/**
* Get the next scheduled repeat post
*
* @param int $post_id The id of a repeat or repeating post
* @return Int|Bool Return the original repeating post_id or false if it can't find it
*/
function get_repeating_post($post_id)
{
$original_post_id = false;
// Are we publishing a repeat post
if (is_repeat_post($post_id)) {
$original_post_id = get_post($post_id)->post_parent;
} elseif (is_repeating_post($post_id)) {
$original_post_id = $post_id;
}
return $original_post_id;
}
function test_repeating_post_interval_monthly()
{
$_POST['hm-post-repeat'] = 'monthly';
$post = $this->factory->post->create_and_get();
$this->assertTrue(is_repeating_post($post->ID));
$future_posts = get_posts(array('post_status' => 'future'));
$this->assertCount(1, $future_posts);
$repeat_post = reset($future_posts);
$this->assertTrue(is_repeat_post($repeat_post->ID));
$next_post_date = date('Y-m-d H:i:s', strtotime($post->post_date . ' + 1 month'));
$this->assertSame($repeat_post->post_date, $next_post_date);
}