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Navigate to File Save for Web & Devices, and use the Preset drop-down to view the different file formats available for optimizing and saving images. There are three basic file types you can save your image as: JPEG, GIF, and PNG. Although there are technical differences between file types, the end user usually doesn t know or care what type is used. Your goal is to select a preset that results in the highestquality image at the lowest image size. Keep in mind the larger an image, the longer it takes to download, so a web site using several large images will take longer to load. JPEGs are superior to GIFs for storing full-color or grayscale images such as photographs, while GIFs and PNGs are great for images with a few colors and/or sharp edges, such as logos or text. GIFs and PNGs also allow you to include transparency, which is ideal for blocks and other layered page elements. My recommendation is to try multiple presets and determine which one results in the best image at the smallest size.

With HttpUnit, you can simulate submitting a form, test the pages returned by requests, and check rudimentary JavaScript Typically, you would combine HttpUnit with JUnit HtmlUnit is similar to HttpUnit except it chooses to model the pages instead of the requests and responses of HttpUnit HtmlUnit simulates the browser and works in conjunction with JUnit One interesting feature of HttpUnit is its ability to emulate specific browsers, thereby allowing you to test any browser-specific logic you may have Building upon HttpUnit is the Java-based jWebUnit Essentially, jWebUnit greatly simplifies navigation rules and provides some ready-made assertions Once again, you would use this tool with JUnit Moving beyond JUnit is the acceptance-testing framework FitNesse, written by some folks at Object Mentor What makes FitNesse unique is that your customers can use it to define what your application should do.

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Note HTTPS and WS-Secure Conversation differ in one important way: HTTPS is not typically used for

By default, Photoshop and Illustrator save every slice that has been created. To save a specific slice, select File Save for Web & Devices, select the Slice Select tool in the upper-left corner of the box, and select the slice you want to save (hold the Ctrl key to select multiple slices). When you click the Save button, a dialog box appears for you to select the folder in which to save your files. At the bottom of the box, select Selected Slices in the Slices drop-down, as shown in Figure 9-18.

Figure 9-18. Select Selected Slices from the Slices drop-down to save only the selected slices rather than all slices.

You (or your customer!) create tables of inputs and expected outcomes that are then run against your application Like you would expect, successful tests are green, and failures are red FitNesse is meant to be a complement to xUnit-based tests using Object Mentor s pithy language, xUnit makes sure you built the code right, while FitNesse makes sure you built the right code! The moral of this short section is that you have a number of options in the testing arena While we ve highlighted free tools, proprietary options also exist, of course At the end of the day, we recommend a blended approach that takes advantage of the various strengths of all these tools Experiment with what we ve touched on here, and search the Web for options that we didn t cover you ll soon settle on the right approach for your team..

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