be generated (For examples, see the Crafting Malicious Input chapter in Exploiting Software: How to Break Code, by Greg Hoglund and Gary McGraw.

System; System.Web.Mvc; CodeCampServer.Core.Domain; CodeCampServer.Core.Domain.Model; NUnit.Framework; NUnit.Framework.SyntaxHelpers;

Note These functions only remove tags from a certain range of text. If the tag was added to a larger range

namespace MvcInAction.Controllers.UnitTests { [TestFixture] public class RedirectControllerTester { [Test] public void ShouldRedirectToTheNextConference() { var conferenceToFind = new Conference{Key = "thekey", Name = "name"}; var repository = new ConferenceRepositoryStub(conferenceToFind); var controller = new RedirectController(repository); RedirectToRouteResult result = controller.NextConference();

) If a test plan for SimpleWebServer covered malformed HTTP headers, then the hope is that the vulnerability would get caught during testing However, without proper requirements, it may be hard to generate a good test plan, and hence hard to prevent software security vulnerabilities When test plans are generated, there should not only be test cases that test the functional correctness of the software, but there should also be test cases generated for security A functional test case tests that a software feature functions correctly when provided proper input On the other hand, a security test case tests that a software feature does not malfunction when provided improper or malicious input Some companies hire both functional QA and security QA engineers, who are responsible for generating different types of test cases.

of text than the range specified, the tag will be removed for the smaller range, and new bounds will be created on either side of the selection. You can test this with the application in Listing 7-7.

Assert.That( result.RouteValues["controller"], Is.EqualTo("conference")); Assert.That(result.RouteValues["action"], Is.EqualTo("index")); Assert.That( result.RouteValues["conferenceKey"], Is.EqualTo("thekey")); } private class ConferenceRepositoryStub : IConferenceRepository { private readonly Conference _conference;

If you have access to the GtkTextTag object, you can remove the tag with gtk_text_buffer_ remove_tag(). It is also possible to remove every tag within a range with gtk_text_buffer_remove_ all_tags().

public ConferenceRepositoryStub(Conference conference) { _conference = conference; } public Conference GetNextConference() {

Even with a good test plan, there may be an infinite number of HTTP requests with malformed headers that one can construct, and it is not sufficient to rely only on cases in a test plan the code that processes HTTP headers should be manually inspected for security holes in addition to correctness and performance during code review While such a vulnerability in the web server seems overly simplistic, similar types of vulnerabilities do occur in real-world software A vulnerability in which sending a packet of data may cause a server to crash or shut down unexpectedly is called a ping-of-death or packet-ofdeath attack For instance, Nokia developed a wireless gateway router called a GGSN that was susceptible to such a vulnerability (Whitehouse, Grand, and Hassick 2003).

In some applications, you may want to insert images into a text buffer. This can easily be done with GdkPixbuf objects. In Figure 7-8, two images were inserted into a text buffer as GdkPixbuf objects.