public void RecordFieldUtility_GetFirstSubField_1()
{
RecordField field = _GetField();
SubField subField = RecordFieldUtility.GetFirstSubField(field, 'a');
Assert.IsNotNull(subField);
subField = RecordFieldUtility.GetFirstSubField(field, 'b');
Assert.IsNotNull(subField);
subField = RecordFieldUtility.GetFirstSubField(field, 'x');
Assert.IsNull(subField);
}