Making subclassing of ErrorHandler much easier.

Test cases added.

Author: markstory

cake/libs/error.php

@@ -110,8 +110,11 @@ function __construct($method, $messages) {
 		}
 
 		if ($method !== 'error') {
-			if (Configure::read() == 0) {
-				$method = 'error404';
+			if (Configure::read('debug') == 0) {
+				$parentMethods = get_class_methods(get_parent_class($this));
+				if (in_array($method, $parentMethods)) {
+					$method = 'error404';
+				}
 				if (isset($code) && $code == 500) {
 					$method = 'error500';
 				}

cake/tests/cases/libs/error.test.php

@@ -207,6 +207,34 @@ class BlueberryController extends AppController {
 	var $components = array('Auth');
 }
 
+/**
+ * MyCustomErrorHandler class
+ *
+ * @package       cake
+ * @subpackage    cake.tests.cases.libs
+ */
+class MyCustomErrorHandler extends ErrorHandler {
+
+/**
+ * custom error message type.
+ *
+ * @return void
+ **/
+	function missingWidgetThing() {
+		echo 'widget thing is missing';
+	}
+
+/**
+ * stop method
+ *
+ * @access public
+ * @return void
+ */
+	function _stop() {
+		return;
+	}
+}
+
 /**
  * TestErrorHandler class
  *
@@ -244,6 +272,35 @@ function skip() {
 		$this->skipIf(PHP_SAPI === 'cli', '%s Cannot be run from console');
 	}
 
+/**
+ * test that methods declared in an ErrorHandler subclass are not converted
+ * into error404 when debug == 0
+ *
+ * @return void
+ **/
+	function testSubclassMethodsNotBeingConvertedToError() {
+		$back = Configure::read('debug');
+		Configure::write('debug', 2);
+		ob_start();
+		$ErrorHandler = new MyCustomErrorHandler('missingWidgetThing', array('message' => 'doh!'));
+		$result = ob_get_clean();
+		$this->assertEqual($result, 'widget thing is missing');
+
+		Configure::write('debug', 0);
+		ob_start();
+		$ErrorHandler = new MyCustomErrorHandler('missingWidgetThing', array('message' => 'doh!'));
+		$result = ob_get_clean();
+		$this->assertEqual($result, 'widget thing is missing', 'Method declared in subclass converted to error404. %s');
+		
+		Configure::write('debug', 0);
+		ob_start();
+		$ErrorHandler = new MyCustomErrorHandler('missingController', array('message' => 'Page not found'));
+		$result = ob_get_clean();
+		$this->assertPattern('/Not Found/', $result, 'Method declared in error handler not converted to error404. %s');
+
+		Configure::write('debug', $back);
+	}
+
 /**
  * testError method
  *