getInterfaceMethods() public method

Gets the list of methods for the implemented interfaces only.
public getInterfaceMethods ( )
 function testCanSeparateInterfaceMethodsFromOthers()
 {
     $reflection = new SimpleReflection('AnyOldImplementation');
     $this->assertIdentical($reflection->getMethods(), array('aMethod', 'extraMethod'));
     $this->assertIdentical($reflection->getInterfaceMethods(), array('aMethod'));
 }