diff --git a/tests/phpunit/tests/customize/nav-menu-item-setting.php b/tests/phpunit/tests/customize/nav-menu-item-setting.php
index 0c832f3c6887c..124015557be92 100644
--- a/tests/phpunit/tests/customize/nav-menu-item-setting.php
+++ b/tests/phpunit/tests/customize/nav-menu-item-setting.php
@@ -190,7 +190,7 @@ public function test_value_type_post_type() {
 		$value = $setting->value();
 		$this->assertSame( $menu_item->title, $value['title'] );
 		$this->assertSame( $menu_item->type, $value['type'] );
-		$this->assertEquals( $menu_item->object_id, $value['object_id'] );
+		$this->assertSame( (int) $menu_item->object_id, $value['object_id'] );
 		$this->assertSame( $menu_id, $value['nav_menu_term_id'] );
 		$this->assertSame( 'Hello World', $value['original_title'] );
 
@@ -273,7 +273,7 @@ public function test_value_type_taxonomy() {
 		$value = $setting->value();
 		$this->assertSame( $menu_item->title, $value['title'] );
 		$this->assertSame( $menu_item->type, $value['type'] );
-		$this->assertEquals( $menu_item->object_id, $value['object_id'] );
+		$this->assertSame( (int) $menu_item->object_id, $value['object_id'] );
 		$this->assertSame( $menu_id, $value['nav_menu_term_id'] );
 		$this->assertSame( 'Salutations', $value['original_title'] );
 	}
@@ -632,8 +632,17 @@ public function test_sanitize() {
 		$post          = get_post( $nav_menu_item_id );
 		$nav_menu_item = wp_setup_nav_menu_item( clone $post );
 
+		/*
+		 * Keep assertEquals() because sanitize() returns object_id as an integer
+		 * while wp_setup_nav_menu_item() retrieves it as a string from post meta.
+		 */
 		$this->assertEquals( $expected_sanitized['object_id'], $nav_menu_item->object_id );
 		$this->assertSame( $expected_sanitized['object'], $nav_menu_item->object );
+
+		/*
+		 * Keep assertEquals() because sanitize() returns menu_item_parent as an integer,
+		 * while wp_setup_nav_menu_item() retrieves it as a string from post meta.
+		 */
 		$this->assertEquals( $expected_sanitized['menu_item_parent'], $nav_menu_item->menu_item_parent );
 		$this->assertSame( $expected_sanitized['position'], $post->menu_order );
 		$this->assertSame( $expected_sanitized['type'], $nav_menu_item->type );
@@ -697,6 +706,11 @@ public function test_save_updated() {
 		$updated_item              = $menu_items[ $i ];
 		$post_value['post_status'] = $post_value['status'];
 		unset( $post_value['status'] );
+
+		/*
+		 * Keep assertEquals() because object_id is an integer in $post_value
+		 * but is returned as a string from post meta by wp_setup_nav_menu_item().
+		 */
 		foreach ( $post_value as $key => $value ) {
 			$this->assertEquals( $value, $updated_item->$key, "Key $key mismatch" );
 		}
@@ -770,6 +784,11 @@ public function test_save_inserted() {
 		unset( $post_value['status'] );
 		$post_value['menu_order'] = $post_value['position'];
 		unset( $post_value['position'] );
+
+		/*
+		 * Keep assertEquals() because object_id is an integer in $post_value
+		 * but is returned as a string from post meta by wp_setup_nav_menu_item().
+		 */
 		foreach ( $post_value as $key => $value ) {
 			$this->assertEquals( $value, $last_item->$key, "Mismatch for $key property." );
 		}
diff --git a/tests/phpunit/tests/customize/nav-menu-setting.php b/tests/phpunit/tests/customize/nav-menu-setting.php
index 1348c86395a92..b7f9f9b057f4b 100644
--- a/tests/phpunit/tests/customize/nav-menu-setting.php
+++ b/tests/phpunit/tests/customize/nav-menu-setting.php
@@ -232,6 +232,8 @@ public function test_preview_updated() {
 		$this->assertSameSets( $value, wp_array_slice_assoc( $term, array_keys( $value ) ) );
 
 		$menu_object = wp_get_nav_menu_object( $menu_id );
+
+		// Keep assertEquals() because the objects are intentionally compared by value.
 		$this->assertEquals( (object) $term, $menu_object );
 		$this->assertSame( $post_value['name'], $menu_object->name );
 
@@ -277,6 +279,8 @@ public function test_preview_inserted() {
 		$this->assertSame( $menu_id, $term['term_taxonomy_id'] );
 
 		$menu_object = wp_get_nav_menu_object( $menu_id );
+
+		// Keep assertEquals() because the objects are intentionally compared by value.
 		$this->assertEquals( (object) $term, $menu_object );
 		$this->assertSame( $post_value['name'], $menu_object->name );
 
diff --git a/tests/phpunit/tests/customize/widgets.php b/tests/phpunit/tests/customize/widgets.php
index c2ed6dbc661e2..b28246ac35a3f 100644
--- a/tests/phpunit/tests/customize/widgets.php
+++ b/tests/phpunit/tests/customize/widgets.php
@@ -515,6 +515,8 @@ public function test_sanitize_widget_instance_raw_instance() {
 		$this->assertSame( '', $sanitized_for_js['title'] );
 		$this->assertTrue( $sanitized_for_js['is_widget_customizer_js_value'] );
 		$this->assertArrayHasKey( 'instance_hash_key', $sanitized_for_js );
+
+		// Keep assertEquals() because the objects are intentionally compared by value.
 		$this->assertEquals( (object) $block_instance, $sanitized_for_js['raw_instance'] );
 
 		$unsanitized_from_js = $this->manager->widgets->sanitize_widget_instance( $sanitized_for_js );