/** * test the ssn method of UsValidation * * @return void */ public function testSsn() { $this->assertFalse(UsValidation::ssn('11-33-4333')); $this->assertFalse(UsValidation::ssn('113-3-4333')); $this->assertFalse(UsValidation::ssn('111-33-333')); $this->assertTrue(UsValidation::ssn('111-33-4333')); }