Issue #2262483 follow-up by sun: Fixed Some PHPUnit tests do not exist.

core/modules/system/src/Tests/System/IgnoreReplicaSubscriberTest.php

@@ -17,7 +17,7 @@
 /**
  * Tests the event subscriber that disables the replica database.
  */
-class IgnoreSecondarySubscriberTest extends UnitTestBase {
+class IgnoreReplicaSubscriberTest extends UnitTestBase {
 
   public static function getInfo() {
     return array(

core/tests/Drupal/Tests/Core/Cache/CacheContextsTest.php

@@ -11,27 +11,6 @@
 use Drupal\Core\Cache\CacheContextInterface;
 use Drupal\Tests\UnitTestCase;
 
-/**
- * Fake cache context class.
- */
-class FooCacheContext implements CacheContextInterface {
-
-  /**
-   * {@inheritdoc}
-   */
-  public static function getLabel() {
-    return 'Foo';
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getContext() {
-    return 'bar';
-  }
-
-}
-
 /**
  * Tests the CacheContexts service.
  *
@@ -95,3 +74,25 @@ protected function getMockContainer() {
                 ->getMock();
   }
 }
+
+/**
+ * Fake cache context class.
+ */
+class FooCacheContext implements CacheContextInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getLabel() {
+    return 'Foo';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getContext() {
+    return 'bar';
+  }
+
+}
+