Issue #2425535 by lucaslg, balagan, tim.plunkett, lucaschain, nicoloye, pjonckiere, akalata, mondrake: No pager shows on taxonomy overview pages

core/modules/taxonomy/src/Form/OverviewTerms.php

@@ -358,6 +358,7 @@ class OverviewTerms extends FormBase {
       );
     }
 
+    $form['pager_pager'] = ['#type' => 'pager'];
     return $form;
   }
 

core/modules/taxonomy/src/Tests/TaxonomyTermPagerTest.php

@@ -0,0 +1,72 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\taxonomy\Tests\TaxonomyTermPagerTest.
+ */
+
+namespace Drupal\taxonomy\Tests;
+
+/**
+ * Ensures that the term pager works properly.
+ *
+ * @group taxonomy
+ */
+class TaxonomyTermPagerTest extends TaxonomyTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['taxonomy'];
+
+  /**
+   * Vocabulary for testing.
+   *
+   * @var \Drupal\taxonomy\VocabularyInterface
+   */
+  protected $vocabulary;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+    $this->drupalLogin($this->drupalCreateUser(['administer taxonomy', 'bypass node access']));
+    $this->vocabulary = $this->createVocabulary();
+  }
+
+  /**
+   * Tests that the pager is displayed properly on the term overview page.
+   */
+  public function testTaxonomyTermOverviewPager() {
+    // Set limit to 3 terms per page.
+    $this->config('taxonomy.settings')
+      ->set('terms_per_page_admin', '3')
+      ->save();
+
+    // Create 3 terms.
+    for ($x = 1; $x <= 3; $x++) {
+      $this->createTerm($this->vocabulary);
+    }
+
+    // Get Page 1.
+    $this->drupalGet('admin/structure/taxonomy/manage/' . $this->vocabulary->id() . '/overview');
+    $this->assertNoPattern('|<nav class="pager" [^>]*>|', 'Pager is not visible on page 1');
+
+    // Create 3 more terms to show pager.
+    for ($x = 1; $x <= 3; $x++) {
+      $this->createTerm($this->vocabulary);
+    }
+
+    // Get Page 1.
+    $this->drupalGet('admin/structure/taxonomy/manage/' . $this->vocabulary->id() . '/overview');
+    $this->assertPattern('|<nav class="pager" [^>]*>|', 'Pager is visible on page 1');
+
+    // Get Page 2.
+    $this->drupalGet('admin/structure/taxonomy/manage/' . $this->vocabulary->id() . '/overview', ['query' => ['page' => 1]]);
+    $this->assertPattern('|<nav class="pager" [^>]*>|', 'Pager is visible on page 2');
+  }
+
+}