/**
  * Ensure we can convert comma separated args to an array properly before using \calderawp\swp_api\route::comma_arg() in tests.
  *
  * @since 0.2.0
  *
  * @covers \calderawp\swp_api\route::comma_arg()
  */
 public function test_comma_arg()
 {
     $class = new \calderawp\swp_api\route('swp-api');
     $this->assertEquals(array(1, 2, 3), $class->comma_arg('1,2,3'));
     $this->assertEquals(0, $class->comma_arg(0));
     $this->assertEquals('mordor', $class->comma_arg('mordor'));
 }