unit tests for API (99% coverage)

MalwareMultiScan.Api/Services/Implementations/ScanBackendService.cs

@@ -0,0 +1,54 @@
+using System;
+using System.IO;
+using System.Threading.Tasks;
+using EasyNetQ;
+using MalwareMultiScan.Api.Data.Configuration;
+using MalwareMultiScan.Api.Data.Models;
+using MalwareMultiScan.Api.Services.Interfaces;
+using MalwareMultiScan.Backends.Messages;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+using YamlDotNet.Serialization;
+using YamlDotNet.Serialization.NamingConventions;
+
+namespace MalwareMultiScan.Api.Services.Implementations
+{
+    public class ScanBackendService : IScanBackendService
+    {
+        private readonly IBus _bus;
+        private readonly ILogger<ScanBackendService> _logger;
+
+        public ScanBackendService(IConfiguration configuration, IBus bus, ILogger<ScanBackendService> logger)
+        {
+            _bus = bus;
+            _logger = logger;
+
+            var configurationPath = configuration.GetValue<string>("BackendsConfiguration");
+
+            if (!File.Exists(configurationPath))
+                throw new FileNotFoundException("Missing BackendsConfiguration YAML file", configurationPath);
+
+            var configurationContent = File.ReadAllText(configurationPath);
+
+            var deserializer = new DeserializerBuilder()
+                .WithNamingConvention(CamelCaseNamingConvention.Instance)
+                .Build();
+
+            List = deserializer.Deserialize<ScanBackend[]>(configurationContent);
+        }
+        
+        public ScanBackend[] List { get; }
+        
+        public async Task QueueUrlScan(ScanResult result, ScanBackend backend, string fileUrl)
+        {
+            _logger.LogInformation(
+                $"Queueing scan for {result.Id} on {backend.Id} at {fileUrl}");
+
+            await _bus.SendAsync(backend.Id, new ScanRequestMessage
+            {
+                Id = result.Id,
+                Uri = new Uri(fileUrl)
+            });
+        }
+    }
+}