Integrating Spring Boot with Cucumber for an e‐commerce application - ganmath/learners GitHub Wiki

Step 1: Set Up Your Spring Boot Project

Create a new Spring Boot project using Spring Initializr or your preferred method. Ensure you include the following dependencies in your pom.xml (for Maven) or build.gradle (for Gradle).

Maven

Add the following dependencies to your pom.xml file:

<dependencies>
    <!-- Spring Boot Dependencies -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <!-- Cucumber Dependencies -->
    <dependency>
        <groupId>io.cucumber</groupId>
        <artifactId>cucumber-spring</artifactId>
        <version>7.0.0</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.cucumber</groupId>
        <artifactId>cucumber-java</artifactId>
        <version>7.0.0</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.cucumber</groupId>
        <artifactId>cucumber-junit</artifactId>
        <version>7.0.0</version>
        <scope>test</scope>
    </dependency>
</dependencies>

Gradle

Add the following dependencies to your build.gradle file:

dependencies {
    // Spring Boot Dependencies
    implementation 'org.springframework.boot:spring-boot-starter'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'

    // Cucumber Dependencies
    testImplementation 'io.cucumber:cucumber-spring:7.0.0'
    testImplementation 'io.cucumber:cucumber-java:7.0.0'
    testImplementation 'io.cucumber:cucumber-junit:7.0.0'
}

Step 2: Create a Cucumber Test Runner

Create a test runner class to configure and run your Cucumber tests. This class should be placed in the src/test/java directory.

import org.junit.platform.suite.api.ConfigurationParameter;
import org.junit.platform.suite.api.IncludeEngines;
import org.junit.platform.suite.api.SelectClasspathResource;
import org.junit.platform.suite.api.Suite;

import static io.cucumber.junit.platform.engine.Constants.GLUE_PROPERTY_NAME;

@Suite
@IncludeEngines("cucumber")
@SelectClasspathResource("features")
@ConfigurationParameter(key = GLUE_PROPERTY_NAME, value = "com.example.ecommerce")
public class CucumberTestRunner {
}

Step 3: Create a Cucumber Configuration Class

Create a configuration class to set up the Spring context for Cucumber.

import io.cucumber.spring.CucumberContextConfiguration;
import org.springframework.boot.test.context.SpringBootTest;

@CucumberContextConfiguration
@SpringBootTest
public class CucumberSpringConfiguration {
}

Step 4: Create Feature Files

Create your feature files in the src/test/resources/features directory. Each feature file should describe a specific feature and contain scenarios written in Gherkin syntax.

Example: src/test/resources/features/user_registration.feature

Feature: User Registration

  Scenario: Successful user registration
    Given I am on the registration page
    When I enter valid user details
    And I submit the registration form
    Then I should see a registration success message

Example: src/test/resources/features/product_search.feature

Feature: Product Search

  Scenario: Successful product search
    Given I am on the homepage
    When I enter a product name in the search bar
    And I click on the search button
    Then I should see the search results for the product

Step 5: Create Step Definitions

Create step definition classes to define how each step in your feature file should be executed. Place these classes in the appropriate package (e.g., com.example.ecommerce).

Example: src/test/java/com/example/ecommerce/UserRegistrationStepDefinitions.java

import io.cucumber.java.en.Given;
import io.cucumber.java.en.When;
import io.cucumber.java.en.Then;

public class UserRegistrationStepDefinitions {

    @Given("I am on the registration page")
    public void i_am_on_the_registration_page() {
        // Navigate to the registration page
    }

    @When("I enter valid user details")
    public void i_enter_valid_user_details() {
        // Enter user details
    }

    @When("I submit the registration form")
    public void i_submit_the_registration_form() {
        // Submit the registration form
    }

    @Then("I should see a registration success message")
    public void i_should_see_a_registration_success_message() {
        // Verify the success message
    }
}

Example: src/test/java/com/example/ecommerce/ProductSearchStepDefinitions.java

import io.cucumber.java.en.Given;
import io.cucumber.java.en.When;
import io.cucumber.java.en.Then;

public class ProductSearchStepDefinitions {

    @Given("I am on the homepage")
    public void i_am_on_the_homepage() {
        // Navigate to the homepage
    }

    @When("I enter a product name in the search bar")
    public void i_enter_a_product_name_in_the_search_bar() {
        // Enter product name in the search bar
    }

    @When("I click on the search button")
    public void i_click_on_the_search_button() {
        // Click on the search button
    }

    @Then("I should see the search results for the product")
    public void i_should_see_the_search_results_for_the_product() {
        // Verify the search results
    }
}

Step 6: Run Your Cucumber Tests

Run your Cucumber tests using your preferred method (e.g., IDE, Maven, Gradle). The tests will be executed based on the configuration provided in the test runner class.

Optional: Configure Cucumber Options

You can customize Cucumber options by adding configuration parameters to the test runner class or using a cucumber.properties file.

@ConfigurationParameter(key = "cucumber.publish.enabled", value = "true")
@ConfigurationParameter(key = "cucumber.plugin", value = "pretty")

Conclusion

By following these steps, you can integrate Spring Boot with Cucumber and start writing and running BDD-style tests for your e-commerce application. This setup allows you to ensure your application behaves as expected, enhancing the quality and reliability of your software.

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