<?php
$breakTheTests=false;

if($breakTheTests) {
    echo 'This will cause a RuntimeException';
}

class Dennis_UnitTest_OutputBreaksTest extends PHPUnit_Framework_TestCase
{
    /**
     * @runInSeparateProcess
     * @return null
     */
    public function testOne() {
         $this->assertTrue(true);
    }
}
/*
 * Output:

$breakTheTests=false;
[richardg@hydra UnitTest]$ phpunit OutputBreaksTest.php
PHPUnit 3.4.0 by Sebastian Bergmann.

.

Time: 1 second

OK (1 test, 1 assertion)

=========================

$breakTheTests=true;

[richardg@hydra UnitTest]$ phpunit OutputBreaksTest.php
This will cause a RuntimeExceptionPHPUnit 3.4.0 by Sebastian Bergmann.

E

Time: 0 seconds

There was 1 error:

1) Dennis_UnitTest_SeparationTest::testOne
RuntimeException: This will cause a RuntimeExceptiona:4:{s:10:"testResult";N;s:13:"numAssertions";i:1;s:6:"result";O:28:"PHPUnit_Framework_TestResult":16:{s:9:"


FAILURES!
Tests: 1, Assertions: 0, Errors: 1.
 */