From d9ed0c1b0fb04d161d27b556e33f0a03738e717d Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 18 Jun 2020 19:41:51 +0800
Subject: feat(back): Timeline service add post modified since.

---
 Timeline.Tests/Helpers/TestClock.cs            |  2 +-
 Timeline.Tests/Services/TimelineServiceTest.cs | 34 ++++++++++++++++++++++++--
 2 files changed, 33 insertions(+), 3 deletions(-)

(limited to 'Timeline.Tests')

diff --git a/Timeline.Tests/Helpers/TestClock.cs b/Timeline.Tests/Helpers/TestClock.cs
index de7d0eb7..0cbf236d 100644
--- a/Timeline.Tests/Helpers/TestClock.cs
+++ b/Timeline.Tests/Helpers/TestClock.cs
@@ -36,7 +36,7 @@ namespace Timeline.Tests.Helpers
         {
             if (_currentTime == null)
                 return SetMockCurrentTime();
-            _currentTime.Value.Add(timeSpan);
+            _currentTime += timeSpan;
             return _currentTime.Value;
         }
     }
diff --git a/Timeline.Tests/Services/TimelineServiceTest.cs b/Timeline.Tests/Services/TimelineServiceTest.cs
index cb2ade61..4f081b5d 100644
--- a/Timeline.Tests/Services/TimelineServiceTest.cs
+++ b/Timeline.Tests/Services/TimelineServiceTest.cs
@@ -63,11 +63,11 @@ namespace Timeline.Tests.Services
         [InlineData("tl")]
         public async Task Timeline_LastModified(string timelineName)
         {
-            _clock.ForwardCurrentTime();
+            var initTime = _clock.ForwardCurrentTime();
 
             void Check(Models.Timeline timeline)
             {
-                timeline.NameLastModified.Should().Be(_clock.GetCurrentTime());
+                timeline.NameLastModified.Should().Be(initTime);
                 timeline.LastModified.Should().Be(_clock.GetCurrentTime());
             }
 
@@ -90,5 +90,35 @@ namespace Timeline.Tests.Services
             await _timelineService.ChangeMember(timelineName, new List<string> { "admin" }, null);
             await GetAndCheck();
         }
+
+        [Theory]
+        [InlineData("@user")]
+        [InlineData("tl")]
+        public async Task GetPosts_ModifiedSince(string timelineName)
+        {
+            _clock.ForwardCurrentTime();
+
+            var userId = await _userService.GetUserIdByUsername("user");
+
+            var _ = TimelineHelper.ExtractTimelineName(timelineName, out var isPersonal);
+            if (!isPersonal)
+                await _timelineService.CreateTimeline(timelineName, userId);
+
+            var postContentList = new string[] { "a", "b", "c", "d" };
+
+            DateTime testPoint = new DateTime();
+
+            foreach (var (content, index) in postContentList.Select((v, i) => (v, i)))
+            {
+                var t = _clock.ForwardCurrentTime();
+                if (index == 1)
+                    testPoint = t;
+                await _timelineService.CreateTextPost(timelineName, userId, content, null);
+            }
+
+            var posts = await _timelineService.GetPosts(timelineName, testPoint);
+            posts.Should().HaveCount(2)
+                .And.Subject.Select(p => (p.Content as TextTimelinePostContent).Text).Should().Equal(postContentList.Skip(2));
+        }
     }
 }
-- 
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