diff --git a/core/modules/migrate/tests/src/Kernel/Plugin/MigrationProvidersExistTest.php b/core/modules/migrate/tests/src/Kernel/Plugin/MigrationProvidersExistTest.php
index 517299e..5357407 100644
--- a/core/modules/migrate/tests/src/Kernel/Plugin/MigrationProvidersExistTest.php
+++ b/core/modules/migrate/tests/src/Kernel/Plugin/MigrationProvidersExistTest.php
@@ -178,20 +178,22 @@ public function testFieldProvidersExist() {
    * @dataProvider fieldPluginDefinitionsProvider
    */
   public function testFieldProviderMissingRequiredProperty(array $definitions, $missing_property) {
-    $mock_discovery = $this->getMockBuilder(MigrateFieldPluginManager::class)
+    $discovery = $this->getMockBuilder(MigrateFieldPluginManager::class)
       ->disableOriginalConstructor()
       ->setMethods(['getDefinitions'])
       ->getMock();
-    $mock_discovery->method('getDefinitions')
+    $discovery->method('getDefinitions')
       ->willReturn($definitions);
-    $mock_plugin_manager = $this->getMockBuilder(MigrateFieldPluginManager::class)
+
+    $plugin_manager = $this->getMockBuilder(MigrateFieldPluginManager::class)
       ->disableOriginalConstructor()
       ->setMethods(['getDiscovery'])
       ->getMock();
-    $mock_plugin_manager->method('getDiscovery')
-      ->willReturn($mock_discovery);
+    $plugin_manager->method('getDiscovery')
+      ->willReturn($discovery);
+
     $this->setExpectedException(InvalidPluginDefinitionException::class, "The missing_{$missing_property} plugin should define the $missing_property property.");
-    $mock_plugin_manager->getDefinitions();
+    $plugin_manager->getDefinitions();
   }
 
   /**