prevent invalid config

if a method is configured to be callable that isn't callable - bark on
construction

Cake/ORM/Behavior.php

@@ -14,6 +14,7 @@
  */
 namespace Cake\ORM;
 
+use Cake\Error\Exception;
 use Cake\Event\EventListener;
 
 /**
@@ -131,6 +132,7 @@ class Behavior implements EventListener {
  */
 	public function __construct(Table $table, array $settings = []) {
 		$this->_settings = $settings + $this->_defaultSettings;
+		$this->verifySettings();
 	}
 
 /**
@@ -142,6 +144,29 @@ public function settings() {
 		return $this->_settings;
 	}
 
+/**
+ * verifySettings
+ *
+ * Check that implemented* keys contain values pointing at callable
+ *
+ * @return void
+ * @throws Cake\Error\Exception if settings are invalid
+ */
+	public function verifySettings() {
+		$keys = ['implementedFinders', 'implementedMethods'];
+		foreach ($keys as $key) {
+			if (!isset($this->_settings[$key])) {
+				continue;
+			}
+
+			foreach ($this->_settings[$key] as $method) {
+				if (!is_callable([$this, $method])) {
+					throw new Exception(__d('cake_dev', 'The method %s is not callable on class %s', $method, get_class($this)));
+				}
+			}
+		}
+	}
+
 /**
  * Get the Model callbacks this behavior is interested in.
  *

Cake/Test/TestCase/ORM/BehaviorTest.php

@@ -151,6 +151,23 @@ public function testImplementedMethodsDisabled() {
 		$this->assertEquals($expected, $behavior->implementedMethods());
 	}
 
+/**
+ * testImplementedMethodsInvalid
+ *
+ * @expectedException Cake\Error\Exception
+ * @expectedExceptionMessage The method iDoNotExist is not callable on class Cake\Test\TestCase\ORM\Test2Behavior
+ *
+ * @return void
+ */
+	public function testImplementedMethodsInvalid() {
+		$table = $this->getMock('Cake\ORM\Table');
+		$behavior = new Test2Behavior($table, [
+			'implementedMethods' => [
+				'aliased' => 'iDoNotExist'
+			]
+		]);
+	}
+
 /**
  * testImplementedFinders
  *
@@ -197,4 +214,20 @@ public function testImplementedFindersDisabled() {
 		$this->assertEquals($expected, $behavior->implementedFinders());
 	}
 
+/**
+ * testImplementedFinderInvalid
+ *
+ * @expectedException Cake\Error\Exception
+ * @expectedExceptionMessage The method findNotDefined is not callable on class Cake\Test\TestCase\ORM\Test2Behavior
+ *
+ * @return void
+ */
+	public function testImplementedFinderInvalid() {
+		$table = $this->getMock('Cake\ORM\Table');
+		$behavior = new Test2Behavior($table, [
+			'implementedFinders' => [
+				'aliased' => 'findNotDefined'
+			]
+		]);
+	}
 }