diff --git a/tests/phpunit/tests/post.php b/tests/phpunit/tests/post.php
index 39a8bae14a..c1657ca271 100644
--- a/tests/phpunit/tests/post.php
+++ b/tests/phpunit/tests/post.php
@@ -559,46 +559,6 @@ class Tests_Post extends WP_UnitTestCase {
 		$this->assertEquals( get_option( 'siteurl' ) . '/2007/10/31/' . $id . '/', $plink );
 	}
 
-	/**
-	 * @ticket 15665
-	 */
-	function test_get_page_by_path_priority() {
-		global $wpdb;
-
-		$attachment = self::factory()->post->create_and_get(
-			array(
-				'post_title' => 'some-page',
-				'post_type'  => 'attachment',
-			)
-		);
-		$page       = self::factory()->post->create_and_get(
-			array(
-				'post_title' => 'some-page',
-				'post_type'  => 'page',
-			)
-		);
-		$other_att  = self::factory()->post->create_and_get(
-			array(
-				'post_title' => 'some-other-page',
-				'post_type'  => 'attachment',
-			)
-		);
-
-		$wpdb->update( $wpdb->posts, array( 'post_name' => 'some-page' ), array( 'ID' => $page->ID ) );
-		clean_post_cache( $page->ID );
-
-		$page = get_post( $page->ID );
-
-		$this->assertEquals( 'some-page', $attachment->post_name );
-		$this->assertEquals( 'some-page', $page->post_name );
-
-		// get_page_by_path() should return a post of the requested type before returning an attachment.
-		$this->assertEquals( $page, get_page_by_path( 'some-page' ) );
-
-		// Make sure get_page_by_path() will still select an attachment when a post of the requested type doesn't exist.
-		$this->assertEquals( $other_att, get_page_by_path( 'some-other-page' ) );
-	}
-
 	function test_wp_publish_post() {
 		$draft_id = self::factory()->post->create( array( 'post_status' => 'draft' ) );