public function test_big_integer()
 {
     $this->dbal->shouldReceive('addColumn')->with('column', 'bigint', ['autoIncrement' => false, 'unsigned' => false]);
     $this->table->bigInteger('column');
     $this->dbal->shouldReceive('addColumn')->with('column', 'bigint', ['autoIncrement' => true, 'unsigned' => true]);
     $this->table->bigInteger('column', true, true);
 }