/**
* Extended method via interface test.
* @return void
*/
public function testExtendedMethodViaInterface()
{
TestClass::extensionMethod('IFirst::joinI', 'IFirst_join');
TestClass::extensionMethod('ISecond::joinI', 'ISecond_join');
$obj = new TestClass('Hello', 'World');
$this->assertEquals("ISecond_join says Hello World", $obj->joinI(" "));
}
