What are locators available in selenium WebDriver and which is best to use?

Ideally, the most preferred locator to recognize a web-element in Selenium WebDriver is ID.

Thus, to identify web elements accurately and precisely we have different types of locators in Selenium:

• ID.
• ClassName.
• Name.
• TagName.
• LinkText.
• PartialLinkText.
• Xpath.
• CSS Selector.

Keeping this in consideration, which is the best locator to use in selenium?

Writing reliable locators for Selenium and WebDriver tests

• IDs are king! IDs are the safest locator option and should always be your first choice.
• CSS and Xpath locators.
• Find an anchoring element.
• When to use 'index' locators like nth-child() and [x]
• CSS class names often tell their purpose.
• Spotting future fragility.
• Direct descendents.
• Adjust it for purpose.

Likewise, what locators you are using? There are 8 locators strategies included in Selenium:

• Identifier.
• Id.
• Name.
• Link.
• DOM.
• XPath.
• CSS.
• UI-element.

Also question is, what are the different types of locators in selenium which one is preferable to use?

As you probably know (given you're familiar with Selenium,) Selenium supports the following types of locators: ^Id, ^Name, ^Class, ^LinkText, ^{PartialLinkText}, ^TagName, ^XPath and ^CssSelector.

What is meant by locators in selenium?

Locator is a command that tells Selenium IDE which GUI elements ( say Text Box, Buttons, Check Boxes etc) its needs to operate on. Identification of correct GUI elements is a prerequisite to creating an automation script.

Why xpath is not recommended?

Even the web application is big, then modifying a huge amount of XPATH is cumbersome and error prone. This refactoring can be avoided to a certain extent by carefully choosing relative XPATH and right locator. However, it can't be completely avoided. That's the reason, it is advised to use other locators when possible.

Which locator is fast in selenium?

Using ID Locator in Selenium WebDriver is the fastest and the most reliable among all the locators. ID's are supposed to be unique to each element, making the ID locator as a dependable choice.

Why CSS selector is faster than xpath?

3 Answers. CSS selectors perform far better than Xpath and it is well documented in Selenium community. Xpath engines are different in each browser, hence make them inconsistent. IE does not have a native xpath engine, therefore selenium injects its own xpath engine for compatibility of its API.

What is the difference between assert and verify?

Difference between Assert and Verify. In case of the “Assert” command, as soon as the validation fails the execution of that particular test method is stopped and the test method is marked as failed. Whereas, in case of “Verify”, the test method continues execution even after the failure of an assertion statement.

Which is faster Xpath or ID?

Technically speaking, By.ID() is the faster technique because at its root, the call goes down to document. getElementById(), which is optimized by most browsers. But, finding elements using XPath is better for locating elements having complex selectors, and is no doubt the most flexible selection strategy.

Why ID is preferred than XPath?

This is because : ID is considered as unique key so there cannot be more than 1 elements for same ID while Xpath is created using relative path/position of elements, so there can be cases when we can get 2 or more elements for same Xpath.

How do you find an element in selenium?

How to Locate Elements using Selenium Python

1. Locate Elements by Name. It is a standard practice to define unique ids for web elements in an HTML code.
2. Locate Elements by ID.
3. Locate Elements by Link Text.
4. Locate Elements by Partial Link Text.
5. Locate Elements by Xpath.
6. Locate Elements by CSS Selector.
7. Locate Elements by Tagname.
8. Locate Elements by Classname.

What are the classes in selenium?

All Classes

• AbstractAnnotations.
• AbstractFindByBuilder.
• AbstractHttpCommandCodec.
• AbstractHttpCommandCodec.CommandSpec.
• AbstractHttpResponseCodec.
• AbstractWebDriverEventListener.
• AcceptAlert.
• AcceptedW3CCapabilityKeys.

How many types of XPath are there?

two

How many types of selenium locators are there?

Different types of Locators There are 8 explicit locators: id, name, identifier, dom, XPath, link, CSS and UI that Selenium's commands support.

What is meant by Dom?

The Document Object Model (DOM) is a programming API for HTML and XML documents. It defines the logical structure of documents and the way a document is accessed and manipulated. Nevertheless, XML presents this data as documents, and the DOM may be used to manage this data.

What is POM selenium?

POM is a design pattern which is commonly used in Selenium for Automating the Test Cases. The Page object is an object-oriented class which acts as an interface for the page of your Application under test. Page class contains web elements and methods to interact with web elements.

What is XPath expression?

XPath Expression. XPath defines a pattern or path expression to select nodes or node sets in an XML document. These patterns are used by XSLT to perform transformations. The path expressions look like very similar to the general expressions we used in traditional file system.

How do I select a dropdown in selenium?

1 Answer

1. Just wrap your WebElement into select Object as shown below. Select dropdown = new Select(driver.findElement(By.id("identifier")));
2. Now to identify dropdown do.
3. To select its option say 'Programmer' you'll be able to do.
4. dropdown.selectByIndex(1);

What is CSS selector?

CSS Selector. CSS selectors are used to select the content you want to style. Selectors are the part of CSS rule set. CSS selectors select HTML elements according to its id, class, type, attribute etc. There are several different types of selectors in CSS.

What is selenium driver?

WebDriver is a web automation framework that allows you to execute your tests against different browsers, not just Firefox, Chrome (unlike Selenium IDE). WebDriver also enables you to use a programming language in creating your test scripts (not possible in Selenium IDE).

How do I take a screenshot using selenium?

Here are the steps to capture a screenshot in selenium in this case:

1. Create a class. Implement TestNG 'ITestListener'.
2. Call the method 'onTestFailure'.
3. Add the code to take a screenshot with this method.
4. Get the Test method name and take a screenshot with the test name. Then place it in the desired destination folder.