public function __construct($level = 1)
{
$data = [];
$data['caller'] = CodeCaller::fromBacktrace(debug_backtrace(), $level);
$msg = "unreachable code executed at " . $data['caller']['file'] . ':' . $data['caller']['line'];
parent::__construct(500, $msg, $data);
}
public function __construct($value, $reason = null)
{
$data = [];
$data['value'] = $value;
$data['reason'] = $reason;
$data['caller'] = CodeCaller::fromBacktrace(debug_backtrace(), 2);
$msg = "contract failed at " . $data['caller']['file'] . ':' . $data['caller']['line'] . "; failed value is: " . print_r($value, true);
if ($reason !== null) {
$msg .= '; contract is: ' . $reason;
}
parent::__construct(500, $msg, $data);
}
/**
* @covers ::fromBacktrace
*/
public function testRetrievesFileAndLineToo()
{
// ----------------------------------------------------------------
// setup your test
// we don't call debug_backtrace() directly here, because the whole
// point of the CodeCaller is to workout who called whatever code
// provides the debug_backtrace() result
$backtrace = $this->getBacktrace();
$expectedFile = __FILE__;
$expectedLine = 92;
// ----------------------------------------------------------------
// perform the change
// this is a '0' here because of the perculiar way in which PHPUnit
// calls tests methods ... it really challenges the PHP call stack
// data
$actualCaller = CodeCaller::fromBacktrace($backtrace, 0);
// ----------------------------------------------------------------
// test the results
$this->assertEquals($expectedFile, $actualCaller[2]);
$this->assertEquals($expectedLine, $actualCaller[3]);
}
/**
* work out who is throwing the exception
*
* @param int $level
* how deep into the backtrace we need to go
*
* this is relative to the caller
* @return array
* the calling class, and the calling method
*/
private function getCaller($level = 1)
{
// let's find out who is trying to throw this exception
$backtrace = debug_backtrace();
return CodeCaller::fromBacktrace($backtrace, $level + 1);
}