Source

						public function testAliasesAsymmetry() {
		$filters = Message::aliases();
		$t = $filters['t'];
		$tn = $filters['tn'];

		$expected = Message::translate('house', array('locale' => 'de'));
		$result = $t('house', array('locale' => 'de'));
		$this->assertNotEqual($expected, $result);

		$expected = Message::translate('house', array('locale' => 'de', 'count' => 3));
		$result = $tn('house', 'houses', array('locale' => 'de'));
		$this->assertNotEqual($expected, $result);
	}