--- /dev/null
+<?php
+
+namespace Drupal\views\Tests\Update;
+
+use Drupal\system\Tests\Update\UpdatePathTestBase;
+use Drupal\views\Entity\View;
+
+/**
+ * Tests the upgrade path for views field handlers.
+ *
+ * @see views_post_update_cleanup_duplicate_views_data()
+ *
+ * @group Update
+ */
+class FieldHandlersUpdateTest extends UpdatePathTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setDatabaseDumpFiles() {
+ $this->databaseDumpFiles = [
+ __DIR__ . '/../../../../system/tests/fixtures/update/drupal-8.bare.standard.php.gz',
+ __DIR__ . '/../../../tests/fixtures/update/duplicate-field-handler.php',
+ ];
+ }
+
+ /**
+ * Tests that field handlers are updated properly.
+ */
+ public function testViewsUpdate8004() {
+ $this->runUpdates();
+
+ // Load and initialize our test view.
+ $view = View::load('test_duplicate_field_handlers');
+ $data = $view->toArray();
+ // Check that the field is using the expected base table.
+ $this->assertEqual('node_field_data', $data['display']['default']['display_options']['fields']['nid']['table']);
+ $this->assertEqual('node_field_data', $data['display']['default']['display_options']['filters']['type']['table']);
+ $this->assertEqual('node_field_data', $data['display']['default']['display_options']['sorts']['vid']['table']);
+ $this->assertEqual('node_field_data', $data['display']['default']['display_options']['arguments']['nid']['table']);
+ }
+
+}