satellite-provider/SatelliteProvider.Tests/GoogleMapsDownloaderTests.cs

using FluentAssertions;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using SatelliteProvider.Common.Configs;
using SatelliteProvider.Common.DTO;
using SatelliteProvider.Services;
using Xunit;

namespace SatelliteProvider.Tests;

public class GoogleMapsDownloaderTests
{
    [Fact]
    public async Task IntegrationTest_DownloadRealTiles_ShouldDownloadBytes()
    {
        var configuration = new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("appsettings.json")
            .Build();

        var mapConfig = new MapConfig();
        configuration.GetSection("MapConfig").Bind(mapConfig);

        var services = new ServiceCollection();
        services.AddHttpClient();
        services.AddLogging(builder => builder.AddConsole());
        var serviceProvider = services.BuildServiceProvider();

        var logger = serviceProvider.GetRequiredService<ILogger<GoogleMapsDownloader>>();
        var options = Options.Create(mapConfig);
        var httpClientFactory = serviceProvider.GetRequiredService<IHttpClientFactory>();

        var downloader = new GoogleMapsDownloader(logger, options, httpClientFactory);

        var centerPoint = new GeoPoint(37.7749, -122.4194);
        var radius = 200.0;
        var zoomLevel = 15;

        await downloader.GetTiles(centerPoint, radius, zoomLevel);

        var mapsDirectory = Path.Combine(Directory.GetCurrentDirectory(), "maps");
        Directory.Exists(mapsDirectory).Should().BeTrue();

        var files = Directory.GetFiles(mapsDirectory, "*.jpg");
        files.Should().NotBeEmpty();

        var totalBytes = files.Sum(file => new FileInfo(file).Length);
        totalBytes.Should().BeGreaterThan(0);

        foreach (var file in files)
        {
            File.Delete(file);
        }
    }
}