在Junit-4.11中找不到课程

问题描述

我在Mac上配置了Junit-4.11，使用javac进行编译没有错误，但是当我使用java运行时，得到了Could not find class: HelloWorldTest

I configured Junit-4.11 on my Mac, compile with javac has no error, but when I run with java, I got Could not find class: HelloWorldTest

这是我的HelloWorld.java和HelloWorldTest.java

import java.util.*;

public class HelloWorld {
    public String output() {
        return "Hello world!";
    }
}

import static org.junit.Assert.*;
import org.junit.runner.RunWith;
import org.junit.runners.Suite;
import org.junit.Test;
import java.util.*;
import org.junit.*;

public class HelloWorldTest {
    public HelloWorld helloworld = new HelloWorld();

    @BeforeClass
    public static void oneTimeSetUp() {
        System.out.println("@BeforeClass - oneTimeSetUp");
    }
    @AfterClass
    public static void oneTimeTearDown() {
        System.out.println("@AfterClass - oneTimeTearDown");
    }
    @Before
    public void setUp() {
        System.out.println("@Before - setUp");
    }
    @After
    public void tearDown() {
        System.out.println("@After - tearDown");
    }
    @Test
    public void testOutput() {
        assertEquals(helloworld.output(), "Hello world!");
        System.out.println("@Test - testOutput");
    }
}

然后我用

javac -classpath ./ HelloWorldTest.java

和java -classpath ./ org.junit.runner.JUnitCore HelloWorldTest

我得到的是

JUnit version 4.11
Could not find class: HelloWorldTest

Time: 0.002

OK (0 tests)

我将junit-4.11.jar与HelloWorld.java和HelloWorldTest.java放在当前目录中，我也将其放在/Library/Java/Extensions

I put junit-4.11.jar in the current directory with HelloWorld.java and HelloWorldTest.java, I also put it in /Library/Java/Extensions

我想解决的是设置JAVA_HOME和CLASSPATH，但是没有用.

What I tried to solve is to set JAVA_HOME and CLASSPATH, but it did not work.

有人能指出出什么问题了吗?我真的很困惑.

Could someone point out what was going wrong? I was really confused.

谢谢.

我已经通过以下步骤解决了我的问题.我的Mac是Mac OSX 10.8，我使用了Apple提供的JVM-1.6.您可以通过点击此处进行下载.

Well I have solved my problem with the following steps. My Mac is Mac OSX 10.8 and I used JVM-1.6 provided by Apple. You can download it by clicking here.

1. 删除我的.zshrc文件中的CLASSPATH(如果使用的是Bash，我认为它是.bashrc)
2. 删除/Library/Java/Extensions中的JUnit-4.11.jar(或您使用的任何版本)以及放置在其中的任何系统目录.
3. 尝试再次编译并运行它.

1. Delete the CLASSPATH in my .zshrc file(If you are using Bash I think it is .bashrc)
2. Delete the JUnit-4.11.jar(or any version you use) in the /Library/Java/Extensions and any System Directory you put it in.
3. Try to compile again and run it.

然后将JAVA_HOME设置为/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home

谢谢.

推荐答案

更新:原始发布者的解决方案埋在下面的评论中.这与在/Library/Java/Extensions中没有junit jar文件并且没有CLASSPATH有关:

Update: The original poster's solution is buried in a comment below. It has to do with not having the junit jar files in /Library/Java/Extensions, and not having a CLASSPATH:

---

在临时目录中(来自您问题的Java文件):

---

In a temp dir (java files from your question):

HelloWorld.java
HelloWorldTest.java
junit-4.11.jar
hamcrest-core-1.3.jar

然后:

• javac -cp junit-4.11.jar *.java
• java -cp junit-4.11.jar:hamcrest-core-1.3.jar:. org.junit.runner.JUnitCore HelloWorldTest

• javac -cp junit-4.11.jar *.java
• java -cp junit-4.11.jar:hamcrest-core-1.3.jar:. org.junit.runner.JUnitCore HelloWorldTest

输出:

HelloWorldTest
JUnit version 4.11
@BeforeClass - oneTimeSetUp
.@Before - setUp
@Test - testOutput
@After - tearDown
@AfterClass - oneTimeTearDown

Time: 0,004

OK (1 test)

我建议您从头开始重试

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