DP44/Common/DTS.Common.Tests/ChannelTypeUtilityShould.cs

using DTS.Common.Classes.Sensors;
using NUnit.Framework;
using System;
using System.Collections.Generic;
using System.Linq;

namespace DTS.Common.Tests
{
    public class ChannelTypeUtilityShould
    {
        public static Array GetKnownChannelTypes()
        {
            var testValuesFromEnum = new List<string>();
            var values = Enum.GetValues(typeof(KnownChannelTypes)).Cast<KnownChannelTypes>().Select(x => x.ToString()).ToArray();
            foreach (var value in values)
            {
                testValuesFromEnum.Add($"{value}087155.1");
            }
            return testValuesFromEnum.ToArray();
        }

        [Test]
        public void ParseSensorKnownChannelType_ShouldRetuenEmpty_WhenPassedNull()
        {
            //Arrange
            //Act
            var res = ChannelTypeUtility.ParseSensorKnownChannelType(null);
            //Assert
            Assert.IsNotNull(res);
            Assert.That(res, Is.EqualTo(string.Empty));
        }

        [Test]
        public void ParseSensorKnownChannelType_ShouldRetuenEmpty_WhenPassedLessThan2Char()
        {
            //Arrange
            //Act
            var res = ChannelTypeUtility.ParseSensorKnownChannelType("A");
            //Assert
            Assert.IsNotNull(res);
            Assert.That(res, Is.EqualTo(string.Empty));
        }

        [Test]
        public void ParseSensorKnownChannelType_ShouldRetuenEmpty_WhenPassedNameWithUnknown2Char()
        {
            //Arrange
            //Act
            var res = ChannelTypeUtility.ParseSensorKnownChannelType("XA087155.1");
            //Assert
            Assert.IsNotNull(res);
            Assert.That(res, Is.EqualTo(string.Empty));
        }

        [Test]
        public void ParseSensorKnownChannelType_ShouldRetuenEmpty_WhenPassedEmptyString()
        {
            //Arrange
            //Act
            var res = ChannelTypeUtility.ParseSensorKnownChannelType("");
            //Assert
            Assert.IsNotNull(res);
            Assert.That(res, Is.EqualTo(""));
        }

        [TestCaseSource("GetKnownChannelTypes")]
        public void ParseSensorKnownChannelType_ShouldRetuenCorrectTag_WhenPassedSensorNameWithCorrectPrefix(string sensorName)
        {
            //Arrange
            //Act
            var res = ChannelTypeUtility.ParseSensorKnownChannelType(sensorName);
            //Assert
            Assert.IsNotNull(res);
            Enum.IsDefined(typeof(KnownChannelTypes), res);
        }
    }
}