diff -u b/core/modules/field/tests/src/FunctionalJavascript/FormJSAddMoreTest.php b/core/modules/field/tests/src/FunctionalJavascript/FormJSAddMoreTest.php
--- b/core/modules/field/tests/src/FunctionalJavascript/FormJSAddMoreTest.php
+++ b/core/modules/field/tests/src/FunctionalJavascript/FormJSAddMoreTest.php
@@ -14,6 +14,7 @@
  * @group field
  */
 class FormJSAddMoreTest extends JavascriptTestBase {
+
   /**
    * {@inheritdoc}
    */
@@ -75,7 +76,7 @@
     $this->assertNotEmpty($field_1, 'Successfully added another item.');
 
     // Validate the value of the first field has not changed.
-    $this->assertEquals($field_0->getValue(), '1', 'Value for the first item has not changed.');
+    $this->assertEquals('1', $field_0->getValue(), 'Value for the first item has not changed.');
 
     // Validate the value of the second item is empty.
     $this->assertEmpty($field_1->getValue(), 'Value for the second item is currently empty.');