Adding Model::hasMethod() and tests.

cake/libs/model/model.php

@@ -1066,6 +1066,23 @@ class Model extends Object {
 		return false;
 	}
 
+/**
+ * Check that a method is callable on a model.  This will check both the model's own methods, its 
+ * inherited methods and methods that could be callable through behaviors.
+ *
+ * @param string $method The method to be called.
+ * @return boolean True on method being callable.
+ */
+	public function hasMethod($method) {
+		if (method_exists($this, $method)) {
+			return true;
+		}
+		if ($this->Behaviors->hasMethod($method)) {
+			return true;
+		}
+		return false;
+	}
+
 /**
  * Returns true if the supplied field is a model Virtual Field
  *

cake/tests/cases/libs/model/model_integration.test.php

@@ -2008,4 +2008,27 @@ class ModelIntegrationTest extends BaseModelTest {
 		$expected = $db->name('Domain.DomainHandle');
 		$this->assertEqual($result, $expected);
 	}
+
+/**
+ * test that model->hasMethod checks self and behaviors.
+ *
+ * @return void
+ */
+	function testHasMethod() {
+		$Article = new Article();
+		$Article->Behaviors = $this->getMock('BehaviorCollection');
+
+		$Article->Behaviors->expects($this->at(0))
+			->method('hasMethod')
+			->will($this->returnValue(true));
+
+		$Article->Behaviors->expects($this->at(1))
+			->method('hasMethod')
+			->will($this->returnValue(false));
+
+		$this->assertTrue($Article->hasMethod('find'));
+
+		$this->assertTrue($Article->hasMethod('pass'));
+		$this->assertFalse($Article->hasMethod('fail'));
+	}
 }