#7205798 test

AsbCloudInfrastructure/EfCache/EfCacheExtensions.cs

@@ -158,8 +158,11 @@ namespace AsbCloudInfrastructure.EfCache
                 {
                     try
                     {
-                        cache = new CacheItem();
-                        caches.Add(tag, cache);
+                        if (!caches.ContainsKey(tag))
+                        {
+                            cache = new CacheItem();
+                            caches.Add(tag, cache);
+                        }
                     }
                     finally
                     {
@@ -231,8 +234,11 @@ namespace AsbCloudInfrastructure.EfCache
                 {
                     try
                     {
-                        cache = new CacheItem();
-                        caches.Add(tag, cache);
+                        if (!caches.ContainsKey(tag))
+                        {
+                            cache = new CacheItem();
+                            caches.Add(tag, cache);
+                        }
                     }
                     finally
                     {

AsbCloudWebApi.Tests/CacheTests/CacheTest.cs

@@ -0,0 +1,61 @@
+using AsbCloudApp.Data;
+using AsbCloudApp.Services;
+using AsbCloudDb.Model;
+using AsbCloudInfrastructure.EfCache;
+using DocumentFormat.OpenXml.Spreadsheet;
+using Mapster;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace AsbCloudWebApi.Tests.CacheTests
+{
+    public class CacheTest
+    {
+        private readonly string userCacheTag = "Users";
+        private static readonly TimeSpan cacheObsolence = TimeSpan.FromMinutes(15);
+        public IEnumerable<User> UsersCache = new List<User> { 
+            new User { Id = 1, Name = "test1", Email = "test1@mail.com" },
+            new User { Id = 2, Name = "test2", Email = "test2@mail.com" },
+            new User { Id = 3, Name = "test3", Email = "test3@mail.com" },
+            new User { Id = 4, Name = "test4", Email = "test4@mail.com" },
+            new User { Id = 5, Name = "test5", Email = "test5@mail.com" },
+            new User { Id = 6, Name = "test6", Email = "test6@mail.com" },
+            new User { Id = 7, Name = "test7", Email = "test7@mail.com" }
+        };
+
+        [Fact]
+        public void Send_n_requests_cache_user()
+        {
+            const int iterations = 1230;
+            var cache = UsersCache.AsQueryable();
+            var cacheCount = UsersCache.Count();
+            var fail = false;
+
+            var tasks = new int[iterations].Select(_=> new Task(() =>
+            {
+                var data = cache.FromCache(userCacheTag, cacheObsolence, Convert).ToArray();
+                if (data.Count() != cacheCount)
+                    fail = true;
+            }))
+                .ToArray();
+
+            foreach(var task in tasks)
+                task.Start();
+
+            Task.WaitAll(tasks);
+            Assert.False(fail);
+        }
+
+        private UserExtendedDto Convert(User entity)
+        {
+            var dto = entity.Adapt<UserExtendedDto>();
+            return dto;
+        }
+    }
+}