In this tutorial, we will show you how to test Spring’s components with TestNG.
Tools used :
- TestNG 6.8.7
- Spring 3.2.2.RELEASE
- Maven 3
- Eclipse IDE
1. Project Dependencies
To integrate Spring with TestNG, you need spring-test.jar, add the following :
pom.xml
<properties>
<spring.version>3.2.2.RELEASE</spring.version>
<testng.version>6.8.7</testng.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>${testng.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
2. Spring Component
Create a simple Spring component, later we will test this component with TestNG.
EmailGenerator.java
package com.mkyong.testng.project.service.email;
public interface EmailGenerator {
String generate();
}
RandomEmailGenerator.java
package com.mkyong.testng.project.service.email;
import org.springframework.stereotype.Service;
@Service
public class RandomEmailGenerator implements EmailGenerator {
@Override
public String generate() {
return "[email protected]";
}
}
3. TestNG + Spring
Create a Spring configuration file in test folder, for Spring components scanning.
${project}/src/test/resources/spring-test-config.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
">
<context:component-scan base-package="com.mkyong.testng" />
</beans>
To access the Spring components in TestNG, extends AbstractTestNGSpringContextTests, see the following example :
${project}/src/test/java/com/mkyong/testng/examples/spring/TestSpring.java
package com.mkyong.testng.examples.spring;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.testng.AbstractTestNGSpringContextTests;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.mkyong.testng.project.service.email.EmailGenerator;
@Test
@ContextConfiguration(locations = { "classpath:spring-test-config.xml" })
public class TestSpring extends AbstractTestNGSpringContextTests {
@Autowired
EmailGenerator emailGenerator;
@Test()
void testEmailGenerator() {
String email = emailGenerator.generate();
System.out.println(email);
Assert.assertNotNull(email);
Assert.assertEquals(email, "[email protected]");
}
}
Output
[email protected]
PASSED: testEmailGenerator
===============================================
Default test
Tests run: 1, Failures: 0, Skips: 0
===============================================
Download Source Code
Download it – TestNG-Spring-Example.zip (35 KB)
terrible,dont waste your time on this
I have looked for a setup example with TestNG + Spring + Cucumber + SureFire – there are lots of examples with JUnit, but not with TestNG. I want to be able to run the test from Maven in order to integrate the test into Jinkins, when I run with JUnit it runs the tests, but it is unable to find any tests when running through TestNG. Does anyone has a working example?
no profiles configuration..
Hello sir,
First of all thank you for providing such a beautiful tutorials. Can you please provide a TestNG + Spring MVC integration tutorial.
Thank you.
My project is bases on Maven+Spring +MyBatis
Why do I get the following errors:
FAILED CONFIGURATION: @BeforeClass springTestContextPrepareTestInstance
java.lang.IllegalStateException: Failed to load ApplicationContext
…
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘homeController’: Unsatisfied dependency expressed through field ‘userService’: Error creating bean with name ‘userService’: Unsatisfied dependency expressed through field ‘userMapper’: No qualifying bean of type [kz.ismailov.ESchoolProject.mappers.UserMapper] found for dependency [kz.ismailov.ESchoolProject.mappers.UserMapper]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [kz.ismailov.ESchoolProject.mappers.UserMapper] found for dependency [kz.ismailov.ESchoolProject.mappers.UserMapper]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘userService’: Unsatisfied dependency expressed through field ‘userMapper’: No qualifying bean of type [kz.ismailov.ESchoolProject.mappers.UserMapper] found for dependency [kz.ismailov.ESchoolProject.mappers.UserMapper]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [kz.ismailov.ESchoolProject.mappers.UserMapper] found for dependency [kz.ismailov.ESchoolProject.mappers.UserMapper]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
Needs to add to
– pom.xml:
org.springframework.integration
spring-integration-core
${spring.version}
– @ContextConfiguration(locations = { “classpath*:spring-test-config.xml” })
Spring-context is missing from the dependencies, and you also forgot to mention the needed TestNG Eclipse plug-in. Sorry, but an incomplete example is worse than no example at all.
Hi ,
I am facing “FAILED CONFIGURATION: @BeforeClass springTestContextPrepareTestInstance” issue while running a test case create using TestNG. Please help me out.
Your blogs are really good…. Seriously…
Note that assertEquals parameters are reversed: first put the expected value and then the actual, and not the other way around
Good…
Thats great.
Thanks,
Udhayakumar G K
http://saibabaprayerrequest.blogspot.in
Hi mkyong
please provide a tutorial for GWT framework with a example project for GWT + spring.
Thank you very much.