Sets up continuous test for fetch connectivity.

ContinuousTests/Tests/FetchTest.cs

@@ -0,0 +1,18 @@
+using DistTestCore.Helpers;
+
+namespace ContinuousTests.Tests
+{
+    public class FetchTest : ContinuousTest
+    {
+        public override int RequiredNumberOfNodes => -1;
+        public override TimeSpan RunTestEvery => TimeSpan.FromMinutes(2);
+        public override TestFailMode TestFailMode => TestFailMode.AlwaysRunAllMoments;
+
+        [TestMoment(t: 0)]
+        public void CheckConnectivity()
+        {
+            var checker = new PeerFetchTestHelpers(Log, FileManager);
+            checker.AssertFullFetchInterconnectivity(Nodes);
+        }
+    }
+}

DistTestCore/Helpers/PeerFetchTestHelpers.cs

@@ -9,11 +9,11 @@ namespace DistTestCore.Helpers
     {
         private readonly FullConnectivityHelper helper;
         private readonly BaseLog log;
-        private readonly FileManager fileManager;
+        private readonly IFileManager fileManager;
         private readonly ByteSize testFileSize;
         private readonly int expectedNumberOfBlocks;
 
-        public PeerFetchTestHelpers(BaseLog log, FileManager fileManager)
+        public PeerFetchTestHelpers(BaseLog log, IFileManager fileManager)
         {
             helper = new FullConnectivityHelper(log, this);
             testFileSize = 10.MB();