Selenium C# Tutorial: Complete Guide with NUnit & WebDriver Examples Great 2025

📌 Selenium C# Tutorial with NUnit Framework – Step-by-Step Guide

Selenium C# Tutorial: Selenium is a powerful open-source automation tool that allows testers to automate web applications across various browsers and platforms. When paired with C# and NUnit, it becomes a robust testing framework ideal for .NET developers.

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🔹📌 What is Selenium?

Selenium C# Tutorial: Selenium is an automation testing tool that supports multiple programming languages including Java, Python, C#, Ruby, and PHP. It can run on various browsers such as Chrome, Firefox, Safari, and Edge, making it a flexible and reliable tool for web testing.

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🔹📌 What is C#?

Selenium C# Tutorial: C# (C-Sharp) is a modern, object-oriented programming language developed by Microsoft. It is widely used for building desktop, web, and cloud-based applications using the .NET Framework.

Key Features of C#:

• Object-Oriented Programming
  
• Rich Library Support
  
• Easy Integration with Visual Studio
  
• Supports Inheritance, Polymorphism, and Encapsulation
  

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📌 Setting Up Selenium WebDriver with C# in Visual Studio

✅ Step-by-Step Setup Instructions:

1. Download Visual Studio: Visit and install the Community Edition.
   
2. Install Workloads:
   
   • Universal Windows Platform Development
     
   • .NET Desktop Development
     
3. Create New Console Project:
   
   • File → New → Project
     
   • Choose Console App (.NET Framework)
     
   • Name the project and click OK
     
4. Install Selenium WebDriver:
   
   • Navigate to Tools → NuGet Package Manager → Manage NuGet Packages for Solution
     
   • Search for Selenium.WebDriver
     
   • Select and install the package
     

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📌 Installing and Integrating NUnit Framework

✅ Installing NUnit and NUnit Test Adapter

1. Open NuGet Package Manager
   
2. Search for NUnit and install it
   
3. Then, search and install NUnit3TestAdapter (for 64-bit systems)
   

✅ Create NUnit Test Class

• Add a new class to the project
  
• Decorate test methods using NUnit attributes like [SetUp], [Test], and [TearDown]
  
• Ensure the chromedriver.exe path is correctly set
  

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✅ Building and Running NUnit Tests

1. Change Output Type to Class Library
   
2. Build the solution (Build → Build Solution)
   
3. Open Test Explorer (Test → Windows → Test Explorer)
   
4. Run the tests and validate output
   

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📌Selenium WebDriver Commands in C#

🔸 Browser Commands

Command	Description	Syntax
driver.Url	Opens a specific URL	driver.Url = “https://site”
driver.Title	Gets the page title	String title = driver.Title
driver.Close()	Closes current browser	driver.Close();
driver.Quit()	Closes all browsers	driver.Quit();
driver.Navigate().Back()	Navigates to previous page

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🔸 WebElement Commands

Command	Description	Syntax
Click	Clicks on an element	element.Click();
Clear	Clears text from textbox	element.Clear();
SendKeys	Enters text into a field	element.SendKeys(“text”);
Displayed	Checks if element is visible	bool status = element.Displayed;
Enabled	Checks if element is enabled	bool status = element.Enabled;
Selected	Checks if element is selected	bool status = element.Selected;
Text	Gets the inner text of an element	string text = element.Text;
TagName	Gets the HTML tag name	string tag = element.TagName;
GetCSSValue	Gets CSS property value (e.g., color)	string color = element.GetCssValue(“color”);

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🔸 Dropdown Handling using SelectElement

Command	Description	Syntax
SelectByText	Selects by visible text	select.SelectByText(“value”);
SelectByValue	Selects by value attribute	select.SelectByValue(“val”);
SelectByIndex	Selects by index	select.SelectByIndex(0);
Options	Gets list of dropdown options	var options = select.Options;
IsMultiple	Checks if multi-select is supported	bool isMulti = select.IsMultiple;
DeselectAll	Deselects all selected items	select.DeselectAll();

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📌 Sample Test Case Scenarios

✅ Example 1: Click Using XPath

Selenium C# Tutorial: csharp

IWebElement link = driver.FindElement(By.XPath(“//a[text()=’Testing’]”));

link.Click();

✅ Example 2: Enter Email & Submit

csharp

IWebElement email = driver.FindElement(By.XPath(“//input[@id=’email’]”));

email.SendKeys(“test@example.com”);

email.Submit();

✅ Example 3: Dropdown Selection

csharp

SelectElement course = new SelectElement(driver.FindElement(By.XPath(“//select[@id=’course’]”)));

course.SelectByText(“Automation”);

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📌 Summary

• Selenium C# Tutorial: Selenium with C# and NUnit provides a strong framework for automated testing.
  
• Visual Studio setup is required to work with C# Selenium.
  
• Use NUnit for writing and managing test cases with attributes like [Test], [SetUp], and [TearDown].
  
• Selenium supports various commands for browser control, element interaction, and dropdown handling.
  
• Code samples and test scenarios make it easy to get started with real-world applications.
  

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