public void MarcRecordUtility_AddNonEmptyField_4()
        {
            MarcRecord record = new MarcRecord();
            MarcRecord result = record.AddNonEmptyField(701, null);

            Assert.AreSame(record, result);
            Assert.AreEqual(0, record.Fields.Count);
        }
        public void MarcRecordUtility_AddNonEmptyField_2()
        {
            MarcRecord record = new MarcRecord();
            MarcRecord result = record.AddNonEmptyField(701, "^aСидоров^bС. С.");

            Assert.AreSame(record, result);
            Assert.AreEqual(1, record.Fields.Count);
        }