Version 1

[yaffs-website] / web / core / tests / Drupal / Tests / Core / Common / TagsTest.php

diff --git a/web/core/tests/Drupal/Tests/Core/Common/TagsTest.php b/web/core/tests/Drupal/Tests/Core/Common/TagsTest.php
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+++ b/web/core/tests/Drupal/Tests/Core/Common/TagsTest.php
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+<?php
+
+namespace Drupal\Tests\Core\Common;
+
+use Drupal\Component\Utility\Tags;
+use Drupal\Tests\UnitTestCase;
+
+/**
+ * Tests explosion and implosion of autocomplete tags.
+ *
+ * @group Common
+ */
+class TagsTest extends UnitTestCase {
+
+  protected $validTags = [
+    'Drupal' => 'Drupal',
+    'Drupal with some spaces' => 'Drupal with some spaces',
+    '"Legendary Drupal mascot of doom: ""Druplicon"""' => 'Legendary Drupal mascot of doom: "Druplicon"',
+    '"Drupal, although it rhymes with sloopal, is as awesome as a troopal!"' => 'Drupal, although it rhymes with sloopal, is as awesome as a troopal!',
+  ];
+
+  /**
+   * Explodes a series of tags.
+   */
+  public function explodeTags() {
+    $string = implode(', ', array_keys($this->validTags));
+    $tags = Tags::explode($string);
+    $this->assertTags($tags);
+  }
+
+  /**
+   * Implodes a series of tags.
+   */
+  public function testImplodeTags() {
+    $tags = array_values($this->validTags);
+    // Let's explode and implode to our heart's content.
+    for ($i = 0; $i < 10; $i++) {
+      $string = Tags::implode($tags);
+      $tags = Tags::explode($string);
+    }
+    $this->assertTags($tags);
+  }
+
+  /**
+   * Helper function: asserts that the ending array of tags is what we wanted.
+   */
+  protected function assertTags($tags) {
+    $original = $this->validTags;
+    foreach ($tags as $tag) {
+      $key = array_search($tag, $original);
+      $this->assertTrue((bool) $key, $tag, sprintf('Make sure tag %s shows up in the final tags array (originally %s)', $tag, $key));
+      unset($original[$key]);
+    }
+    foreach ($original as $leftover) {
+      $this->fail(sprintf('Leftover tag %s was left over.', $leftover));
+    }
+  }
+
+}