diff -u b/core/modules/taxonomy/src/Tests/TermTest.php b/core/modules/taxonomy/src/Tests/TermTest.php
--- b/core/modules/taxonomy/src/Tests/TermTest.php
+++ b/core/modules/taxonomy/src/Tests/TermTest.php
@@ -466,7 +466,7 @@
   /**
    * Test taxonomy_term_load_multiple_by_name().
    */
-  function ptestTaxonomyGetTermByName() {
+  function testTaxonomyGetTermByName() {
     $term = $this->createTerm($this->vocabulary);
 
     // Load the term with the exact name.
diff -u b/core/modules/views/tests/src/Unit/Plugin/display/PathPluginBaseTest.php b/core/modules/views/tests/src/Unit/Plugin/display/PathPluginBaseTest.php
--- b/core/modules/views/tests/src/Unit/Plugin/display/PathPluginBaseTest.php
+++ b/core/modules/views/tests/src/Unit/Plugin/display/PathPluginBaseTest.php
@@ -496,8 +496,17 @@
 
 }
 
+/**
+ * A page controller for use by tests in this file.
+ */
 class TestController {
 
+  /**
+   * A page title callback.
+   *
+   * @return string
+   *   The page title.
+   */
   public function testTitle() {
     return 'Test title';
   }