DD.WellWorkover.Cloud/AsbCloudWebApi.Tests/Services/SAUB/TelemetryDataSaubCacheTests.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using AsbCloudApp.Data.SAUB;
using AsbCloudDb.Model;
using AsbCloudInfrastructure.Background;
using AsbCloudInfrastructure.Services.SAUB;
using Microsoft.Extensions.DependencyInjection;
using NSubstitute;
using Xunit;

namespace AsbCloudWebApi.Tests.ServicesTests.SAUB;

public class TelemetryDataSaubCacheTests
{
	private const int idTelemetry = 1;

	private readonly IEnumerable<TelemetryDataSaubDto> fakeTelemetries = new[]
	{
		new TelemetryDataSaubDto()
	};

	private readonly IServiceProvider serviceProviderMock = Substitute.For<IServiceProvider>();

	private readonly TelemetryDataCache<TelemetryDataSaubDto> telemetryDataCache;
	private readonly Type telemetryDataCacheType;
	
	public TelemetryDataSaubCacheTests()
	{
		serviceProviderMock.GetService<BackgroundWorker>().Returns(new BackgroundWorker(serviceProviderMock));
		
		telemetryDataCache = TelemetryDataCache<TelemetryDataSaubDto>.GetInstance<TelemetryDataSaub>(serviceProviderMock);

		telemetryDataCacheType = telemetryDataCache.GetType();
	}

	[Fact]
	public void AddRange_ShouldReturn_AddedElementToCache()
	{ 
		//arrange
		telemetryDataCacheType.GetField("isLoading", BindingFlags.NonPublic | BindingFlags.Instance)?.SetValue(telemetryDataCache, false);

		//act
		telemetryDataCache.AddRange(idTelemetry, fakeTelemetries);
		var lastTelemetry = telemetryDataCache.GetLastOrDefault(idTelemetry);
		
		//assert
		Assert.Equal(lastTelemetry, fakeTelemetries.Last());
	}

	[Fact]
	public void AddRange_ShouldReturn_NotAddedToCache()
	{
		//arrange
		telemetryDataCacheType.GetField("isLoading", BindingFlags.NonPublic | BindingFlags.Instance)?.SetValue(telemetryDataCache, true);
		
		//act
		telemetryDataCache.AddRange(idTelemetry, fakeTelemetries);
		var lastTelemetry = telemetryDataCache.GetLastOrDefault(idTelemetry);
		
		//assert
		Assert.NotEqual(lastTelemetry, fakeTelemetries.Last());
	}
}