Junit test fails but build is successful (Ant)

Question

Hi i'm quite new to using ant, my instructor wanted us to use it to do some tasks like build the class, run tests..etc

and i am really confused since i cant make the junit work. i have read several other posts and sources but it makes me even more confused.

the error i am getting is:

Testsuite: SolutionTest
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0 sec

Caused an ERROR
SolutionTest
java.lang.ClassNotFoundException: SolutionTest
  at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
  at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
  at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:340)

this is my build file:

<project name="Solution" basedir="." default="main">
    <property name="src.dir"     value="src"/>
    <property name="build.dir"   value="build"/>

    <property name="classes.dir" value="${build.dir}/classes"/>
    <property name="jar.dir" value="${build.dir}/jar"/>
    <property name="doc.dir" value="${build.dir}/documentation" />
    <property name="test.dir" value="${build.dir}/test" />      

    <target name="compile">
        <mkdir dir="${classes.dir}"/>
            <javac srcdir="${src.dir}" destdir="${classes.dir}" includeantruntime="false">
        </javac>
    </target>

    <target name="jar" depends="compile">
        <mkdir dir="${jar.dir}"/>
            <jar destfile="${jar.dir}/${ant.project.name}.jar" basedir="${classes.dir}">
        </jar>
    </target>

    <target name="clean" depends="jar">
        <delete dir="${classes.dir}"/>
    </target>

    <target name="doc" depends="clean">
        <mkdir dir="${doc.dir}" />
        <javadoc destdir="${build.dir}/documentation" sourcefiles="${src.dir}/*.java" />
    </target>

    <target name="junit" depends="doc">
        <mkdir dir="${test.dir}" />
        <junit printsummary="yes" haltonfailure="no">
            <classpath location="." />

            <test name="SolutionTest" haltonfailure="no" todir="${test.dir}" outfile="result">
                <formatter type="plain" />
                <formatter type="xml" />
            </test>
        </junit>
    </target>

    <target name="main" depends="clean, junit"/>
</project>

JUnit cannot find the tests. Change the `` to point to where you actually place the compiled .class files. I don't see where you're compiling your tests, though. You may need a target similar to the compile target, just with tests.dir or such instead of src.dir. — Robert, Sep 13 '16 at 22:33
It looks like your junit target doesn't depend on any compile target. It depends on `doc` which depends on `clean`, but there is no compilation step in there. You might need to compile your classes and test dependencies to `test.dir` and then point your `classpath` element to that dir instead of `.` — jmrah, Sep 13 '16 at 22:34
To make JUnit fail the build when tests fail (or it cannot find them), change `haltonfailure` to "yes" in the junit target. — Robert, Sep 13 '16 at 22:34

score 7 · Answer 1 · edited Jan 20 '20 at 14:20

You should use <junit haltOnFailure="yes" haltOnError="yes" ...> if you want build to fail.

Alternatively you can use failureProperty and errorProperty

<junit failureProperty="test.failure" errorProperty="test.error">
    <!-- your code here -->
</junit>

And verify if those properties was set

<target name="main" depends="clean, junit, verifyNoError, verifyNoFailure"/>

<target name="verifyNoError" if="test.error">
    <fail message="JUnit test or tests errors."/>
</target>

<target name="verifyNoFailure" if="test.failure">
    <echo message="I'm here. Now what?"/>
    <fail message="JUnit test or tests failed."/>
</target>

Junit test fails but build is successful (Ant)

1 Answers1