diff --git a/core/modules/content_translation/src/Tests/ContentTranslationUITestBase.php b/core/modules/content_translation/src/Tests/ContentTranslationUITestBase.php
index e524359..4974edb 100644
--- a/core/modules/content_translation/src/Tests/ContentTranslationUITestBase.php
+++ b/core/modules/content_translation/src/Tests/ContentTranslationUITestBase.php
@@ -13,12 +13,15 @@
 use Drupal\Core\Url;
 use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\Component\Utility\SafeMarkup;
+use Drupal\system\Tests\Cache\AssertPageCacheContextsAndTagsTrait;
 
 /**
  * Tests the Content Translation UI.
  */
 abstract class ContentTranslationUITestBase extends ContentTranslationTestBase {
 
+  use AssertPageCacheContextsAndTagsTrait;
+
   /**
    * The id of the entity being translated.
    *
@@ -87,9 +90,14 @@ protected function doTestBasicTranslation() {
     ], array('language' => $language));
     $this->drupalPostForm($add_url, $this->getEditValues($values, $langcode), $this->getFormSubmitActionForNewTranslation($entity, $langcode));
 
-    // Get the entity and reset its cache, so that the new translation gets the
+    // Ensure that the content languge cache context is not yet added to the
+    // page.
+    $entity = entity_load($this->entityTypeId, $this->entityId, TRUE);
+    $this->drupalGet($entity->urlInfo());
+    $this->assertCacheContexts(['languages:language_interface', 'theme' , 'user.permissions']);
+
+    // Reset the cache of the entity, so that the new translation gets the
     // updated values.
-    $entity = entity_load($this->entityTypeId, $this->entityId, TRUE);
     $metadata_source_translation = $this->manager->getTranslationMetadata($entity->getTranslation($default_langcode));
     $metadata_target_translation = $this->manager->getTranslationMetadata($entity->getTranslation($langcode));
 
@@ -148,6 +156,12 @@ protected function doTestBasicTranslation() {
     ], array('language' => $language));
     $this->drupalPostForm($add_url, $edit, $this->getFormSubmitActionForNewTranslation($entity, $langcode));
     $entity = entity_load($this->entityTypeId, $this->entityId, TRUE);
+    $this->drupalGet($entity->urlInfo());
+
+    // Ensure that the language content cache context has been added as there
+    // are translations.
+    $this->assertCacheContexts(['languages:language_content', 'languages:language_interface', 'theme' , 'user.permissions']);
+
     $this->drupalGet($entity->urlInfo('drupal:content-translation-overview'));
     $this->assertText('Source language', 'Source language column correctly shown.');