diff -u b/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php b/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php
--- b/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php
+++ b/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php
@@ -52,7 +52,7 @@
    */
   public function testGetName() {
     $name = $this->randomName();
-    $this->assertSame(spl_object_hash($this->language), spl_object_hash($this->language->setName($name)));
+    $this->assertSame($this->language, $this->language->setName($name));
     $this->assertSame($name, $this->language->getName());
   }
 
@@ -64,7 +64,7 @@
    */
   public function testGetLangcode() {
     $language_code = $this->randomName(2);
-    $this->assertSame(spl_object_hash($this->language), spl_object_hash($this->language->setId($language_code)));
+    $this->assertSame($this->language, $this->language->setId($language_code));
     $this->assertSame($language_code, $this->language->getId());
   }
 
@@ -76,7 +76,7 @@
    */
   public function testGetDirection() {
     $direction = LanguageInterface::DIRECTION_RTL;
-    $this->assertSame(spl_object_hash($this->language), spl_object_hash($this->language->setDirection($direction)));
+    $this->assertSame($this->language, $this->language->setDirection($direction));
     $this->assertSame($direction, $this->language->getDirection());
   }
 
@@ -88,7 +88,7 @@
    */
   public function testIsDefault() {
     $default = TRUE;
-    $this->assertSame(spl_object_hash($this->language), spl_object_hash($this->language->setDefault($default)));
+    $this->assertSame($this->language, $this->language->setDefault($default));
     $this->assertSame($default, $this->language->isDefault());
   }
 
@@ -100,7 +100,7 @@
    */
   public function testGetNegotiationMethodId() {
     $method_id = $this->randomName();
-    $this->assertSame(spl_object_hash($this->language), spl_object_hash($this->language->setNegotiationMethodId($method_id)));
+    $this->assertSame($this->language, $this->language->setNegotiationMethodId($method_id));
     $this->assertSame($method_id, $this->language->getNegotiationMethodId());
   }