ZendTest\Stratigility\MiddlewarePipeTest::invalidHandlers PHP Method

    public function invalidHandlers()
    {
        return ['null' => [null], 'bool' => [true], 'int' => [1], 'float' => [1.1], 'string' => ['non-function-string'], 'array' => [['foo', 'bar']], 'object' => [(object) ['foo' => 'bar']]];
    }