public void BInstructionWithValidMembers_WhenCreateValidated_ReturnsTrue()
        {
            //Arrange: a instruction with all valid members is created.
            BInstruction instruction = new BInstruction {
                Description = "Description"
            };

            //Act: The instruction is checked if it is create valid.
            bool valid = instruction.CreateValid();

            //Assert: The instruction is valid for creation.
            Assert.AreEqual(true, valid);
        }
        public void BInstructionWithInvalidMembers_WhenCreateValidated_ReturnsFalse()
        {
            //Arrange: a instruction with all invalid members is created.
            BInstruction instruction = new BInstruction{
                Description =
                    "1234567890123456789012345678901234567890123456789012345678901234567890"
            };

            //Act: The instruction is checked if it is create valid.
            bool valid = instruction.CreateValid();

            //Assert: The instruction is not valid for creation.
            Assert.AreEqual(false, valid);
        }