prioritize newly created accounts in sync + test

src/DataAccessLayers/BirdsiteLive.DAL.Postgres/DataAccessLayers/TwitterUserPostgresDal.cs

@@ -88,7 +88,7 @@ namespace BirdsiteLive.DAL.Postgres.DataAccessLayers
 
         public async Task<SyncTwitterUser[]> GetAllTwitterUsersAsync(int maxNumber)
         {
-            var query = $"SELECT * FROM {_settings.TwitterUserTableName} ORDER BY lastSync ASC LIMIT @maxNumber";
+            var query = $"SELECT * FROM {_settings.TwitterUserTableName} ORDER BY lastSync ASC NULLS FIRST LIMIT @maxNumber";
 
             using (var dbConnection = Connection)
             {

src/Tests/BirdsiteLive.DAL.Postgres.Tests/DataAccessLayers/TwitterUserPostgresDalTests.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Diagnostics;
+using System.Linq;
 using System.Threading.Tasks;
 using System.Xml;
 using BirdsiteLive.DAL.Postgres.DataAccessLayers;
@@ -231,6 +232,39 @@ namespace BirdsiteLive.DAL.Postgres.Tests.DataAccessLayers
             Assert.IsFalse(result[0].LastTweetSynchronizedForAllFollowersId == default);
         }
 
+        [TestMethod]
+        public async Task GetAllTwitterUsers_Top_NotInit()
+        {
+            // Create accounts
+            var dal = new TwitterUserPostgresDal(_settings);
+            for (var i = 0; i < 1000; i++)
+            {
+                var acct = $"myid{i}";
+                var lastTweetId = i+10;
+
+                await dal.CreateTwitterUserAsync(acct, lastTweetId);
+            }
+
+            // Update accounts
+            var now = DateTime.UtcNow;
+            var allUsers = await dal.GetAllTwitterUsersAsync();
+            foreach (var acc in allUsers)
+            {
+                var lastSync = now.AddDays(acc.LastTweetPostedId);
+                acc.LastSync = lastSync;
+                await dal.UpdateTwitterUserAsync(acc);
+            }
+
+            // Create a not init account
+            await dal.CreateTwitterUserAsync("not_init", -1);
+
+            var result = await dal.GetAllTwitterUsersAsync(10);
+
+            Assert.IsTrue(result.Any(x => x.Acct == "myid0"));
+            Assert.IsTrue(result.Any(x => x.Acct == "myid8"));
+            Assert.IsTrue(result.Any(x => x.Acct == "not_init"));
+        }
+
         [TestMethod]
         public async Task GetAllTwitterUsers_Limited()
         {