diff --git a/core/modules/rdf/src/Tests/Field/FieldRdfaTestBase.php b/core/modules/rdf/src/Tests/Field/FieldRdfaTestBase.php
index 9a26aca..8e4b50e 100644
--- a/core/modules/rdf/src/Tests/Field/FieldRdfaTestBase.php
+++ b/core/modules/rdf/src/Tests/Field/FieldRdfaTestBase.php
@@ -105,7 +105,7 @@ protected function assertFormatterRdfa($formatter, $property, $expected_rdf_valu
   /**
    * Creates the field for testing.
    */
-  protected function createTestField() {
+  protected function createTestField($field_settings = array()) {
     entity_create('field_storage_config', array(
       'name' => $this->fieldName,
       'entity_type' => 'entity_test',
@@ -115,6 +115,7 @@ protected function createTestField() {
       'entity_type' => 'entity_test',
       'field_name' => $this->fieldName,
       'bundle' => 'entity_test',
+      'settings' => $field_settings,
     ))->save();
   }
 
diff --git a/core/modules/rdf/src/Tests/Field/NumberFieldRdfaTest.php b/core/modules/rdf/src/Tests/Field/NumberFieldRdfaTest.php
index 434d634..f38a106 100644
--- a/core/modules/rdf/src/Tests/Field/NumberFieldRdfaTest.php
+++ b/core/modules/rdf/src/Tests/Field/NumberFieldRdfaTest.php
@@ -92,10 +92,6 @@ protected function createMapping($field_settings = array()) {
       'properties' => array('schema:baseSalary'),
     ))->save();
 
-    $mapping->setFieldMapping('field_with_separator', array(
-      'properties' => array('schema:baseSalary'),
-    ))->save();
-
     // Set up test entity.
     $this->entity = entity_create('entity_test', array());
     $this->entity->{$this->fieldName}->value = $this->testValue;
@@ -103,22 +99,18 @@ protected function createMapping($field_settings = array()) {
 
   /**
    * Creates the field for testing.
-   *
-   * @param array
-   *   The field settings.
    */
-  protected function createTestField($settings) {
-    parent::createTestField();
+  protected function createTestField($field_settings = array()) {
     entity_create('field_storage_config', array(
-      'name' => 'field_with_separator',
+      'name' => $this->fieldName,
       'entity_type' => 'entity_test',
-      'type' => 'decimal',
+      'type' => $this->fieldType,
     ))->save();
     entity_create('field_instance_config', array(
       'entity_type' => 'entity_test',
-      'field_name' => 'field_with_separator',
+      'field_name' => $this->fieldName,
       'bundle' => 'entity_test',
-      'settings' => $settings,
+      'settings' => $field_settings,
     ))->save();
   }
 }