Writing First Feature

If you are following the lessons correctly, you have almost completed 80% of the course. With whatever we learned so far, let's put everything together in practice.

Let's create SpecFlow tests using xUnit. You need to set up your SpecFlow project to use xUnit as the test runner and write your feature files and step definitions as usual. Here's a step-by-step guide with an example:

1. Create a SpecFlow Project:

Start by creating a new SpecFlow project in Visual Studio or your preferred IDE.

2. Install Required Packages:

• Install the necessary NuGet packages for SpecFlow and xUnit. You'll need the following packages:
  1. SpecFlow: The SpecFlow framework.
  2. SpecFlow.xUnit: Integration between SpecFlow and xUnit.
  3. xunit: The xUnit testing framework.

3. Configure SpecFlow to Use xUnit:

• Open your app.config or specflow.json file and configure SpecFlow to use xUnit as the test runner. Set the unitTestProvider to xUnit.
• Here's an example of how you can configure SpecFlow in app.config:

<specFlow>
  <unitTestProvider name="xUnit" />
</specFlow>

4. Write Feature Files:

• Write your feature files using Gherkin syntax as usual. Define your test scenarios in a human-readable format.
• Save your feature files with the .feature extension.

Feature: Login Functionality
  In order to access my account
  As a user
  I want to be able to log in to the application

  Scenario: Successful Login
    Given I am on the login page
    When I enter my username and password
    And I click the login button
    Then I should be redirected to the dashboard page
    And I should see a welcome message

5. Write Step Definitions:

• Write your step definitions in C# to define the automation logic for the steps described in your feature files.
• Use attributes provided by xUnit ([Fact], [Given], [When], [Then]) to mark your step definition methods as test methods.
• Decorate your step definition class with the [Binding] attribute to indicate that it contains SpecFlow step definitions.

using TechTalk.SpecFlow;
using Xunit;

[Binding]
public class LoginSteps
{
    [Given("I am on the login page")]
    public void GivenIAmOnTheLoginPage()
    {
        // Automation logic to navigate to the login page
    }

    [When("I enter my username and password")]
    public void WhenIEnterMyUsernameAndPassword()
    {
        // Automation logic to enter username and password
    }

    // Other step definitions for remaining steps...

    [Then("I should be redirected to the dashboard page")]
    public void ThenIShouldBeRedirectedToTheDashboardPage()
    {
        // Automation logic to verify redirection to the dashboard page
    }

    [Then("I should see a welcome message")]
    public void ThenIShouldSeeAWelcomeMessage()
    {
        // Automation logic to verify the presence of the welcome message
    }
}

6. Run Tests:

Build your SpecFlow project and run your tests using the xUnit test runner in Visual Studio or from the command line.

By following these steps and examples, you can create SpecFlow tests using xUnit as the test runner in your .NET projects. This allows you to leverage the features of both SpecFlow and xUnit for behavior-driven testing and unit testing, respectively.