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Using Logger & YUI Test Components in Software Printer PDF-417 2d barcode in Software Using Logger & YUI Test Components

Using Logger & YUI Test Components generate, create pdf-417 2d barcode none in software projects Visual Studio Development Tools and Languages There"s more... As you can see there are a lot of assertions already built into YUI. However, I you need to write your own, it can be easily accomplished. Assertions functions generally require an expected value, a value to evaluate, and an optional message to show on errors.

If the assertion fails it calls Assert.fail(), which handles the throwing of necessary errors and ending the test function. Here is an example assertion that evaluates an array to see if it represents a point.

Meaning that the array is of length two, and that both values are numbers, representing x and y coordinates:. YAHOO.util pdf417 2d barcode for None .Assert.

isPoint(actual, message) { if (! (YAHOO.lang.isArray(actual) && 2 == actual.

length && YAHOO.lang.isNumber(actual[0]) && YAHOO.

lang.isNumber(actual[1]))) { Assert.fail(Assert.

_formatMessage(message, "The provided value is not a Point")); } };. Simulating user actions in your tests Depending barcode pdf417 for None on the complexity of your application and the tests you run thereon, you may find it necessary to emulate user behaviors in your test functions. YUI provides a static YAHOO. util.

UserAction object with functions that simulate mouse and keyboard events. This recipe will show you the functions available and how to use them..

Getting ready For this r PDF-417 2d barcode for None ecipe, we will use the following shortcut:. var UserAc tion = YAHOO.util.UserAction;.

You will a pdf417 2d barcode for None lso need to include the event-simulate component:. <script type="text/javascript" src="build/eventsimulate/event-simulate-min.js"></script> 6 . How to do it... Simulate a click event:. UserAction .click("myElementId");. Simulate a pdf417 for None click event and provide additional event information:. UserAction .click("myElementId", {ctrlKey, true});. Simulate e PDF 417 for None ach of the seven mouse events with additional event information:. var myElem ent = document.getElementById(" myElementId"); var bodyElem = document.body; UserAction.

click(myElement, {shiftKey: true}); UserAction.dblclick(myElement, {altKey: true}); UserAction.mouseover(myElement, {relatedTarget: bodyElem}); UserAction.

mouseout(myElement, {relatedTarget: bodyElem}); UserAction.mousedown(myElement, {clientX: 100, clientY: 100}); UserAction.mouseup(myElement, {clientX: 100, clientY: 100}); UserAction.

mousemove(bodyElem, {clientX: 250, clientY: 250}). Simulate e Software pdf417 2d barcode ach of the three key events:. var myInpu tElement = document.getElementById("myElementId"); UserAction.keydown(element, {keyCode: 13}); UserAction.

keyup(element, {keyCode: 13}); UserAction.keypress(element, {charCode: 13});. How it works... YUI takes a two fold approach when simulating events. It first evaluates if the browser is DOMcompliant (browser supports simulated events), falling back on CustomEvents if support is not found. All UserAction functions require that you pass in an element or the id attribute of an element as the first argument.

The mouse events accept an optional configuration object as the second parameter. The key events require the configuration parameter and expect that at least the keyCode or charCode property will be defined. Here are the optional properties you can define for mouse events:.

Property d Software barcode pdf417 etail screenX / screenY clientX / clientY Explanation Used to specify the number of times the mouse is click; only works in DOM-compliant browsers. The coordinates of the mouse event in relation to the screen; only works in DOM-compliant browsers. The coordinates of the mouse event in relation to the browser client area.

. Using Logger & YUI Test Components Property c PDF 417 for None trlKey / shiftKey / altKey / metaKey button relatedTarget Explanation The key down state of the control, alt, shift, and meta keys respectively. Set the value to true to indicate the key is pressed. The mouse button used for event.

Use 0 for left, 1 for center, and 2 for the right button. The element the mouse moved from (during a mouseover event) or to (during a mouseout event)..

None of th ese additional properties are required for the UserAction to fire. It is up to you to specify the additional properties necessary for your event listener functions to execute properly. Here are the properties you can define for key events:.

Property c Software PDF 417 harCode keyCode ctrlKey / shiftKey / altKey / metaKey Explanation The triggering key character code; required for keypress events. The triggering key character code; required for keyup and keydown events. The key down state of the control, alt, shift, and meta keys respectively.

Set the value to true to indicate the key is pressed.. Either the charCode or keyCode properties are required for key events, while the other properties are optional..
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