@covers PHPUnit_Framework_Constraint_PCREMatch @covers PHPUnit_Framework_Constraint_Not @covers PHPUnit_Framework_Assert::matchesRegularExpression @covers PHPUnit_Framework_Assert::logicalNot @covers PHPUnit_Framework_TestFailure::exceptionToString
public function testConstraintPCRENotMatch2() {
  $constraint = PHPUnit_Framework_Assert::logicalNot(PHPUnit_Framework_Assert::matchesRegularExpression('/foo/'));
  try {
    $constraint
      ->evaluate('barfoobar', 'custom message');
  } catch (PHPUnit_Framework_ExpectationFailedException $e) {
    $this
      ->assertEquals(<<<EOF
custom message
Failed asserting that 'barfoobar' does not match PCRE pattern "/foo/".
EOF
, PHPUnit_Framework_TestFailure::exceptionToString($e));
    return;
  }
  $this
    ->fail();
}