Add dummy data in test case.

osu.Desktop.VisualTests/Tests/TestCaseUserProfile.cs

@@ -1,6 +1,8 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
+using System;
+using System.Linq;
 using osu.Framework.Testing;
 using osu.Game.Overlays;
 using osu.Game.Users;
@@ -17,6 +19,31 @@ namespace osu.Desktop.VisualTests.Tests
             var profile = new UserProfileOverlay();
             Add(profile);
 
+            AddStep("Show offline dummy", () => profile.ShowUser(new User
+            {
+                Username = @"Somebody",
+                Id = 1,
+                Country = new Country { FullName = @"Alien" },
+                CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c1.jpg",
+                JoinDate = DateTimeOffset.Now.AddDays(-1),
+                LastVisit = DateTimeOffset.Now,
+                Age = 1,
+                ProfileOrder = new[] { "me" },
+                CountryRank = 1,
+                Statistics = new UserStatistics
+                {
+                    Rank = 2148,
+                    PP = 4567.89m
+                },
+                AllRankHistories = new User.RankHistories
+                {
+                    Osu = new User.RankHistory
+                    {
+                        Mode = @"osu",
+                        Data = Enumerable.Range(2345,45).Concat(Enumerable.Range(2109,40)).ToArray()
+                    }
+                }
+            }, false));
             AddStep("Show ppy", () => profile.ShowUser(new User
             {
                 Username = @"peppy",

osu.Game/Users/User.cs

@@ -124,5 +124,32 @@ namespace osu.Game.Users
 
         [JsonProperty(@"defaultStatistics")]
         public UserStatistics Statistics;
+
+        public class RankHistories
+        {
+            [JsonProperty(@"osu")]
+            public RankHistory Osu;
+
+            [JsonProperty(@"taiko")]
+            public RankHistory Taiko;
+
+            [JsonProperty(@"fruits")]
+            public RankHistory Fruits;
+
+            [JsonProperty(@"mania")]
+            public RankHistory Mania;
+        }
+
+        public class RankHistory
+        {
+            [JsonProperty(@"mode")]
+            public string Mode;
+
+            [JsonProperty(@"data")]
+            public int[] Data;
+        }
+
+        [JsonProperty(@"allRankHistories")]
+        public RankHistories AllRankHistories;
     }
 }