public function testCanTellIfExceptionASymptom()
{
// fixture doesn't have a cause
$this->assertFalse($this->fixture->hasCause());
$this->assertNull($this->fixture->getCause());
$this->assertFalse($this->fixture->wasCausedBy("Exception"));
// these fixture do have a root cause
$this->assertTrue($this->fixtureWithRootCause->hasCause());
$this->assertTrue($this->fixtureWithSymptom->hasCause());
}
public function next()
{
// we can go no further if we're already off the end
// of this list
if ($this->current === null) {
return false;
}
// if we are at the end of the list, time to fall off
// the end
//
// the last item in the list can be one of two types
// of Exception:
//
// a) A generic PHP 5 Exception object, or
// b) A framework Exception that has no cause data
if (!$this->current instanceof MF_Exception_Enterprise || !$this->current->hasCause()) {
$this->current = null;
$this->level++;
return false;
}
// if we get here, then we have not yet reached the end
// of the list
$this->current = $this->current->getCause();
$this->level++;
return true;
}
