diff --git a/tests/phpunit/tests/customize/nav-menus.php b/tests/phpunit/tests/customize/nav-menus.php
index 1b1ab2c21a..62550a5233 100644
--- a/tests/phpunit/tests/customize/nav-menus.php
+++ b/tests/phpunit/tests/customize/nav-menus.php
@@ -1144,7 +1144,12 @@ class Test_WP_Customize_Nav_Menus extends WP_UnitTestCase {
 		$this->assertStringContainsString( ' data-customize-partial-type="nav_menu_instance"', $result );
 		$this->assertTrue( (bool) preg_match( '/data-customize-partial-placement-context="(.+?)"/', $result, $matches ) );
 		$context = json_decode( html_entity_decode( $matches[1] ), true );
-		$this->assertSame( $original_args, wp_array_slice_assoc( $context, array_keys( $original_args ) ) ); // Because assertArraySubset is not available in PHP 5.2.
+
+		foreach ( $original_args as $key => $value ) {
+			$this->assertArrayHasKey( $key, $context );
+			$this->assertSame( $value, $context[ $key ] );
+		}
+
 		$this->assertTrue( $context['can_partial_refresh'] );
 	}
 
diff --git a/tests/phpunit/tests/widgets/wpWidgetMedia.php b/tests/phpunit/tests/widgets/wpWidgetMedia.php
index 74b3ac8b99..921e099770 100644
--- a/tests/phpunit/tests/widgets/wpWidgetMedia.php
+++ b/tests/phpunit/tests/widgets/wpWidgetMedia.php
@@ -95,8 +95,15 @@ class Tests_Widgets_wpWidgetMedia extends WP_UnitTestCase {
 		$this->assertSame( $id_base, $widget->id_base );
 		$this->assertSame( $name, $widget->name );
 
-		$this->assertArraySubset( $widget_options, $widget->widget_options );
-		$this->assertArraySubset( $control_options, $widget->control_options );
+		foreach ( $widget_options as $key => $value ) {
+			$this->assertArrayHasKey( $key, $widget->widget_options );
+			$this->assertSame( $value, $widget->widget_options[ $key ] );
+		}
+
+		foreach ( $control_options as $key => $value ) {
+			$this->assertArrayHasKey( $key, $widget->control_options );
+			$this->assertSame( $value, $widget->control_options[ $key ] );
+		}
 	}
 
 	/**