public function testCanBeNegated() { $table = new Table("users"); $table->set_fields([['name' => 'id', 'auto_increment' => true, 'primary_key' => true, 'size' => 11, 'type' => 'INT'], ['name' => 'username', 'type' => 'VARCHAR', 'size' => '64']]); print Schema::generate_table_query($table); }