diff --git a/tests/phpunit/tests/post/nav-menu.php b/tests/phpunit/tests/post/nav-menu.php
index 3153853159..08241af64e 100644
--- a/tests/phpunit/tests/post/nav-menu.php
+++ b/tests/phpunit/tests/post/nav-menu.php
@@ -40,7 +40,7 @@ class Tests_Post_Nav_Menu extends WP_UnitTestCase {
 			)
 		);
 
-		$this->assertSame( 0, strpos( $menu, '<ul' ) );
+		$this->assertStringStartsWith( '<ul', $menu );
 	}
 
 	function test_wp_get_associated_nav_menu_items() {
diff --git a/tests/phpunit/tests/url.php b/tests/phpunit/tests/url.php
index 8b858f2755..8da76b3939 100644
--- a/tests/phpunit/tests/url.php
+++ b/tests/phpunit/tests/url.php
@@ -250,7 +250,7 @@ class Tests_URL extends WP_UnitTestCase {
 		$home_https = str_replace( 'http://', 'https://', $home );
 
 		// is_ssl() should determine the scheme in the admin.
-		$this->assertSame( 0, strpos( $home, 'http://' ) );
+		$this->assertStringStartsWith( 'http://', $home );
 		$_SERVER['HTTPS'] = 'on';
 		$this->assertSame( $home_https, network_home_url() );