Serial Port Using Javascript In Selenium

There are many ways to access, interact and communicate with external USB devices using serial communication with Javascript. The main problem is that from the browser, due to security reasons, it is not possible to access the USB port directly t. What can JavaScript and Selenium JavaScriptExecutor do for us? First thing to know that the JavaScriptExecutor comes separately and also comes under the WebDriver but both do the same thing. With in the WebDriver, it is named as ExecuteScript. Below you will find the examples for both. You can use any of it.

Like bow ties, Javascript is cool. People love it so much that they're bringing it everywhere (server, desktop UI, etc). If you do Javascript development, you probably love it for its funkiness - even if your code is pretty crazy. But that's ok, because your code base is (hopefully) extensively tested.. But wouldn’t you love it if everything (tests included) were in Javascript? Ok, maybe your unit tests already are (more on this later), but what about the functional ones, too? Download setup.exe pes 2013. Well, good news awaits. Now you can write your tests in Javascript with the WD.js (pronounced wood) node library and run them across multiple browsers in parallel using Selenium. Read on to learn more about three different projects to help with this.

Parallel WD and Synchronous Parallel WD

One of the biggest pains of web development is the heterogeneity of the platforms on which your code will run. Even if things are getting better with more people following a standard, things are far from perfect, especially with the rise of mobile web. One of the roles of automation and testing is to make it easier to check that your code is behaving correctly in all browsers. Up until recently, you could share the test logic, but you still had to set up the different browser and you had no way to run in parallel. These two libraries, Parallel WD and Synchronous Parallel WD, are designed to take the pain away and address those problems. This is achieved by letting you write your test once, declare the browsers in which you want the test run, and then let the libraries run it in parallel - all while keeping it as close to the same vanilla browser code. This library comes in two flavors. One is a classical Javascript asynchronous callback-based library. The vanilla asynchronous test looks like this:

The parallelized version looks like this:

As you can see, the test logic is identical. The only difference is declaring the array of browsers. The synchronous flavor follows exactly the same principals, but is based on the wd-sync library, which lets you write your tests in a more classical, procedural way. Here is an example:

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WD Unit

The last library I want to discuss is wd-unit. Earlier, I mentioned Javascript unit tests. There are a lot of great unit test frameworks out there, such as Jasmine, foounit and QUnit, to name a few. Since Selenium is for web browser automation, it's better suited for functional testing rather than unit testing. So what is this wd-unit and how can it help you? Selenium drives the web browsers that Javascript unit tests are run in, so it actually makes a lot of sense to pair them together. This is what wd-unit does - automate the running of your Javascript unit tests. Here's an example. Let's say you have a some foounit test cases. You could easily write a script that launches the browser aimed at the right page. But you still have two problems: how do you know when everything has finished and how do you get the results? This is where Selenium and wd-unit come in. They will run your tests and then output the results back to the console they were launched from. Additionally, using Selenium has some added benefits. You can run everything in the cloud with a service such as Sauce Labs across multiple browsers in parallel. This is what running the Jasmine example tests (remote) look like with Sauce:

This code, which runs on the Pivotal example page from the Sauce cloud, outputs the results to your console after running in parallel across Firefox and Chrome on Linux and Windows. You can run it across even more browsers in parallel by adding additional desired capabilities to the tests. To contribute to these projects, visit wd.js on Github. Happy testing!

I'm using Selenium Webdriver + Java to do automation tests and stuck with the problem of setting a value in span control. I have a drop-down with list of clients, the 1st client is selected by default - 'Harry', but I need to change the client to be other than default, e.g. I tried to search here and came with the following code: Webelement element = driver.findElement(By.xpath('//[email protected]= 'SelectedClientDirectorIDchosen '/a/span')); ((JavascriptExecutor)driver).executeScript('arguments0.innerText = 'Simon', element); It seems to be fine, the element is found, it's innerText property is changed to 'Simon' while script is being executed.

But as soon as I click 'save' button on the page, the record is saved with the 1st value - 'Harry'. I could not find the answer on why the new value is not saved. Html looks like. Harry Harry Simon Robin Brian Rupert Greg Appreciate any clue.

Changing innerText value might not bring expected result in your case. You can try to click on drop-down and select required option just like real user do: driver.findElement(By.xpath('xpathForDropDownButton')).click; driver.findElement(By.xpath('//litext='Simon')).click; You might also need to wait some time until required elements become clickable: WebDriverWait wait = new WebDriverWait(driver, 15); wait.until(ExpectedConditions.elementToBeClickable(By.xpath('xpathForDropDownButton'))).click; wait.until(ExpectedConditions.elementToBeClickable(By.xpath('//litext='Simon'))).click.