这是一个基于Maven的基础项目,主要用于初学者练习Java使用。

已经存在的代码主要讲解如何使用测试,我们看到HelloWorldTest下有两个测试,第一个测试演示了如何进行集成测试和使用Assert。

第二个测试演示了如何进行mock。

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId>ut-workshop1</groupId>

<artifactId>ut-workshop1</artifactId>

<version>1.0-SNAPSHOT</version>

<dependencies>

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>4.9</version>

<type>jar</type>

<scope>test</scope>

<optional>true</optional>

</dependency>

<dependency>

<groupId>org.mockito</groupId>

<artifactId>mockito-all</artifactId>

<version>1.9.5</version>

<scope>test</scope>

</dependency>

<dependency>

<groupId>org.easytesting</groupId>

<artifactId>fest-assert-core</artifactId>

<version>2.0M10</version>

</dependency>

</dependencies>

</project>

public class Dependency {

public String say(){

return "Leave me alone.";

}

}

public class HelloWorld {

private Dependency dependency;

public HelloWorld(Dependency dependency) {

this.dependency = dependency;

}

public String beenCalled() {

return dependency.say();

}

}

import org.junit.Test;

import static org.fest.assertions.api.Assertions.assertThat;

import static org.mockito.Mockito.mock;

import static org.mockito.Mockito.when;

public class HelloWorldTest {

@Test

public void hello_world_test() {

//given

Dependency dependency = new Dependency();

HelloWorld helloWorld = new HelloWorld(dependency);

//when

String actual = helloWorld.beenCalled();

//then

assertThat(actual).isEqualTo("Leave me alone.");

}

@Test

public void should_be_mocked() {

//given

Dependency dependency = mock(Dependency.class);

when(dependency.say()).thenReturn("Hello World");

HelloWorld helloWorld = new HelloWorld(dependency);

//when

String actual = helloWorld.beenCalled();

//then

assertThat(actual).isEqualTo("Hello World");

}

}