diff --git a/core/modules/field/lib/Drupal/field/Tests/Number/NumberFieldTest.php b/core/modules/field/lib/Drupal/field/Tests/Number/NumberFieldTest.php
index 569ea05..6f429cf 100644
--- a/core/modules/field/lib/Drupal/field/Tests/Number/NumberFieldTest.php
+++ b/core/modules/field/lib/Drupal/field/Tests/Number/NumberFieldTest.php
@@ -161,6 +161,14 @@ function testNumberIntegerField() {
       'type' => 'integer',
     ))->save();
 
+    // Create unbounded field without limits.
+    $field_name_unlimited = drupal_strtolower($this->randomName());
+    entity_create('field_config', array(
+      'name' => $field_name_unlimited,
+      'entity_type' => 'entity_test',
+      'type' => 'integer',
+    ))->save();
+
     entity_create('field_instance_config', array(
       'field_name' => $field_name,
       'entity_type' => 'entity_test',
@@ -170,6 +178,13 @@ function testNumberIntegerField() {
       )
     ))->save();
 
+    entity_create('field_instance_config', array(
+      'field_name' => $field_name_unlimited,
+      'entity_type' => 'entity_test',
+      'bundle' => 'entity_test',
+      'settings' => array()
+    ))->save();
+
     entity_get_form_display('entity_test', 'entity_test', 'default')
       ->setComponent($field_name, array(
         'type' => 'number',
@@ -177,11 +192,20 @@ function testNumberIntegerField() {
           'placeholder' => '4'
         ),
       ))
+      ->setComponent($field_name_unlimited, array(
+        'type' => 'number',
+        'settings' => array(
+          'placeholder' => '4'
+        ),
+      ))
       ->save();
     entity_get_display('entity_test', 'entity_test', 'default')
       ->setComponent($field_name, array(
         'type' => 'number_integer',
       ))
+      ->setComponent($field_name_unlimited, array(
+        'type' => 'number_integer',
+      ))
       ->save();
 
     // Display creation form.
@@ -251,11 +275,32 @@ function testNumberIntegerField() {
       $this->assertText(t('entity_test @id has been created.', array('@id' => $id)), 'Entity was created');
       $this->assertRaw($valid_entry, 'Value is displayed.');
     }
+
+    // Create a node and test that integer sizes are correctly validated.
+    // Integer too big.
+    $this->drupalGet('entity_test/add');
+    $edit = array(
+      'user_id' => 1,
+      'name' => $this->randomName(),
+      "{$field_name_unlimited}[0][value]" => NUMBER_MAX_INT + 1,
+    );
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    $this->assertText('the value may be no greater than', 'Found too big integer.');
+
+    // Integer too small.
+    $this->drupalGet('entity_test/add');
+    $edit = array(
+      'user_id' => 1,
+      'name' => $this->randomName(),
+      "{$field_name_unlimited}[0][value]" => NUMBER_MIN_INT - 1,
+    );
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    $this->assertText('the value may be no less than', 'Found too small integer.');
   }
 
   /**
-  * Test float field.
-  */
+   * Test float field.
+   */
   function testNumberFloatField() {
     // Create a field with settings to validate.
     $field_name = drupal_strtolower($this->randomName());