--- /dev/null
+<?php
+
+namespace Drupal\Tests\datetime_range\Functional\Update;
+
+use Drupal\FunctionalTests\Update\UpdatePathTestBase;
+use Drupal\views\Entity\View;
+
+/**
+ * Test update of views with datetime_range filters.
+ *
+ * @see https://www.drupal.org/node/2786577
+ * @see datetime_range_post_update_views_string_plugin_id()
+ *
+ * @group Update
+ * @group legacy
+ */
+class DatetimeRangeViewUpdateTest extends UpdatePathTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setDatabaseDumpFiles() {
+ $this->databaseDumpFiles = [
+ __DIR__ . '/../../../../../system/tests/fixtures/update/drupal-8.bare.standard.php.gz',
+ __DIR__ . '/../../../../tests/fixtures/update/datetime_range-filter-values.php',
+ ];
+ }
+
+ /**
+ * Tests that datetime_range filter values are updated properly.
+ */
+ public function testViewsPostUpdateDateRangeFilterValues() {
+
+ // Load our pre-update test view.
+ $view = View::load('test_datetime_range_filter_values');
+ $data = $view->toArray();
+
+ // Check pre-update filter values.
+ $filter1 = $data['display']['default']['display_options']['filters']['field_range_value'];
+ $this->assertSame('string', $filter1['plugin_id']);
+
+ // Check pre-update filter with operator going to be mapped.
+ $filter2 = $data['display']['default']['display_options']['filters']['field_range_end_value'];
+ $this->assertSame('string', $filter2['plugin_id']);
+ $this->assertSame('', $filter2['value']);
+ $this->assertSame('contains', $filter2['operator']);
+
+ // Check pre-update sort values.
+ $sort = $data['display']['default']['display_options']['sorts']['field_range_value'];
+ $this->assertSame('standard', $sort['plugin_id']);
+
+ $this->runUpdates();
+
+ // Reload and initialize our test view.
+ $view = View::load('test_datetime_range_filter_values');
+ $data = $view->toArray();
+
+ // Check filter values.
+ $filter1 = $data['display']['default']['display_options']['filters']['field_range_value'];
+ $this->assertSame('datetime', $filter1['plugin_id']);
+ $this->assertSame('2017', $filter1['value']['value']);
+ $this->assertSame('=', $filter1['operator']);
+
+ // Check string to datetime operator/value mapping.
+ $filter2 = $data['display']['default']['display_options']['filters']['field_range_end_value'];
+ $this->assertSame('datetime', $filter2['plugin_id']);
+ $this->assertSame('.*', $filter2['value']['value']);
+ $this->assertSame('regular_expression', $filter2['operator']);
+
+ // Check sort values.
+ $sort = $data['display']['default']['display_options']['sorts']['field_range_value'];
+ $this->assertSame('datetime', $sort['plugin_id']);
+ }
+
+}