I am very new to Selenium, so my apologies if it's a silly question.
I have successfully wired up IntelliJ (Play! framework) with Selenium, and created some tests using firefoxDrivers.
I'm trying to check if the page had been validated properly.
long story short, I'm selecting an element like this:
WebElement smallDecel = firefoxDriver.findElement(By.cssSelector("#configTable tr:nth-child(2) td .playerDecelInput"));
I do some further operations (clear and change the value, submit the 'form'), and then I want to check if the TD the input sits in was given another class.
So, the question is - is there a simple technique I can use to find out if a WebElement / DOM has a class specified?
To expand on Sam Woods' answer, I use a simple extension method (this is for C#) to test whether or not an element has a specified class:
public static bool HasClass( this IWebElement el, string className ) {
return el.GetAttribute( "class" ).Split( ' ' ).Contains( className );
}
Once you find the element, you can just call myElement.GetAttribute("class"). Then you can parse the string that is returned and see if it contains or does not contain the class name you care about.
You can use FindElement(By.ClassName(//name of your class)); I would recommend that you either loop through and search the DOM for a set period of time or set a Thread.sleep(xxxx) and then look for the appended class.
Related
I have defined attribute MyAttribute : Attribute that is supposed to be used exactly once within a class (only one constructor per class may have it and it can appear only once on ctor’s attribute list).
I have created a Roslyn analyzer to check this which marks every usage of such attribute (if used more than once) and allows user to pick fixture called "Leave this attribute occurrence and delete all others".
Now within FixProvider I need to return new modified Solution. It's not difficult to modify every Document that requires the fix (by using SyntaxRewriter to modify SyntaxTree inside). However, I have no idea how to modify Solution or Project - they don't have any method like "ReplaceProject"/"ReplaceDocument".
How to do that?
You could replace the text of a document using the following method:
solution = solution.WithDocumentText(currentDocument.Id,
currentDocumentSyntaxTree.GetText());
I'm struggling with finding by Xpath. My problem is that the software that I'm testing has one specific function where I need to scan two components (is it called two-step scan) and there are two textboxes without the name and with the same Automationid. So I need to find the second one I tried this but it does not work.
[FindsBy(How = How.Xpath, Using = "//*[#AutomationId='ScanTextBox'][1]")]
public IWebElement ScanTextBox1;
[FindsBy(How = How.Xpath, Using = "//*[#AutomationId='ScanTextBox'][2]")]
public IWebElement ScanTextBox2;
I'm using winium and I'm testing WPF application.
Update locators as described here:
(//*[#AutomationId='ScanTextBox'])[1]
(//*[#AutomationId='ScanTextBox'])[2]
The difference is that in my case (locator)[n]you select n-th element out of all elements found by a locator. And bylocator[n] you search for element that has n-th positions inside parent nodes
You really need to use a FindsBy? We are unable to create a correct XPath to a FindsBy to these buttons without the html. This way, I only can provide you another solution, and update my awnser when the html code be provided.
You can use FindElement, the plural one, that is able to return both. After, you select the desired button by index. A example method able to do it:
public IWebElement GetScanTextBox(int index)
{
return Driver
.FindElements(By.XPath("//*[#AutomationId='ScanTextBox']"))
.ElementAt(index);
}
public void UsageExample()
{
var buttonOne = GetScanTextBox(0);
var buttonTwo = GetScanTextBox(1);
}
I am building a Page Object Model in Selenium WebDriver for C#, using the PageFactory.
Unfortunately, I have discovered that the FindsByAttribute will not initialize a SelectElement (HTML <select> tag / dropdown menu). I've happened upon or come up with a few ideas to work around it so far, but none of them is ideal:
PageFactory and FindsByAttribute are sealed, so I can't force it to by just inheriting those.
Manually instantiating a SelectElement from an IWebElement in each method is rather messy and duplicative. It also ignores the apparent built-in wait in PageFactory and throws NoSuchElementExceptions unless I add a wait every time I do this -- which would require repeating the locator all over the place, defeating (part of) the purpose of the POM.
Wrapping each IWebElement property with a SelectElement property is less messy, but still has the same waiting problem as above.
The best option so far is #3, and writing a wrapper for SelectElement that just adds a wait to every method. While this solution will work, it will bulk up the code of each page a lot, as instead of this (hypothetical) pretty code:
[FindsBy(How = How.Id, Using = "MonthDropdown")]
public SelectElement MonthDropdown;
I'm stuck with a wrapper wrapper (something I'd rather avoid), and:
[FindsBy(How = How.Id, Using = "MonthDropdown")]
private IWebElement _monthDropdown;
public Selector MonthDropdown
{
get { return new Selector(MonthDropdown, Wait); }
}
With Selector being the SelectElement wrapper, that also has to take in the IWait<IWebDriver> so it can wait, and instantiating a new Selector every time I access it.
Is there a better way of doing this?
EDIT: Sleepily put in wrong access modifiers. Fixed. Thanks, #JimEvans.
First, there's no "built-in wait" in the .NET PageFactory implementation. You can easily specify one in the call to InitElements (more on that in a bit). At present, the best option for you would be your option 3, though I wouldn't expose the IWebElement member; I'd make it private, since the PageFactory can enumerate over private members just as easily as public ones. So your page object would look like this:
[FindsBy(How = How.Id, Using = "MonthDropdown")]
private IWebElement dropDown;
public SelectElement MonthDropdownElement
{
get { return new SelectElement(dropdown); }
}
How do you get the actual IWebElement when you need it? Since SelectElement implements IWrappedElement, you can simply call the WrappedElement property if you need access to the methods and properties of the element provided by the IWebElement interface.
Recent versions of the .NET bindings have restructured the PageFactory to be more extensible. To add the "built-in wait" you desire, you could do the following:
// Assumes you have a page object of type MyPage.
// Note the default timeout for RetryingElementLocator is
// 5 seconds, if unspecified.
// The generic version of this code looks like this:
// MyPage page = PageFactory.InitElements<MyPage>(new RetryingElementLocator(driver), TimeSpan.FromSeconds(10));
MyPage page = new MyPage();
PageFactory.InitElements(page, new RetryingElementLocator(driver, TimeSpan.FromSeconds(10)));
Additionally, if you really need to customize how things work, you're always welcome to implement IPageObjectMemberDecorator, which allows you to fully customize how attributes are enumerated and values set to the properties or fields decorated with those attributes. One of the (non-generic) overloads of PageFactory.InitElements takes an instance of an object implementing IPageObjectMemberDecorator.
I'll leave aside that proper implementations of the Page Object Pattern as strictly defined shouldn't expose any WebDriver objects outside of each page object. Otherwise, all you're implementing is a "page wrapper," which is a perfectly valid approach, just not what one would call a "page object."
Consider the following HTML fragment (_ is used for whitespace):
<head>
...
<link ... ___/>
<!-- ... -->
...
</head>
I'm using Html Agility Pack (HAP) to read HTML files/fragments and to strip out links. What I want to do is find the LINK (and some other) elements and then replace them with whitespace, like so:
<head>
...
____________
<!-- ... -->
...
</head>
The parsing part seems to be working so far, I get the nodes I'm looking for. However, HAP tries to fix the HTML content while I need everything to be exactly the same, except for the changes I'm trying to make. Plus, HAP seems to have quite a few bugs when it comes to writing back content that was read in previously, so the approach I want to take is let HAP parse the input and then I go back to the original input and replace content that I don't want.
The problem is, HtmlNode doesn't seem to have an input length property. It has StreamPosition which seems to indicate where reading of the node's content started within the input but I couldn't find a length property that'd tell me how many characters were consumed to build the node.
I tried using the OuterHtml propety but, unfortunately, HAP tries to fix the LINK by removing the ___/ part (a LINK element is not supposed to be closed). Because of this, OuterHtml.Length returns the wrong length.
Is there a way in HAP to get this information?
I ended up modifying the code of HtmlAgilityPack to expose a new property that returns the private _outerlength field of HtmlNode.
public virtual int OuterLength
{
get
{
return ( _outerlength );
}
}
This seems to be working fine so far.
If you want to achieve the same result without recompiling HAP, then use reflection to access the private variable.
I usually wouldn't recommend reflection to access private variables, but I recently had the exact same situation as this and used reflection, because I was unable to use a recompiled version of the assembly. To do this, create a static variable that holds the field info object (to avoid recreating it on every use):
private static readonly FieldInfo HtmlNodeOuterLengthFieldInfo = typeof(HtmlNode).GetField("_outerlength", BindingFlags.NonPublic | BindingFlags.Instance);
Then whenever you want to access the true length of the original outer HTML:
var match = htmlDocument.DocumentNode.SelectSingleNode("xpath");
var htmlLength = (int)HtmlNodeOuterLengthFieldInfo.GetValue(match);
Transformed #Xcalibur's answer into an extension method.
Note that HtmlNode has property OuterLength, but it isn't the same as it's private field _outerlength, which is what we need. (Reading other answers here I first thought that since 2013, HtmlAgilityPack already added the OuterLength as a public property, which they did, but after some testing I noticed it simply returns length of OuterHtml). So we can either rebuild the package from source to expose the field as a public property, or use an extension method with Reflection (which is slow).
Extension method
namespace HtmlAgilityPack
{
public static class HtmlDocumentExtensions
{
private static readonly System.Reflection.FieldInfo HtmlNodeOuterLengthFieldInfo =
typeof(HtmlNode).GetField("_outerlength", System.Reflection.BindingFlags.NonPublic
| System.Reflection.BindingFlags.Instance);
public static int GetOuterLengthInStream(this HtmlNode node) =>
(int)HtmlNodeOuterLengthFieldInfo.GetValue(node ??
throw new System.ArgumentNullException(nameof(node)));
}
}
Because HtmlNode already has property OuterLength, to avoid ambiguity I called the method GetOuterLengthInStream().
Usage
node.GetOuterLengthInStream()
I'm looking for a way to get the JavaScript code defined inside of onclick.
I'm using .NET 2.0 C# Visual Studio 2005.
Example:
<span id="foo" onclick+"window.location.href='someURL'>click here</span>
My goal is to get the string "window.location.href='someURL'".
Scenario:
A user clicks on web page element, the tag shown above for instance, inside of WebBrowser control. Then the clicked tag is refereed to HtmlElement object.
In WebBrowser control I then call HtmlElement object's getAttribute("onclick"), it just gives me "System.__ComObject".
I've searched how to deal with it then found that it can be casted then get the value.
if (tag.GetAttribute("onclick").Equals("System.__ComObject"))
{
Console.WriteLine("dom elem >>>>>>>>>>> " + tag.DomElement.ToString());
mshtml.HTMLSpanElementClass span = (mshtml.HTMLSpanElementClass)tag.DomElement;
Console.WriteLine("js value ===>" + span.onclick);
}
Output:
dom elem >>>>>>>>>>> mshtml.HTMLSpanElementClass
js value ===> System.__ComObject
As it shown, span.onclick still give me System.__ComObject, what am I doing wrong?
In Why does HtmlElement's GetAttribute() method return “mshtml.HTMLInputElementClass” instead of the attribute's value? this guy said it worked in his case, and I've followed it, but mine is somewhat not working...
UPDATE
Research, research.....
I can add reference VisualBasic.dll to my C# project then call the method to find out who is this System.__ComObject really is.
Console.WriteLine(Microsoft.VisualBasic.Information.TypeName(span.onclick));
Output:
JScriptTypeInfo
It looks like this is a JScript type... how can I access this object?
More detail
The above description is based on my current project. The project is to create something like Selenium IDE. It uses WebBrowser control instead.
Selenium IDE creates 3 different things to record an element in the web document.
1. actionType
2. xpath
3. value
For instance,
type, //input[#id=foo], "hello world"
clickAndWait, //link=login, ""
Selenium IDE recognize page load so it changes actionType between "click" and "clickAndWait". My case, I want to make it simple.
If I click on the element and if it is anchor tag or has page load kind of javascript
such as onclick=window.location.href='blah' then I want to set the actionType to "clickAndWait".
There are number of ways you can do it.
There is an Event object in DOM, which will give you information about which element generated this event.
You can look at here, http://msdn.microsoft.com/en-us/library/ff975965%28v=VS.85%29.aspx
This one is good, you can use this easily, you will get the event object as method parameter which you can investigate parameters to find out the source of the event. http://support.microsoft.com/kb/312777
Another alternative is to use a custom navigation url and act upon it
Override BeforeNavigate event
Check for Navigation url if it contains "mycommand:click" or "mycommand:clickandwait" 3. If it contains any of this, then set cancel as true. (this will stop navigation by browser).
Then you can navigate your webbrowser code from your C# code and pass cancel as true.
Another Alternative method is to use External object, WebBrowser allows you to set an ObjectForScripting which you can access within Javascript of HTML.
ObjectForScripting in .NET 2.0
[ComVisible(true)]
public class MyClass
{
// can be called from JavaScript
public void ShowMessageBox(string msg){
MessageBox.Show(msg);
}
}
myBrowser.ObjectForScripting = new MyClass();
// or you can reuse instance of MyClass
And you can call,
window.external.ShowMessageBox("This was called from JavaScript");
Cast the element object to mshtml.IHTMLDOMNode, then read the attributes via IHTMLDOMNode.attributes. HtmlElement.GetAttribute is getting the IDispatch interface of the jscript function generated from the embedded attribute.
As per Sheng Jiang's response, here is some working sample:
IHTMLElement element = YourCodeToGetElement();
string onclick = string.Empty;
IHTMLDOMNode domNode = element as IHTMLDOMNode;
IHTMLAttributeCollection attrs = domNode.attributes;
foreach (IHTMLDOMAttribute attr in attrs)
{
if (attr.nodeName.Equals("onclick"))
{
string attrValue = attr.nodeValue as string;
if (!string.IsNullOrEmpty(attrValue))
{
onclick = attr.nodeValue;
break;
}
}
}
You can try to parse webBrowser1.DocumentText property using HtmlAgilityPack and then get desired result using XPath.
If you don't HAVE to do it with C# (you can do it with JS and create a Postback) you should take a look at THIS question.
You can parse it yourself easily, by first reading obj.outerHtml. That should give you the entire html for that obj, then search it for the value onclick="????" and extract the ???? part.