PHPUnit cannot find exception class

You need to fully qualify the exception class along with its namespace. For ex:

$this->setExpectedException('\AssetManagerBundle\Services\Exceptions\ImageResizerException');

or

use AssetManagerBundle\Services\Exceptions\ImageResizerException;$exceptionClass = get_class(new ImageResizerException(''));$this->setExpectedException($exceptionClass);

You need to use the FQCN of the ImageResizerException exception:

AssetManagerBundle\Services\Exceptions\ImageResizerException

The use clause on top of the file is for that file only - not for PHPUnit which has it's code in some other files.

Correction: It's not (only) that the use clause does not work for PHPUnit but because that ReflectionClass expects a FQCN. That is similar when use a variable (dynamic) class-name in PHP like new $var:

<?phpnamespace Sugar {    class Exception extends \Exception {}}namespace {    use Sugar\Exception;    $class = 'Sugar\Exception';    $e = new $class;    var_dump($e);}

Output:

object(Sugar\Exception)#1 (7) {  ["message":protected]=>  string(0) ""  ["string":"Exception":private]=>  string(0) ""  ["code":protected]=>  int(0)  ["file":protected]=>  string(45) "/tmp/execpad-7141d0116de7/source-7141d0116de7"  ["line":protected]=>  int(10)  ["trace":"Exception":private]=>  array(0) {  }  ["previous":"Exception":private]=>  NULL}

Demo: http://eval.in/7883

Instead of writing the class name, use the full namespace of the class instead. Then you will not get the 'class doesn't exist' exception.