ExceptionStack.php

<?php

class ExceptionStackTestException extends Exception {

}
class ExceptionStackTest extends PHPUnit_Framework_TestCase {
  public function testPrintingChildException() {
    try {
      $this
        ->assertEquals(array(
        1,
      ), array(
        2,
      ), 'message');
    } catch (PHPUnit_Framework_ExpectationFailedException $e) {
      $message = $e
        ->getMessage() . "\n" . $e
        ->getComparisonFailure()
        ->getDiff();
      throw new ExceptionStackTestException("Child exception\n{$message}", 101, $e);
    }
  }
  public function testNestedExceptions() {
    $exceptionThree = new Exception('Three');
    $exceptionTwo = new InvalidArgumentException('Two', 0, $exceptionThree);
    $exceptionOne = new Exception('One', 0, $exceptionTwo);
    throw $exceptionOne;
  }

}