Cucumber Testing Tool in Java

Cucumber is a popular tool for behavior-driven development (BDD) that enables testers and developers to write tests in a human-readable language. In this blog post, we will guide you through the fundamentals of Cucumber and demonstrate how to create a simple test using Java and Cucumber.

Prerequisites

Before we dive into Cucumber, ensure you have the following set up on your system:

1.Java Development Kit (JDK) installed

2.An Integrated Development Environment (IDE) like IntelliJ or Eclipse

Adding Dependencies

To use Cucumber in a Java project, you need to add the necessary dependencies. If you are using Maven, update your pom.xml file with the following dependencies:

Writing Feature Files

Feature files in Cucumber are written using Gherkin syntax and outline the application's behavior. Let's create a simple feature file named 'calculator. Feature':

In this example, we have defined a feature called "Calculator" with a scenario that tests the addition of two numbers.

Step Definitions

Next, we need to define step definitions that map the Gherkin steps to Java code. Create a Java class named CalculatorSteps in the src/test/java directory:

In the above Java code, we have defined step definitions for the four steps in our feature file. The @Given, @When, and @Then annotations map the Gherkin steps to the corresponding Java methods.

Test Runner

Now, we need to create a test runner to execute the Cucumber scenarios. Create a Java class named TestRunner in the src/test/java directory:

In the TestRunner class, we use the @CucumberOptions annotation to specify the location of our feature files and step definitions using the features and glue attributes, respectively.

Running the Test

To run the test, right-click on the TestRunner class in your IDE and choose "Run 'TestRunner'." If everything is set up correctly, you should see the output indicating that the test has passed.

Final Thoughts

The test runner serves as an entry point to your Cucumber scenarios, allowing you to integrate Cucumber with the testing framework of your choice.

Cucumber's Gherkin syntax and step definitions provide a collaborative and readable way to define and automate your test scenarios. In real-world projects, you can extend Cucumber's capabilities by integrating it with various testing frameworks and tools like Selenium or RestAssured to test web applications or APIs.