Top 20 Selenium with C# interview questions with answer
Question: How do you launch a browser using Selenium WebDriver in C#?
Answer: You can launch a browser using Selenium WebDriver in C# using the following code:
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
// Create an instance of the ChromeDriver
IWebDriver driver = new ChromeDriver();
// Open a URL in the browser
driver.Navigate().GoToUrl("https://www.example.com");Question: How do you locate elements using Selenium WebDriver in C#?
Answer: You can locate elements using Selenium WebDriver in C# using various methods such as:
FindElement(By.Id("id"))- Locates an element by its ID attribute.FindElement(By.Name("name"))- Locates an element by its Name attribute.FindElement(By.XPath("xpath"))- Locates an element using XPath expression.FindElement(By.CssSelector("cssSelector"))- Locates an element using CSS selector.
Question: How do you perform actions on elements using Selenium WebDriver in C#?
Answer: You can perform actions on elements using Selenium WebDriver in C# using methods such as:
Click()- Clicks on an element.SendKeys("text")- Enters text into an input field.Clear()- Clears the content of an input field.GetAttribute("attribute")- Retrieves the value of a specified attribute of an element.
Question: How do you handle dropdowns in Selenium WebDriver with C#?
Answer: To handle dropdowns in Selenium WebDriver with C#, you can use the SelectElement class from the OpenQA.Selenium.Support.UI namespace. Here's an example:
using OpenQA.Selenium.Support.UI;
// Select the dropdown element
IWebElement dropdown = driver.FindElement(By.Id("dropdown"));
// Create a SelectElement instance
SelectElement select = new SelectElement(dropdown);
// Select an option by visible text
select.SelectByText("Option 1");
// Select an option by value
select.SelectByValue("value1");
// Select an option by index
select.SelectByIndex(0);Question: How do you handle alerts in Selenium WebDriver with C#?
Answer: To handle alerts in Selenium WebDriver with C#, you can use the SwitchTo() method to switch the focus to the alert. Here's an example:
using OpenQA.Selenium;
// Switch to the alert
IAlert alert = driver.SwitchTo().Alert;
// Accept the alert
alert.Accept();
// Dismiss the alert
alert.Dismiss();
// Get the text of the alert
string alertText = alert.Text;Question: How do you handle frames and iframes in Selenium WebDriver with C#?
Answer: To handle frames and iframes in Selenium WebDriver with C#, you can use the SwitchTo() method to switch the focus to the desired frame. Here's an example:
using OpenQA.Selenium;
// Switch to a frame by index
driver.SwitchTo().Frame(0);
// Switch to a frame by name or ID
driver.SwitchTo().Frame("frameName");
// Switch back to the default content
driver.SwitchTo().DefaultContent();Question: How do you handle multiple windows or tabs in Selenium WebDriver with C#?
Answer: To handle multiple windows or tabs in Selenium WebDriver with C#, you can use the SwitchTo() method to switch the focus to the desired window or tab. Here's an example:
using OpenQA.Selenium;
// Get the current window handle
string currentWindowHandle = driver.CurrentWindowHandle;
// Get the handles of all open windows
List<string> windowHandles = driver.WindowHandles.ToList();
// Switch to a new window
driver.SwitchTo().Window(windowHandles[1]);
// Switch back to the original window
driver.SwitchTo().Window(currentWindowHandle);Question: How do you perform mouse hover actions in Selenium WebDriver with C#?
Answer: To perform mouse hover actions in Selenium WebDriver with C#, you can use the Actions class from the OpenQA.Selenium.Interactions namespace. Here's an example:
using OpenQA.Selenium.Interactions;
// Create an instance of the Actions class
Actions actions = new Actions(driver);
// Move the mouse to the element
actions.MoveToElement(element).Perform();Question: How do you capture screenshots in Selenium WebDriver with C#?
Answer: To capture screenshots in Selenium WebDriver with C#, you can use the ITakesScreenshot interface. Here's an example:
using OpenQA.Selenium;
// Capture a screenshot
Screenshot screenshot = ((ITakesScreenshot)driver).GetScreenshot();
// Save the screenshot to a file
screenshot.SaveAsFile("path/to/screenshot.png", ScreenshotImageFormat.Png);Question: How do you handle browser cookies in Selenium WebDriver with C#?
Answer: To handle browser cookies in Selenium WebDriver with C#, you can use the Cookies property of the IWebDriver interface. Here's an example:
using OpenQA.Selenium;
// Get all cookies
var cookies = driver.Manage().Cookies.AllCookies;
// Add a new cookie
driver.Manage().Cookies.AddCookie(new Cookie("name", "value"));
// Delete a cookie
driver.Manage().Cookies.DeleteCookieNamed("cookieName");Question: How do you perform scrolling in Selenium WebDriver with C#?
Answer: To perform scrolling in Selenium WebDriver with C#, you can use JavaScript execution. Here’s an example:
using OpenQA.Selenium;
// Scroll to the bottom of the page
((IJavaScriptExecutor)driver).ExecuteScript("window.scrollTo(0, document.body.scrollHeight)");
// Scroll to a specific element
((IJavaScriptExecutor)driver).ExecuteScript("arguments[0].scrollIntoView(true);", element);Question: How do you handle synchronization or waits in Selenium WebDriver with C#?
Answer: To handle synchronization or waits in Selenium WebDriver with C#, you can use the WebDriverWait class from the OpenQA.Selenium.Support.UI namespace. Here's an example:
using OpenQA.Selenium;
using OpenQA.Selenium.Support.UI;
// Wait for an element to be visible
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
wait.Until(ExpectedConditions.ElementIsVisible(By.Id("elementId")));Question: How do you generate test reports in Selenium WebDriver with C#?
Answer: Selenium WebDriver with C# does not provide built-in test reporting. However, you can use third-party libraries like NUnit or SpecFlow to generate test reports. These frameworks provide features for test organization, assertions, and test result reporting.
Question: How do you handle test data in Selenium WebDriver with C#?
Answer: Test data can be handled in Selenium WebDriver with C# by using various approaches:
- Reading test data from external files like Excel, CSV, or JSON.
- Using data providers or test data factories to generate test data dynamically.
- Storing test data in variables or constants within the test code.
Question: How do you handle browser navigation in Selenium WebDriver with C#?
Answer: Selenium WebDriver provides navigation methods to handle browser navigation, such as:
Navigate().GoToUrl("url")- Navigates to a specified URL.Navigate().Back()- Navigates back to the previous page.Navigate().Forward()- Navigates forward to the next page.Navigate().Refresh()- Refreshes the current page.
Question: How do you handle browser window resizing in Selenium WebDriver with C#?
Answer: You can handle browser window resizing in Selenium WebDriver with C# using the Manage().Window property. Here's an example:
using OpenQA.Selenium;
// Maximize the browser window
driver.Manage().Window.Maximize();
// Set the browser window size
driver.Manage().Window.Size = new Size(800, 600);Question: How do you handle browser authentication prompts in Selenium WebDriver with C#?
Answer: Selenium WebDriver with C# does not have built-in support for handling browser authentication prompts. However, you can include the username and password in the URL itself, like "http://username:password@example.com", to bypass the authentication prompt.
Question: How do you handle browser-specific issues in Selenium WebDriver with C#?
Answer: To handle browser-specific issues in Selenium WebDriver with C#, you can use browser-specific capabilities or options. For example, when using ChromeDriver, you can set specific options like --start-maximized for maximizing the browser window or --headless for running in headless mode.
Question: How do you handle file uploads in Selenium WebDriver with C#?
Answer: To handle file uploads in Selenium WebDriver with C#, you can use the SendKeys() method to enter the file path into the file input element. For example:
IWebElement fileInput = driver.FindElement(By.Id("fileInput"));
fileInput.SendKeys("path/to/file.txt");For more articles consider making a follow on my account. Thanks…
