only in patch2:
unchanged:
--- a/core/modules/migrate/tests/src/Unit/MigrateSqlSourceTestCase.php
+++ b/core/modules/migrate/tests/src/Unit/MigrateSqlSourceTestCase.php
@@ -122,6 +122,13 @@ public function testSourceCount() {
   }
 
   /**
+   * Test the source defines a valid ID.
+   */
+  public function testSourceId() {
+    $this->assertNotEmpty($this->source->getIds());
+  }
+
+  /**
    * @param \Drupal\migrate\Row $row
    * @param string $key
    * @return mixed
only in patch2:
unchanged:
--- a/core/modules/migrate/tests/src/Unit/destination/ConfigTest.php
+++ b/core/modules/migrate/tests/src/Unit/destination/ConfigTest.php
@@ -37,6 +37,9 @@ public function testImport() {
     }
     $config->expects($this->once())
       ->method('save');
+    $config->expects($this->once())
+      ->method('getName')
+      ->willReturn('d8_config');
     $config_factory = $this->getMock('Drupal\Core\Config\ConfigFactoryInterface');
     $config_factory->expects($this->once())
       ->method('getEditable')
@@ -49,7 +52,8 @@ public function testImport() {
       ->method('getRawDestination')
       ->will($this->returnValue($source));
     $destination = new Config(array('config_name' => 'd8_config'), 'd8_config', array('pluginId' => 'd8_config'), $migration, $config_factory);
-    $destination->import($row);
+    $destination_id = $destination->import($row);
+    $this->assertEquals($destination_id, ['d8_config']);
   }
 
 }
only in patch2:
unchanged:
--- a/core/modules/migrate_drupal/tests/src/Unit/source/VariableTest.php
+++ b/core/modules/migrate_drupal/tests/src/Unit/source/VariableTest.php
@@ -32,6 +32,7 @@ class VariableTest extends MigrateSqlSourceTestCase {
 
   protected $expectedResults = array(
     array(
+      'id' => 'foo',
       'foo' => 1,
       'bar' => FALSE,
     ),