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diff --git a/web/core/modules/datetime/tests/src/Kernel/Views/SortDateTimeTest.php b/web/core/modules/datetime/tests/src/Kernel/Views/SortDateTimeTest.php
new file mode 100644
index 000000000..7375c4db2
--- /dev/null
+++ b/web/core/modules/datetime/tests/src/Kernel/Views/SortDateTimeTest.php
@@ -0,0 +1,130 @@
+<?php
+
+namespace Drupal\Tests\datetime\Kernel\Views;
+
+use Drupal\node\Entity\Node;
+use Drupal\views\Views;
+
+/**
+ * Tests for core Drupal\datetime\Plugin\views\sort\Date handler.
+ *
+ * @group datetime
+ */
+class SortDateTimeTest extends DateTimeHandlerTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $testViews = ['test_sort_datetime'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp($import_test_views = TRUE) {
+    parent::setUp($import_test_views);
+
+    // Add some basic test nodes.
+    $dates = [
+      '2014-10-10T00:03:00',
+      '2000-10-10T00:01:00',
+      '2000-10-10T00:02:00',
+      '2000-10-10T00:03:00',
+      '2000-10-10T00:03:02',
+      '2000-10-10T00:03:01',
+      '2000-10-10T00:03:03',
+    ];
+    foreach ($dates as $date) {
+      $node = Node::create([
+        'title' => $this->randomMachineName(8),
+        'type' => 'page',
+        'field_date' => [
+          'value' => $date,
+        ]
+      ]);
+      $node->save();
+      $this->nodes[] = $node;
+    }
+  }
+
+  /**
+   * Tests the datetime sort handler.
+   */
+  public function testDateTimeSort() {
+    $field = static::$field_name . '_value';
+    $view = Views::getView('test_sort_datetime');
+
+    // Set granularity to 'minute', and the secondary node ID order should
+    // define the order of nodes with the same minute.
+    $view->initHandlers();
+    $view->sort[$field]->options['granularity'] = 'minute';
+    $view->setDisplay('default');
+    $this->executeView($view);
+    $expected_result = [
+      ['nid' => $this->nodes[0]->id()],
+      ['nid' => $this->nodes[3]->id()],
+      ['nid' => $this->nodes[4]->id()],
+      ['nid' => $this->nodes[5]->id()],
+      ['nid' => $this->nodes[6]->id()],
+      ['nid' => $this->nodes[2]->id()],
+      ['nid' => $this->nodes[1]->id()],
+    ];
+    $this->assertIdenticalResultset($view, $expected_result, $this->map);
+    $view->destroy();
+
+    // Check ASC.
+    $view->initHandlers();
+    $field = static::$field_name . '_value';
+    $view->sort[$field]->options['order'] = 'ASC';
+    $view->setDisplay('default');
+    $this->executeView($view);
+    $expected_result = [
+      ['nid' => $this->nodes[1]->id()],
+      ['nid' => $this->nodes[2]->id()],
+      ['nid' => $this->nodes[3]->id()],
+      ['nid' => $this->nodes[5]->id()],
+      ['nid' => $this->nodes[4]->id()],
+      ['nid' => $this->nodes[6]->id()],
+      ['nid' => $this->nodes[0]->id()],
+    ];
+    $this->assertIdenticalResultset($view, $expected_result, $this->map);
+    $view->destroy();
+
+    // Change granularity to 'year', and the secondary node ID order should
+    // define the order of nodes with the same year.
+    $view->initHandlers();
+    $view->sort[$field]->options['granularity'] = 'year';
+    $view->sort[$field]->options['order'] = 'DESC';
+    $view->setDisplay('default');
+    $this->executeView($view);
+    $expected_result = [
+      ['nid' => $this->nodes[0]->id()],
+      ['nid' => $this->nodes[1]->id()],
+      ['nid' => $this->nodes[2]->id()],
+      ['nid' => $this->nodes[3]->id()],
+      ['nid' => $this->nodes[4]->id()],
+      ['nid' => $this->nodes[5]->id()],
+      ['nid' => $this->nodes[6]->id()],
+    ];
+    $this->assertIdenticalResultset($view, $expected_result, $this->map);
+    $view->destroy();
+
+    // Change granularity to 'second'.
+    $view->initHandlers();
+    $view->sort[$field]->options['granularity'] = 'second';
+    $view->sort[$field]->options['order'] = 'DESC';
+    $view->setDisplay('default');
+    $this->executeView($view);
+    $expected_result = [
+      ['nid' => $this->nodes[0]->id()],
+      ['nid' => $this->nodes[6]->id()],
+      ['nid' => $this->nodes[4]->id()],
+      ['nid' => $this->nodes[5]->id()],
+      ['nid' => $this->nodes[3]->id()],
+      ['nid' => $this->nodes[2]->id()],
+      ['nid' => $this->nodes[1]->id()],
+    ];
+    $this->assertIdenticalResultset($view, $expected_result, $this->map);
+    $view->destroy();
+  }
+
+}