finished unit tests and docstrings

MalwareMultiScan.Api/Services/Implementations/ScanResultService.cs

@@ -9,6 +9,7 @@ using MongoDB.Driver.GridFS;
 
 namespace MalwareMultiScan.Api.Services.Implementations
 {
+    /// <inheritdoc />
     public class ScanResultService : IScanResultService
     {
         private const string CollectionName = "ScanResults";
@@ -16,15 +17,22 @@ namespace MalwareMultiScan.Api.Services.Implementations
         private readonly IGridFSBucket _bucket;
         private readonly IMongoCollection<ScanResult> _collection;
         private readonly IScanBackendService _scanBackendService;
-        
+
+        /// <summary>
+        /// Initialize scan result service.
+        /// </summary>
+        /// <param name="db">Mongo database.</param>
+        /// <param name="bucket">GridFS bucket.</param>
+        /// <param name="scanBackendService">Scan backend service.</param>
         public ScanResultService(IMongoDatabase db, IGridFSBucket bucket, IScanBackendService scanBackendService)
         {
             _bucket = bucket;
             _scanBackendService = scanBackendService;
-            
+
             _collection = db.GetCollection<ScanResult>(CollectionName);
         }
         
+        /// <inheritdoc />
         public async Task<ScanResult> CreateScanResult()
         {
             var scanResult = new ScanResult
@@ -38,7 +46,8 @@ namespace MalwareMultiScan.Api.Services.Implementations
 
             return scanResult;
         }
-        
+
+        /// <inheritdoc />
         public async Task<ScanResult> GetScanResult(string id)
         {
             var result = await _collection.FindAsync(
@@ -46,7 +55,8 @@ namespace MalwareMultiScan.Api.Services.Implementations
 
             return await result.FirstOrDefaultAsync();
         }
-        
+
+        /// <inheritdoc />
         public async Task UpdateScanResultForBackend(string resultId, string backendId, long duration,
             bool completed = false, bool succeeded = false, string[] threats = null)
         {
@@ -60,13 +70,15 @@ namespace MalwareMultiScan.Api.Services.Implementations
                     Threats = threats ?? new string[] { }
                 }));
         }
-        
+
+        /// <inheritdoc />
         public async Task QueueUrlScan(ScanResult result, string fileUrl)
         {
             foreach (var backend in _scanBackendService.List.Where(b => b.Enabled))
                 await _scanBackendService.QueueUrlScan(result, backend, fileUrl);
         }
-        
+
+        /// <inheritdoc />
         public async Task<string> StoreFile(string fileName, Stream fileStream)
         {
             var objectId = await _bucket.UploadFromStreamAsync(
@@ -74,7 +86,8 @@ namespace MalwareMultiScan.Api.Services.Implementations
 
             return objectId.ToString();
         }
-        
+
+        /// <inheritdoc />
         public async Task<Stream> ObtainFile(string id)
         {
             if (!ObjectId.TryParse(id, out var objectId))