Make the tests more stable.

backend/src/Squidex.Infrastructure/Log/BackgroundRequestLogStore.cs

@@ -19,8 +19,9 @@ public sealed class BackgroundRequestLogStore : DisposableObjectBase, IRequestLo
     private readonly CompletionTimer logTimer;
     private readonly RequestLogStoreOptions options;
     private readonly ConcurrentQueue<Request> jobs = new ConcurrentQueue<Request>();
+    private bool isUpdating;
 
-    public int PendingJobs => jobs.Count;
+    public bool HasPendingJobs => !jobs.IsEmpty || isUpdating;
 
     public bool IsEnabled => options.StoreEnabled;
 
@@ -63,6 +64,7 @@ public sealed class BackgroundRequestLogStore : DisposableObjectBase, IRequestLo
             return;
         }
 
+        isUpdating = true;
         try
         {
             var batch = new List<Request>(options.BatchSize);
@@ -87,6 +89,10 @@ public sealed class BackgroundRequestLogStore : DisposableObjectBase, IRequestLo
         {
             log.LogError(ex, "Failed to track usage in background.");
         }
+        finally
+        {
+            isUpdating = false;
+        }
     }
 
     public Task DeleteAsync(string key,

backend/src/Squidex.Infrastructure/UsageTracking/BackgroundUsageTracker.cs

@@ -18,8 +18,9 @@ public sealed class BackgroundUsageTracker : DisposableObjectBase, IUsageTracker
     private readonly ILogger<BackgroundUsageTracker> log;
     private readonly CompletionTimer usageTimer;
     private ConcurrentDictionary<(string Key, string Category, DateTime Date), Counters> jobs = new ConcurrentDictionary<(string Key, string Category, DateTime Date), Counters>();
+    private bool isUpdating;
 
-    public int PendingJobs => jobs.Count;
+    public bool HasPendingJobs => !jobs.IsEmpty || isUpdating;
 
     public string FallbackCategory => "*";
 
@@ -52,35 +53,41 @@ public sealed class BackgroundUsageTracker : DisposableObjectBase, IUsageTracker
     {
         try
         {
+            isUpdating = true;
+
             var localUsages = Interlocked.Exchange(ref jobs, new ConcurrentDictionary<(string Key, string Category, DateTime Date), Counters>());
 
             if (!localUsages.IsEmpty)
             {
-                var updates = new UsageUpdate[localUsages.Count];
+                var updateBatch = new UsageUpdate[localUsages.Count];
                 var updateIndex = 0;
 
                 foreach (var (key, value) in localUsages)
                 {
-                    if (updateIndex >= updates.Length)
+                    if (updateIndex >= updateBatch.Length)
                     {
                         break;
                     }
 
-                    updates[updateIndex].Key = key.Key;
-                    updates[updateIndex].Category = key.Category;
-                    updates[updateIndex].Counters = value;
-                    updates[updateIndex].Date = key.Date;
+                    updateBatch[updateIndex].Key = key.Key;
+                    updateBatch[updateIndex].Category = key.Category;
+                    updateBatch[updateIndex].Counters = value;
+                    updateBatch[updateIndex].Date = key.Date;
 
                     updateIndex++;
                 }
 
-                await usageRepository.TrackUsagesAsync(updates, ct);
+                await usageRepository.TrackUsagesAsync(updateBatch, ct);
             }
         }
         catch (Exception ex)
         {
             log.LogError(ex, "Failed to track usage in background.");
         }
+        finally
+        {
+            isUpdating = false;
+        }
     }
 
     public Task DeleteAsync(string key,

backend/tests/Squidex.Infrastructure.Tests/Log/BackgroundRequestLogStoreTests.cs

@@ -121,12 +121,14 @@ public class BackgroundRequestLogStoreTests
 
         using var tcs = new CancellationTokenSource(TimeSpan.FromSeconds(5000));
 
-        while (sut.PendingJobs > 0)
+        while (sut.HasPendingJobs)
         {
             tcs.Token.ThrowIfCancellationRequested();
 
             await Task.Delay(20, tcs.Token);
         }
+
+        sut.Dispose();
     }
 
     private static IEnumerable<Request> Batch(string from, string to)

backend/tests/Squidex.Infrastructure.Tests/UsageTracking/BackgroundUsageTrackerTests.cs

@@ -249,12 +249,14 @@ public class BackgroundUsageTrackerTests
 
         using var tcs = new CancellationTokenSource(TimeSpan.FromSeconds(5));
 
-        while (sut.PendingJobs > 0)
+        while (sut.HasPendingJobs)
         {
             tcs.Token.ThrowIfCancellationRequested();
 
             await Task.Delay(20, tcs.Token);
         }
+
+        sut.Dispose();
     }
 
     private static Counters Counters(double? a = null, double? b = null)