diff --git a/core/lib/Drupal/Core/Path/Path.php b/core/lib/Drupal/Core/Path/Path.php
index 731daf0..92ad8c6 100644
--- a/core/lib/Drupal/Core/Path/Path.php
+++ b/core/lib/Drupal/Core/Path/Path.php
@@ -92,7 +92,7 @@ public function save($source, $alias, $langcode = Language::LANGCODE_NOT_SPECIFI
       $operation = 'update';
     }
     if ($pid) {
-      $this->moduleHandler->invokeAll('path_' . $operation, $fields);
+      $this->moduleHandler->invokeAll('path_' . $operation, array($fields));
       return $fields;
     }
     return FALSE;
@@ -136,7 +136,7 @@ public function delete($conditions) {
       $query->condition($field, $value);
     }
     $deleted = $query->execute();
-    $this->moduleHandler->invokeAll('path_delete', $path);
+    $this->moduleHandler->invokeAll('path_delete', array($path));
     return $deleted;
   }
 }
diff --git a/core/modules/system/lib/Drupal/system/Tests/Path/AliasTest.php b/core/modules/system/lib/Drupal/system/Tests/Path/AliasTest.php
index 18f13ba..95c9a30 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Path/AliasTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Path/AliasTest.php
@@ -105,6 +105,8 @@ function testLookupPath() {
       'langcode' => 'en',
     );
     $pathObject->save($path['source'], $path['alias'], $path['langcode']);
+    // Hook that clears cache is not executed with unit tests.
+    $aliasManager->cacheClear();
     $this->assertEqual($aliasManager->getPathAlias($path['source']), $path['alias'], 'English alias overrides language-neutral alias.');
     $this->assertEqual($aliasManager->getSystemPath($path['alias']), $path['source'], 'English source overrides language-neutral source.');
 
@@ -135,17 +137,23 @@ function testLookupPath() {
       'langcode' => 'en',
     );
     $pathObject->save($path['source'], $path['alias'], $path['langcode']);
+    // Hook that clears cache is not executed with unit tests.
+    $aliasManager->cacheClear();
     $this->assertEqual($aliasManager->getPathAlias($path['source']), $path['alias'], 'Recently created English alias returned.');
     $this->assertEqual($aliasManager->getSystemPath($path['alias']), $path['source'], 'Recently created English source returned.');
 
     // Remove the English aliases, which should cause a fallback to the most
     // recently created language-neutral alias, 'bar'.
     $pathObject->delete(array('langcode' => 'en'));
+    // Hook that clears cache is not executed with unit tests.
+    $aliasManager->cacheClear();
     $this->assertEqual($aliasManager->getPathAlias($path['source']), 'bar', 'Path lookup falls back to recently created language-neutral alias.');
 
     // Test the situation where the alias and language are the same, but
     // the source differs. The newer alias record should be returned.
     $pathObject->save('user/2', 'bar');
+    // Hook that clears cache is not executed with unit tests.
+    $aliasManager->cacheClear();
     $this->assertEqual($aliasManager->getSystemPath('bar'), 'user/2', 'Newer alias record is returned when comparing two Language::LANGCODE_NOT_SPECIFIED paths with the same alias.');
   }