public function testAttributeMinimization() {
		$attributes = array('selected' => 1);
		$expected = ' selected="selected"';
		$result = $this->helper->testAttributes($attributes);
		$this->assertEqual($expected, $result);

		$attributes = array('selected' => true);
		$expected = ' selected="selected"';
		$result = $this->helper->testAttributes($attributes);
		$this->assertEqual($expected, $result);

		$attributes = array('selected' => 'true');
		$expected = ' selected="true"';
		$result = $this->helper->testAttributes($attributes);
		$this->assertEqual($expected, $result);
	}