diff --git a/core/modules/field/src/Tests/Number/NumberFieldTest.php b/core/modules/field/src/Tests/Number/NumberFieldTest.php
index 54fed49..90706f3 100644
--- a/core/modules/field/src/Tests/Number/NumberFieldTest.php
+++ b/core/modules/field/src/Tests/Number/NumberFieldTest.php
@@ -464,24 +464,24 @@ function testNumberFormatter() {
    */
   function testCreateNumberFloatField() {
     // Create a float field.
-    $field_type = 'float';
     $field_name = Unicode::strtolower($this->randomMachineName());
     entity_create('field_storage_config', array(
       'field_name' => $field_name,
       'entity_type' => 'entity_test',
-      'type' => $field_type,
+      'type' => 'float',
     ))->save();
 
-    entity_create('field_config', array(
+    $field = entity_create('field_config', array(
       'field_name' => $field_name,
       'entity_type' => 'entity_test',
       'bundle' => 'entity_test',
-    ))->save();
+    ));
+    $field->save();
 
-    // Set the minimum value to an decimal value.
-    $this->setMinimumValue($field_type, $field_name, 0.1);
+    // Set the minimum value to a float value.
+    $this->assertSetMinimumValue($field, 0.0001);
     // Set the minimum value to an integer value.
-    $this->setMinimumValue($field_type, $field_name, 1);
+    $this->assertSetMinimumValue($field, 1);
   }
 
   /**
@@ -489,31 +489,31 @@ function testCreateNumberFloatField() {
    */
   function testCreateNumberDecimalField() {
     // Create a decimal field.
-    $field_type = 'decimal';
     $field_name = Unicode::strtolower($this->randomMachineName());
     entity_create('field_storage_config', array(
       'field_name' => $field_name,
       'entity_type' => 'entity_test',
-      'type' => $field_type,
+      'type' => 'decimal',
     ))->save();
 
-    entity_create('field_config', array(
+    $field = entity_create('field_config', array(
       'field_name' => $field_name,
       'entity_type' => 'entity_test',
       'bundle' => 'entity_test',
-    ))->save();
+    ));
+    $field->save();
 
-    // Set the minimum value to an decimal value.
-    $this->setMinimumValue($field_type, $field_name, 0.1);
+    // Set the minimum value to a decimal value.
+    $this->assertSetMinimumValue($field, 0.1);
     // Set the minimum value to an integer value.
-    $this->setMinimumValue($field_type, $field_name, 1);
+    $this->assertSetMinimumValue($field, 1);
   }
 
   /**
    * Helper function to set the minimum value of a field.
    */
-  function setMinimumValue($field_type, $field_name, $minimum_value) {
-    $field_configuration_url = 'entity_test/structure/entity_test/fields/entity_test.entity_test.' . $field_name;
+  function assertSetMinimumValue($field, $minimum_value) {
+    $field_configuration_url = 'entity_test/structure/entity_test/fields/entity_test.entity_test.' . $field->getName();
 
     // Set the minimum value.
     $edit = array(
@@ -521,9 +521,11 @@ function setMinimumValue($field_type, $field_name, $minimum_value) {
     );
     $this->drupalPostForm($field_configuration_url, $edit, t('Save settings'));
     // Check if an error message is shown.
-    $this->assertNoRaw(t('%name is not a valid number.', array('%name' => t('Minimum'))), 'Saved ' . gettype($minimum_value) .'  value as minimal value on a ' . $field_type . ' field');
+    $this->assertNoRaw(t('%name is not a valid number.', array('%name' => t('Minimum'))), 'Saved ' . gettype($minimum_value) .'  value as minimal value on a ' . $field->getType() . ' field');
+    // Check if a success message is shown.
+    $this->assertRaw(t('Saved %label configuration.', array('%label' => $field->getLabel())));
     // Check if the minimum value was actually set.
     $this->drupalGet($field_configuration_url);
-    $this->assertFieldById('edit-field-settings-min', $minimum_value, 'Minimal ' . gettype($minimum_value) .'  value was set on a ' . $field_type . ' field.');
+    $this->assertFieldById('edit-field-settings-min', $minimum_value, 'Minimal ' . gettype($minimum_value) .'  value was set on a ' . $field->getType() . ' field.');
   }
 }