Why do not they run the phing tests?

I am developing a small project in PHP, I am in the phase of the tests with phing . When I execute phpunit I run the tests (without any error) but when I create a build.xml file to execute it with phing from the XAMPP Shell it tells me that no test has been executed.

This is my build.xml:

<?xml version="1.0"?>

<project name="BUILD" default="build">  
<target name="create_data_base">
   <pdosqlexec url="mysql:host=localhost;dbname=test" userid="root" password=""> 
        <transaction src="db/login.sql"/>           
    </pdosqlexec> 
</target>

<target name="clean">
    <delete dir="../ProyectoLogin/reports"/>                
</target>

<target name="prepare">
    <mkdir dir="../ProyectoLogin/reports"/>     
</target>

<target name="tests">
    <phpunit haltonfailure="true" pharlocation="C:\xampp\php\phpunit.phar" printsummary="true">
        <formatter todir="reports" type="xml"/> 
        <batchtest>
            <fileset dir="tests">
                <include name="**/*Test*.php"/>                 
            </fileset>
        </batchtest>
    </phpunit>
</target>

<target name="build" depends="create_data_base,clean,prepare,tests"/>

The php version is 7.2.5, the phpunit version is 7.2.4 and the phing version is 2.16.1.

Any suggestions?