1 files changed, 64 insertions, 0 deletions
diff --git a/BackEnd/Timeline.Tests/Helpers/CacheTestHelper.cs b/BackEnd/Timeline.Tests/Helpers/CacheTestHelper.cs
new file mode 100644
index 00000000..b3709a28
--- /dev/null
+++ b/BackEnd/Timeline.Tests/Helpers/CacheTestHelper.cs
@@ -0,0 +1,64 @@
+using FluentAssertions;
+using System;
+using System.Net;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Threading.Tasks;
+using Timeline.Models.Http;
+
+namespace Timeline.Tests.Helpers
+{
+    public static class CacheTestHelper
+    {
+        public static async Task TestCache(HttpClient client, string getUrl)
+        {
+            EntityTagHeaderValue eTag;
+            {
+                var res = await client.GetAsync(getUrl);
+                res.Should().HaveStatusCode(200);
+                var cacheControlHeader = res.Headers.CacheControl;
+                cacheControlHeader.NoCache.Should().BeTrue();
+                cacheControlHeader.NoStore.Should().BeFalse();
+                cacheControlHeader.Private.Should().BeTrue();
+                cacheControlHeader.Public.Should().BeFalse();
+                cacheControlHeader.MustRevalidate.Should().BeTrue();
+                cacheControlHeader.MaxAge.Should().NotBeNull().And.Be(TimeSpan.FromDays(14));
+                eTag = res.Headers.ETag;
+            }
+
+            {
+                using var request = new HttpRequestMessage()
+                {
+                    RequestUri = new Uri(client.BaseAddress, getUrl),
+                    Method = HttpMethod.Get,
+                };
+                request.Headers.TryAddWithoutValidation("If-None-Match", "\"dsdfd");
+                var res = await client.SendAsync(request);
+                res.Should().HaveStatusCode(HttpStatusCode.BadRequest)
+                    .And.HaveCommonBody(ErrorCodes.Common.Header.IfNonMatch_BadFormat);
+            }
+
+            {
+                using var request = new HttpRequestMessage()
+                {
+                    RequestUri = new Uri(client.BaseAddress, getUrl),
+                    Method = HttpMethod.Get,
+                };
+                request.Headers.TryAddWithoutValidation("If-None-Match", "\"aaa\"");
+                var res = await client.SendAsync(request);
+                res.Should().HaveStatusCode(HttpStatusCode.OK);
+            }
+
+            {
+                using var request = new HttpRequestMessage()
+                {
+                    RequestUri = new Uri(client.BaseAddress, getUrl),
+                    Method = HttpMethod.Get,
+                };
+                request.Headers.Add("If-None-Match", eTag.ToString());
+                var res = await client.SendAsync(request);
+                res.Should().HaveStatusCode(HttpStatusCode.NotModified);
+            }
+        }
+    }
+}