diff --git a/tests/phpunit/tests/functions/wpGuessUrl.php b/tests/phpunit/tests/functions/wpGuessUrl.php
index fc9f57c718..cfa21bb4d3 100644
--- a/tests/phpunit/tests/functions/wpGuessUrl.php
+++ b/tests/phpunit/tests/functions/wpGuessUrl.php
@@ -11,11 +11,11 @@ class Tests_Functions_wpGuessUrl extends WP_UnitTestCase {
 	/**
 	 * @ticket 36827
 	 *
-	 * @dataProvider data_guess_url_should_return_site_url
+	 * @dataProvider data_wp_guess_url_should_return_site_url
 	 *
 	 * @param string $url The URL to navigate to, relative to `site_url()`.
 	 */
-	public function test_guess_url_should_return_site_url( $url ) {
+	public function test_wp_guess_url_should_return_site_url( $url ) {
 		$siteurl = site_url();
 		$this->go_to( site_url( $url ) );
 		$this->assertSame( $siteurl, wp_guess_url() );
@@ -26,7 +26,7 @@ class Tests_Functions_wpGuessUrl extends WP_UnitTestCase {
 	 *
 	 * @return array
 	 */
-	function data_guess_url_should_return_site_url() {
+	public function data_wp_guess_url_should_return_site_url() {
 		return array(
 			'no trailing slash'                            => array( 'url' => 'wp-admin' ),
 			'trailing slash'                               => array( 'url' => 'wp-admin/' ),