public void IntIDToStringTest()
        {
            var intStronglyTypedID = new IntStronglyTypedID();

            intStronglyTypedID.ToString().Should().MatchRegex("^\\d+$");
        }
 public IntStronglyTypedIDSerializationTestData(IntStronglyTypedID instanceTestData, string serializedTestData)
 {
     InstanceTestData   = instanceTestData;
     SerializedTestData = serializedTestData ?? throw new ArgumentNullException(nameof(serializedTestData));
 }
 public IntIdTestData(IntStronglyTypedID intId, string serializedIntId)
 {
     IntId           = intId;
     SerializedIntId = serializedIntId ?? throw new ArgumentNullException(nameof(serializedIntId));
 }