Classes/RestrictedExtendClasses: improve the tests

Add tests with:
* Variations of namespaced class names.
* Anonymous classes extending.
* Group exclusion, as supported via the extended abstract.

Author: jrfnl

WordPressVIPMinimum/Tests/Classes/RestrictedExtendClassesUnitTest.inc

@@ -2,11 +2,21 @@
 
 class OkTestClass extends WPCOM_VIP_CLI_Command { } // Ok - correct class.
 class  AnotherOkTestClass  extends   WPC__CLI_Command { } // Ok - spacing + similar class.
-class Ok_TestClass extends wpcom_vip_cli_command { } // Ok - lowercase correct class.
-class Ok_Test_Class extends WpCoM_VIP_cli_command { } // Ok - mixed case correct class.
+class Ok_TestClass extends \wpcom_vip_cli_command { } // Ok - lowercase correct class.
+$ok = new class extends WpCoM_VIP_cli_command { }; // Ok - mixed case correct class.
 class WP_CLI_Command { } // Ok - not extending.
 
 class BadTestClass extends WP_CLI_Command { } // Warning - wrong class.
-class AnotherBadTestClass extends wp_CLI_comMand { } // Warning - mixed case wrong class.
-class AnotherBad_TestClass   extends   WP_CLI_comMand { } // Warning - spacing + mixed case wrong class.
+class AnotherBadTestClass extends \wp_CLI_comMand { } // Warning - mixed case wrong class.
+$bad = new class()   extends   WP_CLI_comMand { }; // Warning - spacing + mixed case wrong class.
 class Bad_Test_Class extends wp_cli_command { } // Warning - lowercase wrong class.
+
+// phpcs:set WordPressVIPMinimum.Classes.RestrictedExtendClasses exclude[] wp_cli
+class IgnoredClass extends WP_CLI_Command { } // OK, group is excluded.
+
+// Reset to the default value.
+// phpcs:set WordPressVIPMinimum.Classes.RestrictedExtendClasses exclude[]
+
+class Ok_NotTheTargetFQN extends \Fully\Qualified\WP_CLI_Command { } // Ok - not the right namespace.
+class Ok_NotTheTargetPQN extends Partially\Qualified\WP_CLI_Command { } // Ok - not the right namespace.
+class Bad_NamespaceRelative extends namespace\WP_CLI_Command { } // Warning - this is not a namespaced file, so "namespace" resolves to the global namespace.

WordPressVIPMinimum/Tests/Classes/RestrictedExtendClassesUnitTest.php

@@ -36,6 +36,7 @@ public function getWarningList() {
 			10 => 1,
 			11 => 1,
 			12 => 1,
+			22 => 1,
 		];
 	}
 }