gov.va.medora.mdo.dao.vista.VistaSocSecNum.isValid C# (CSharp) Method

        public static bool isValid(SocSecNum ssn)
        {
            if (ssn.IsValid)
            {
                return true;
            }
            if (!isValidAreaNumberException(ssn.AreaNumber))
            {
                return false;
            }
            if (ssn.IsValidGroupNumber && ssn.IsValidSerialNumber)
            {
                return true;
            }
            return false;
        }

 public void testIsValid()
 {
     Assert.IsTrue(VistaSocSecNum.isValid(new SocSecNum("555555555")));
     Assert.IsFalse(VistaSocSecNum.isValid(new TestSoc("819", "11", "abcd")));
     Assert.IsTrue(VistaSocSecNum.isValid(new TestSoc("819", "11", "7894")));
     Assert.AreEqual(true, VistaSocSecNum.isValid(new TestSoc("111", "11", "1111")));
     Assert.IsFalse(VistaSocSecNum.isValid(new TestSoc("abc", "11", "1111")));
     Assert.IsFalse(VistaSocSecNum.isValid(new TestSoc("11", "ab", "1111")));
     Assert.IsFalse(VistaSocSecNum.isValid(new TestSoc("111", "11", "abcd")));
     Assert.IsFalse(VistaSocSecNum.isValid(new TestSoc("111", "1", "1111")));
 }