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[Part of a series of posts on Java Selenium RC patterns I find useful Buy Rimonabant (Acomplia) Without Prescription, .]

In the last post, we looked at self-verifying PageObjects: Java classes that are "testable representations" of a web app page, and that automatically verify for us, on instantiation, that we have indeed arrived on the actual web page we intended to.

So how do we handle page flow. I've handled it numerous ways in the past. Rimonabant (Acomplia) recreational, I don't like any of them anymore. Ultimately what I wanted, and now have, is something that mimics the way an actual <a href></a> takes you to a new page: classes that represent html links that, buy cheap Rimonabant (Acomplia), when clicked by Selenium, take you (predictably) to new PageObjects or pane objects. So the Selenium RC Java mechanics for page flow are no longer cluttering the test code, nor, in fact, the PageObjects, Buy Rimonabant (Acomplia) Without Prescription. Rimonabant (Acomplia) forum, Instead, I use what I call ElementObject classes. PageLink and DhtmlLink classes, in particular, Rimonabant (Acomplia) interactions, behave like little Factories. When instantiated, Order Rimonabant (Acomplia) online c.o.d, these objects are told which PageObject to instantiate when Selenium "clicks" on the actual html links those classes represent. Whew. Buy Rimonabant (Acomplia) Without Prescription,  Confused yet. Let's see some code, starting with a package structure, where can i order Rimonabant (Acomplia) without prescription, and let's explain ElementObjects more generally.

Background: ElementObjects


[caption id="" align="alignnone" width="467" caption="util.elements package structure"]ElementObject package structure[/caption]


Above are the ElementObject classes I use, Rimonabant (Acomplia) description, in HTMLUnit style, to represent discrete  html element varieties and their behaviors.

(Note: The introductory post in this  series tells you how to get all of this code. If you have the code, buy Rimonabant (Acomplia) online no prescription, explore this little object tree, starting with the abstract BaseElement class. Explore how different pages and panes use these element classes.)

Let's tour a slice of the BaseElement tree briefly, Buy Rimonabant (Acomplia) Without Prescription. Doses Rimonabant (Acomplia) work, Here is the abstract BaseElement class:
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So all elements, since they extend BaseElement, have locators (which are all CSS selectors, as discussed in the previous post), Rimonabant (Acomplia) duration. The isPresent() method (using the conventional Selenium isElementPresent() method), uses vanilla Selenium to reveal whether any element is indeed present in the browser's representation of the HTML, Rimonabant (Acomplia) trusted pharmacy reviews, rendered (usually) by a real HTTP Request/Response cycle. Similarly, isVisible() reveals whether  an element is "visible" after any dynamic call that does NOT involve a real HTTP Request/Reponse cycle. Under the covers, Rimonabant (Acomplia) from mexico, isVisible() uses jQuery to check visibility in the in-memory DOM. Buy Rimonabant (Acomplia) Without Prescription, The short answer to "Why have both?" is that isVisible() is heavier-weight and slower, but usually works when isPresent() does not. The even shorter answer is that browser manufacturers hate each other, Buy Rimonabant (Acomplia) without prescription, and sometimes ignore the w3c, but they all standardize on jQuery.

So, for example, Rimonabant (Acomplia) blogs,  ClickableElement extends BaseElement, and adds just a predictable smidgeon of clickable-ness:
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And further down the tree, Buying Rimonabant (Acomplia) online over the counter, a CheckBox gives us the ability to check a checkbox, or if it is one of those fancy graphical checkbox simulacra, we can just click() on it using the inherited method in ClickableElement. Either way, after Rimonabant (Acomplia), we have checkbox-looking things covered.
[crayon-54949a86c4893/]
Notice all of the static method calls to BrowserDriver.java. We'll cover him in deep detail later, but he is our Decorator/Facade for Selenium and jQuery calls, Buy Rimonabant (Acomplia) Without Prescription. Rimonabant (Acomplia) price, coupon, It provides singleton access to DefaultSelenium and several of its useful methods, as well as several convenience methods we have found useful.

The point here is that only down at the ElementObject level does our framework "know" about BrowserDriver, and the nuts-and-bolts mechanics of getting Selenium (or whatever frameworks we want) to do stuff to real web page elements, fast shipping Rimonabant (Acomplia).

And of course the most essential point is that in our PageObjects, we can represent every HTML element as one of these types, Is Rimonabant (Acomplia) addictive, keeping the test framework code nice and DRY.

In general, this is how the ElementObjects work. Buy Rimonabant (Acomplia) Without Prescription, Caveat Lector: I don't have a full, complete set of these in my sample code; I have the ones I have been using all the time. Feel free to extend this package as necessary (and to send me your contributions), Rimonabant (Acomplia) dose.

PageLinks and DhtmlLinks


Now the meat of this post: how do we get from page to page.

First let's look at how a PageLink client uses it for a field on a PageObject. Rimonabant (Acomplia) over the counter, Let's look at a test for creating a Task in FatFreeCRM:
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Note in the setUp() method that we get to a TasksPage by clicking clickToNewPage() on the tasks field on a MainNavigationTabsSet class, which looks like this:
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Note that tasks field is of type PageLink, parameterized with a class. And notice that when you instantiate a PageLink, you call a PageLink.create() method, Buy Rimonabant (Acomplia) Without Prescription. Between these two things, cheap Rimonabant (Acomplia), we ensure that when we ask Selenium to click on that tasks link, we end up instantiating an actual TasksPage PageObject. Comprar en línea Rimonabant (Acomplia), comprar Rimonabant (Acomplia) baratos, It's a smidge confusing, perhaps. Bear with me. Here is the PageLink class:
[crayon-54949a86c4a13/]
Notice that PageLink extends ClickableElement, purchase Rimonabant (Acomplia) for sale, so whatever element a PageLink object represents, we can click on it. Buy Rimonabant (Acomplia) Without Prescription, Yay. Rimonabant (Acomplia) reviews, Notice also that when we instantiate PageLink, it expects a css locator.

Most critically and cryptically, notice all the Java generics magic, Rimonabant (Acomplia) images, which can be confusing Java syntax to many programmers. The upshot is noisy framework code, Real brand Rimonabant (Acomplia) online, but it keeps explicit casting out of the test code. It keeps the test code very simple indeed.

Now notice what happens when a test method calls the clickToNewPage() method: first, we click on ourselves (which will, if you look at click() in ClickableElement, get BrowserDriver to click on the locator we were instantiated with, Buy Rimonabant (Acomplia) Without Prescription. Then the tricky bits. We call clickToNewPage(), Rimonabant (Acomplia) samples, which asks BrowserDriver.waitForPageToLoad() to let us know when the new page is done loading. Because Selenium can tell when a real HTTP Request/Response cycle is done, Rimonabant (Acomplia) mg, this will work for real pages with actual, different urls.

Then, aha, Rimonabant (Acomplia) from canada. Our little Factory method uses a little lightweight Java Reflection Buy Rimonabant (Acomplia) Without Prescription, to construct and return us an instance of that PageObject whose Class we passed in on instantiation. In MainNavigationTabsSet above, you can see that the tasks PageLink is declared and instantiated with TasksPage.class. Rimonabant (Acomplia) description, So indeed, a self-verifying TasksPage PageObject gets constructed and handed back to test code when that test calls Common.mainNavTabsSet.tasks.clickToNewPage().

So a bit of Java design forethought gives us this ability to click on a tasks link, and proceed without further ceremony to a TasksPage, Rimonabant (Acomplia) online cod. Our page flow does, in fact, Purchase Rimonabant (Acomplia) for sale, much mirror the HTML and pages in the production code.

Our test code (above) is, again, succinct and expressive, and only a link to a page need know how to get there, Buy Rimonabant (Acomplia) Without Prescription. Just like in real life.

Similar to PageLink, DhtmlLink provides us a little factory for dynamic html behaviors (clickToNewContainer()), get Rimonabant (Acomplia), whether they have Ajax-like server conversations, or just change the html in the browser. Rimonabant (Acomplia) maximum dosage, In this case, because we don't have a real HTTP Request/Response cycle, we don't call waitForPageToLoad() on Selenium. Selenium has no idea whether the "page" or "pane" we need is now visible. Our PageObjects take care of that. We just click(). Like PageLink, DhtmlLink uses much of the same Java generics gobbletygook to keep track of concrete Class types to be instantiated at our request. In this case, the base class is BasePane, not BasePage:
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Next up: what the heck is this BrowserDriver thing, and how might we use it.

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