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
- Maven 3.6.0 or higher
- Java 8 or higher
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.