public void SubField_Constructor_1()
{
SubField subField = new SubField();
Assert.AreEqual(SubField.NoCode, subField.Code);
Assert.AreEqual(SubField.NoCodeString, subField.CodeString);
Assert.AreEqual(null, subField.Value);
Assert.AreEqual("^\0", subField.ToString());
subField = new SubField('A', "The value");
Assert.AreEqual('A', subField.Code);
Assert.AreEqual("A", subField.CodeString);
Assert.AreEqual("The value", subField.Value);
Assert.AreEqual("^aThe value", subField.ToString());
SubField clone = subField.Clone();
Assert.AreEqual(subField.Code, clone.Code);
Assert.AreEqual(subField.CodeString, clone.CodeString);
Assert.AreEqual(subField.Value, clone.Value);
Assert.AreEqual("^aThe value", clone.ToString());
Assert.AreEqual(0, SubField.Compare(subField, clone));
subField.SetValue("New value");
Assert.AreEqual("New value", subField.Value);
subField.SetValue(null);
Assert.AreEqual(null, subField.Value);
}