Greenmail maven project

GreenMail is a popular open-source library used to test email functionality in Java applications. Here's a step-by-step guide to setting up a GreenMail Maven project:

Prerequisites

Step 1: Add GreenMail dependency to your Maven project

In your pom.xml file, add the following dependency:

<dependencies>
    <dependency>
        <groupId>com.icegreen</groupId>
        <artifactId>greenmail</artifactId>
        <version>1.6.6</version>
        <scope>test</scope>
    </dependency>
</dependencies>

Step 2: Configure GreenMail

Create a new Java class that will configure GreenMail. For example, create a file called GreenMailConfig.java:

import com.icegreen.greenmail.junit.GreenMailRule;
import com.icegreen.greenmail.util.GreenMail;

public class GreenMailConfig {
    @Rule
    public GreenMailRule greenMailRule = new GreenMailRule(2, null);

    public GreenMail getGreenMail() {
        return greenMailRule.getSmtp();
    }
}

This class sets up a GreenMailRule, which will start a GreenMail server and configure it to listen for incoming emails.

Step 3: Write a test class

Create a new Java class that will test your email functionality. For example, create a file called EmailTest.java:

import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

import com.icegreen.greenmail.junit.GreenMailRule;
import com.icegreen.greenmail.util.GreenMail;

@RunWith(GreenMailRule.class)
public class EmailTest {
    @Rule
    public GreenMailRule greenMailRule = new GreenMailRule(2, null);

    private GreenMail greenMail;

    @Before
    public void setup() {
        greenMail = greenMailRule.getSmtp();
    }

    @Test
    public void testEmail() {
        // Send an email using your email functionality
        //...

        // Check if the email was received
        greenMail.getMessages();
    }
}

This class uses the GreenMailRule to start a GreenMail server and configure it to listen for incoming emails. The setup() method is called before each test, which sets up the GreenMail server. The testEmail() method sends an email using your email functionality and checks if the email was received.

Step 4: Run the test

Run the EmailTest class using Maven:

mvn test

This will start the GreenMail server and run the test. If the test passes, it means that your email functionality is working correctly.

That's it! You have now set up a GreenMail Maven project to test your email functionality.