diff --git a/core/tests/Drupal/Tests/Component/Utility/HtmlTest.php b/core/tests/Drupal/Tests/Component/Utility/HtmlTest.php
deleted file mode 100644
index 5d91526..0000000
--- a/core/tests/Drupal/Tests/Component/Utility/HtmlTest.php
+++ /dev/null
@@ -1,89 +0,0 @@
-<?php
-
-/**
- * @file
- * Container Drupal\Tests\Component\Utility\UserAgentTest
- */
-
-namespace Drupal\Tests\Component\Utility;
-
-use Drupal\Component\Utility\Html;
-use Drupal\Tests\UnitTestCase;
-
-/**
- * Tests the http query methods.
- *
- * @group Utility
- *
- * @coversDefaultClass \Drupal\Component\Utility\Html
- */
-class HtmlTest extends UnitTestCase {
-
-  /**
-   * Test HTML document loading.
-   *
-   * @dataProvider providerTestLoad
-   * @covers ::load
-   *
-   * @param string $html
-   *   Original HTML.
-   * @param array $tags
-   *   A list of tags to find. Key is tag, value is number instances.
-   */
-  public function testLoad($html, $tags) {
-    $doc = Html::load($html);
-    // If we have a document we did our job.
-    $this->assertInstanceOf('\DomDocument', $doc);
-
-    foreach ($tags as $tag_name => $length) {
-      $tag = $doc->getElementsByTagName($tag_name);
-      $this->assertEquals($length, $tag->length);
-    }
-  }
-
-  /**
-   * Test HTML document serialization.
-   *
-   * @dataProvider providerTestLoad
-   * @covers ::serialize
-   *
-   * @param string $html
-   *   Original HTML.
-   * @param array $tags
-   *   A list of tags to find. Key is tag, value is number instances.
-   * @param $expected
-   *   Expected serialized value.
-   */
-  public function testSerialize($html, $tags, $expected) {
-    $doc = Html::load($html);
-    $this->assertEquals($expected, Html::serialize($doc));
-  }
-
-  public function providerTestLoad() {
-    return array(
-      array('<a>', array('a' => 1), '<a></a>'),
-      array('<a href>', array('a' => 1), '<a href=""></a>'),
-      // Bad html
-      array('<div><something></something><something></something></some>', array('div' => 1, 'something' => 2), '<div><something></something><something></something></div>'),
-      array('<astring', array('astring' => 1), '<astring></astring>'),
-    );
-  }
-
-  /**
-   * Test HTML normalization.
-   *
-   * @dataProvider providerTestLoad
-   * @covers ::normalize
-   *
-   * @param string $html
-   *   Original HTML.
-   * @param array $tags
-   *   A list of tags to find. Key is tag, value is number instances.
-   * @param $expected
-   *   Expected normalized value.
-   */
-  public function testNormalize($html, $tags, $expected) {
-    $this->assertEquals($expected, Html::normalize($html));
-  }
-
-}