public void IsFieldModified_OptionObject_IsTrue() { // Arrange FieldObject fieldObject01 = new FieldObject("123", ""); FieldObject fieldObject02 = new FieldObject("124", ""); FieldObject fieldObject03 = new FieldObject("125", ""); RowObject rowObject01 = new RowObject("1||1", new List <FieldObject>() { fieldObject01, fieldObject02, fieldObject03 }); FormObject formObject = new FormObject("1", rowObject01); OptionObject optionObject = new OptionObject() { Forms = new List <FormObject>() { formObject } }; // Act optionObject.SetFieldValue("123", "MODIFIED"); // Assert Assert.IsTrue(optionObject.IsFieldModified("123")); }