java gui testing

Question

in the java test I have :

package Tester.GUI.api
public class Test1{-----}

in the ".bat" :

<path to java> -classpath<all jar defined in the classpath separated by ";"> org.junit.runner.JUnitCore Tester.GUI.api.Test1

when I launch th ".bat" I have the following :

JUnit version 4.6
Could not find class: Tester.GUI.api.Test1
Time: 0,203

OK (0 tests)

I have verified jar files , typo but not found the cause someone could help please?

Answer 1

The -classpath option needs to take a set of directies and/or jar files. Currently those are missing, so your main class (JUnitCore) is being used as the classpath, and Test1 used as the main class. I'm guessing you want JUnitCore as the main class and Test1 as the argument.

Try something like this (substituting the actual names of the jars you're using for jar-file1, jar-file2):

java -classpath <jar-file1.jar>;<jar-file2.jar> org.junit.runner.JUnitCore Tester.GUI.api.Test1

Edit: Assuming jar files are specified correctly, the error message indicates that the Test1 class isn't on the classpath. If you're using an IDE, you need to find the output directory for compilation (for example, in Eclipse it is <project>/bin by default). Within this directory you will find other directories with the structure Tester/GUI/api. A file called Test1.class will be in the api directory. It is this output directory that needs to be added to the classpath (that is, the one above the Tester/GUI/api structure).

Answer 2

It says that the class that it cannot find is Tester.GUI.api.Test1. What directory are you running the test from, and what directory is your Test1 code in?

If you set the -classpath variable, you may also need to include the current directory in your classpath. So, if your original command was

java -classpath C:\foo.jar;D:\bar1\bar2.jar org.junit.runner.JUnitCore Tester.GUI.api.Test1

you could add the current directory to your classpath by adding ;. to the end of your -classpath option like this:

java -classpath C:\foo.jar;D:\bar1\bar2.jar;. org.junit.runner.JUnitCore Tester.GUI.api.Test1

This will work as long as the Test1 class is in the Tester\GUI\api directory under the current directory.

The tricky thing with setting the classpath in Java is that you don't want to give the directory where your actual .java files are, but instead you want to give the directory under which you can find the directories that are named for the packages in your code.

For example, if I compiled a class Foo in a package bar.baz, then I should have a file named Foo.class in a directory named baz inside another directory named bar. If I want to include Foo in my classpath, and if Foo.class is located at C:\Users\Joe\Code\bar\baz\Foo.class, then I have to either run

java -classpath C:\Users\Joe\Code [main class goes here]

or else I have to change my directory to C:\Users\Joe\Code and run

java -classpath . [main class goes here]

Answer 3

now, my java test doesn't work from eclipse whereas it worked yesterday : when I run java the following popup : no junit tests found