[junit] java.lang.ClassNotFoundException: UserActivityTest

[Haifeng Jiang]

Hello everyone!
When I 'ant test' in command line to run my Junit test class, I continue getting ClassNotFoundException.

My build.xml is as below:

<?xml version="1.0" encoding="UTF-8"?>
<project name="Liquid30033" basedir=".." default="compile_targets">

	<property name="src.dir" value="src" />
	<property name="lib.dir" value="${basedir}/lib" />
	<property name="class.dir" value="${basedir}/classes" />

	<!-- Class path definition-->
	<path id="compile.classpath">
		<pathelement path="${env.classpath}" />
		<fileset dir="${lib.dir}">
			<include name="*.jar" />
		</fileset>
	</path>

    <!-- junit Class path definition-->
    <path id="junit.classpath">
        
        <fileset dir="${class.dir}">
            <include name="**/*.class" />
        </fileset>
    </path>
	
	<!-- clean class -->
	<target name="clean" description="Delete old build and dist directories">
		<echo message="clean temporary file and directory" />
		<delete>
            <fileset dir="${class.dir}">
                <include name="**/*.class" />
            </fileset>
        </delete>
	</target>

	<!-- compile java file -->
	<target name="compile_targets" description="Compile Java sources" depends="clean">
		<echo message="Compile all classes" />
		<mkdir dir="${class.dir}" />
		<javac srcdir="${src.dir}" destdir="${class.dir}">
			<classpath refid="compile.classpath" />
		</javac>

		<copy todir="${class.dir}">
			<fileset dir="${src.dir}" excludes="**/*.java" />
		</copy>
	</target>

	<taskdef name="junit" classname="org.apache.tools.ant.taskdefs.optional.junit.JUnitTask">
            <classpath>
                <pathelement location="${lib.dir}/junit.jar"/>
                <pathelement location="${lib.dir}/ant-junit.jar"/>
            </classpath>
        </taskdef>
	<!-- compile java file -->
	<target name="test" description="run Junit test case" depends="compile_targets">
		<junit fork="yes" printsummary="yes">
			<classpath refid="junit.classpath" />
			<formatter type="brief" usefile="false" />
			<test name="UserActivityTest" />
		</junit>

		<fail if="junit.failure" message="Unit test failed. Please see the report" />
	</target>
</project>

The output when 'ant test' in command line:

C:\workspaceForRSA\Liquid30033\ant>ant test
Buildfile: build.xml
Trying to override old definition of datatype junit

clean:
     [echo] clean temporary file and directory
   [delete] Deleting 3 files from C:\workspaceForRSA\Liquid30033\classes

compile_targets:
     [echo] Compile all classes
    [javac] Compiling 3 source files to C:\workspaceForRSA\Liquid30033\classes

test:
    [junit] Running UserActivityTest
    [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec
    [junit] Testsuite: UserActivityTest
    [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec

    [junit] Null Test:  Caused an ERROR
    [junit] UserActivityTest
    [junit] java.lang.ClassNotFoundException: UserActivityTest
    [junit]     at java.lang.Class.forName(Class.java:136)


    [junit] Test UserActivityTest FAILED

BUILD SUCCESSFUL
Total time: 4 seconds

I am sure that the UserActivityTest.class is under ${class.dir} directory. Could anyone help on this? Thanks so much!

[Haifeng Jiang]

I modified the build.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<project name="Liquid30033" basedir=".." default="compile_targets">

	<property name="src.dir" value="src" />
	<property name="lib.dir" value="${basedir}/lib" />
	<property name="class.dir" value="${basedir}/classes" />

	<!-- Class path definition-->
	<path id="compile.classpath">
		<pathelement path="${env.classpath}" />
		<fileset dir="${lib.dir}">
			<include name="*.jar" />
		</fileset>
	</path>

	<!-- junit Class path definition-->
	<path id="junit.classpath">
		<pathelement location="${class.dir}" />
        <pathelement location="${lib.dir}/*.jar" />
	</path>

	<!-- clean class -->
	<target name="clean" description="Delete old build and dist directories">
		<echo message="clean temporary file and directory" />
		<delete>
			<fileset dir="${class.dir}">
				<include name="**/*.class" />
			</fileset>
		</delete>
	</target>

	<!-- compile java file -->
	<target name="compile_targets" description="Compile Java sources" depends="clean">
		<echo message="Compile all classes" />
		<mkdir dir="${class.dir}" />
		<javac srcdir="${src.dir}" destdir="${class.dir}" verbose="true">
			<classpath refid="compile.classpath" />
		</javac>

		<copy todir="${class.dir}">
			<fileset dir="${src.dir}" excludes="**/*.java" />
		</copy>
	</target>

	<taskdef name="junit" classname="org.apache.tools.ant.taskdefs.optional.junit.JUnitTask">
		<classpath>
			<pathelement location="${lib.dir}/junit.jar" />
			<pathelement location="${lib.dir}/ant-junit.jar" />
		</classpath>
	</taskdef>
	<!-- compile java file -->
	<target name="test" description="run Junit test case" depends="compile_targets">
		<junit printsummary="yes" failureproperty="junit.failure">
			<classpath refid="junit.classpath" />
			<formatter type="brief" usefile="false" />
			<test name="support.operations.contracts.timer.report.UserActivityTest" />
		</junit>

		<fail if="junit.failure" message="Unit test failed. Please see the report" />
	</target>
</project>

But when run 'ant test', I still got error:

test:
    [junit] Running support.operations.contracts.timer.report.UserActivityTest
    [junit] Tests run: 1, Failures: 1, Errors: 0, Time elapsed: 0 sec
    [junit] Testsuite: support.operations.contracts.timer.report.UserActivityTest
    [junit] Tests run: 1, Failures: 1, Errors: 0, Time elapsed: 0 sec

    [junit] Testcase: testMain(support.operations.contracts.timer.report.UserActivityTest):     FAILED
    [junit] expected:<false> but was:<true>
    [junit] junit.framework.AssertionFailedError: expected:<false> but was:<true>
    [junit]     at support.operations.contracts.timer.report.UserActivityTest.testMain(Unknown Source)


    [junit] Test support.operations.contracts.timer.report.UserActivityTest FAILED

BUILD FAILED
C:\workspaceForRSA\Liquid30033\ant\build.xml:59: Unit test failed. Please see the report

Total time: 3 seconds

This time the error should be caused by my test class. But I don't know what's wrong in my test class, could you please have a look?

package support.operations.contracts.timer.report;

import java.io.File;
import junit.framework.TestCase;

public class UserActivityTest extends TestCase {

    /* (non-Javadoc)
     * @see junit.framework.TestCase#setUp()
     */
    protected void setUp() throws Exception {
        super.setUp();
    }

    /* (non-Javadoc)
     * @see junit.framework.TestCase#tearDown()
     */
    protected void tearDown() throws Exception {
        super.tearDown();
    }

    /**
     * Test method for {@link support.operations.contracts.timer.report.UserActivity#main(java.lang.String[])}.
     */
    public void testMain() {
        // test if properties file exist
        File file = new File("./config/log4j.properties");
        assertEquals(file.exists(), true);
        file = new File("./config/db.properties");
        assertEquals(file.exists(), true);
        
        UserActivity.main(new String[]{});
        
        // test if output CSV file exist
        file = new File("./src/support/operations/contracts/timer/report/AuditReport.csv");
        assertEquals(file.exists(), true);
    }

}

BTW, when I use Eclipse to 'Run As -> JUnit Test', it works fine.

[Haifeng Jiang]

Now I go further...
but still got problem with the 'file path'

public void testMain() {
        // test if properties file exist
        File file = new File("../config/log4j.properties");  //in this way, ant works, but use eclipse run ant doesn't work
        File file = new File("./config/log4j.properties");  //in this way, ant doesn't work, but eclipse works

        assertEquals(file.exists(), true);
        file = new File("../config/db.properties");
        assertEquals(file.exists(), true);
        
        UserActivity.main(new String[]{});
//        
//        // test if output CSV file exist
//        file = new File("../src/support/operations/contracts/timer/report/AuditReport.csv");
//        assertEquals(file.exists(), true);
    }

see here:
File file = new File("../config/log4j.properties"); //in this way, ant works, but use eclipse run ant doesn't work
File file = new File("./config/log4j.properties"); //in this way, ant doesn't work, but eclipse works
Anyone who know the solution, please help!!!

[Haifeng Jiang]

seems I am helping myself to fix the problem.

The error is caused by the path of build.xml. When I put it under <project_dir>/ant/ , Ant didn't work. So I put it under <project_dir>, then Ant works for me.
It caused by the relative path.
<project name="XXX" basedir="." default="run"> -- in build.xml
public static final String LOG4J_CONFIG_FILE_PATH = "./config/log4j.properties"; --in my Java class

build.xml should always put under project directory directly. In this way, it will avoid some unnecessary troubles.
Also http://ant.apache.org/manual/Tasks/java.html, it help me a lot!