commit 92c18d134ca5f6e14987b2f28ea00602555ca9f0
Author: Andy Postnikov <apostnikov@gmail.com>
Date:   Wed Mar 22 02:30:01 2017 +0200

    p61

diff --git a/core/modules/tracker/tests/src/Functional/TrackerNodeAccessTest.php b/core/modules/tracker/tests/src/Functional/TrackerNodeAccessTest.php
index 2b320ae..4dd32df 100644
--- a/core/modules/tracker/tests/src/Functional/TrackerNodeAccessTest.php
+++ b/core/modules/tracker/tests/src/Functional/TrackerNodeAccessTest.php
@@ -4,6 +4,7 @@
 
 use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
 use Drupal\comment\Tests\CommentTestTrait;
+use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\node\Entity\NodeType;
 use Drupal\Tests\BrowserTestBase;
 
@@ -61,6 +62,8 @@ public function testTrackerNodeAccess() {
     $this->drupalGet('user/' . $access_user->id() . '/activity');
     $this->assertText($private_node->getTitle(), 'Private node is visible to user with private access.');
     $this->assertText($public_node->getTitle(), 'Public node is visible to user with private access.');
+    // Comments column displayed.
+    $this->assertSession()->pageTextContains('Comments');
 
     // User without access should not see private node.
     $this->drupalLogin($no_access_user);
@@ -70,6 +73,23 @@ public function testTrackerNodeAccess() {
     $this->drupalGet('user/' . $access_user->id() . '/activity');
     $this->assertNoText($private_node->getTitle(), 'Private node is not visible to user without private access.');
     $this->assertText($public_node->getTitle(), 'Public node is visible to user without private access.');
+
+    // Ensure module pages works when comment module uninstalled.
+    $field = FieldStorageConfig::loadByName('node', 'comment');
+    $field->delete();
+    field_purge_batch(10);
+    /** @var \Drupal\Core\Extension\ModuleInstallerInterface $service */
+    $service = \Drupal::service('module_installer');
+    $service->uninstall(['comment']);
+    $this->drupalLogin($access_user);
+    $this->drupalGet('activity');
+    $this->assertSession()->pageTextContains($private_node->getTitle());
+    // Comments column hidden.
+    $this->assertSession()->pageTextNotContains('Comments');
+    $this->drupalGet('user/' . $access_user->id() . '/activity');
+    $this->assertSession()->pageTextContains($private_node->getTitle());
+    // Comments column hidden.
+    $this->assertSession()->pageTextNotContains('Comments');
   }
 
 }