streamelss and manifestonly tests

ProjectPlugins/CodexPlugin/CodexNode.cs

@@ -37,6 +37,8 @@ namespace CodexPlugin
         /// </summary>
         void DeleteRepoFolder();
         void Stop(bool waitTillStopped);
+        void DownloadStreamless(ContentId cid);
+        Manifest DownloadManifestOnly(ContentId cid);
     }
 
     public class CodexNode : ICodexNode

Tests/CodexReleaseTests/DataTests/ManifestOnlyDownloadTest.cs

@@ -0,0 +1,31 @@
+using CodexTests;
+using NUnit.Framework;
+using Utils;
+
+namespace CodexReleaseTests.DataTests
+{
+    [TestFixture]
+    public class ManifestOnlyDownloadTest : CodexDistTest
+    {
+        [Test]
+        public void StreamlessTest()
+        {
+            var uploader = StartCodex();
+            var downloader = StartCodex(s => s.WithBootstrapNode(uploader));
+
+            var file = GenerateTestFile(2.GB());
+            var size = Convert.ToInt64(file.GetFilesize());
+            var cid = uploader.UploadFile(file);
+
+            var startSpace = downloader.Space();
+            var manifest = downloader.DownloadManifestOnly(cid);
+
+            Thread.Sleep(1000);
+
+            var spaceDiff = startSpace.FreeBytes - downloader.Space().FreeBytes;
+
+            Assert.That(spaceDiff, Is.LessThan(64.KB().SizeInBytes));
+            Assert.That(manifest.OriginalBytes.SizeInBytes, Is.EqualTo(file.GetFilesize().SizeInBytes));
+        }
+    }
+}

Tests/CodexReleaseTests/DataTests/StreamlessDownloadTest.cs

@@ -0,0 +1,43 @@
+using CodexTests;
+using NUnit.Framework;
+using Utils;
+
+namespace CodexReleaseTests.DataTests
+{
+    [TestFixture]
+    public class StreamlessDownloadTest : CodexDistTest
+    {
+        [Test]
+        public void StreamlessTest()
+        {
+            var uploader = StartCodex();
+            var downloader = StartCodex(s => s.WithBootstrapNode(uploader));
+
+            var file = GenerateTestFile(10.MB());
+            var size = Convert.ToInt64(file.GetFilesize());
+            var cid = uploader.UploadFile(file);
+
+            var startSpace = downloader.Space();
+            var start = DateTime.UtcNow;
+            downloader.DownloadStreamless(cid);
+
+            // TODO: We have no way to inspect the status or progress of the download.
+            // We use local space information to estimate.
+            var retry = new Retry("Checking local space",
+                maxTimeout: TimeSpan.FromMinutes(2),
+                sleepAfterFail: TimeSpan.FromSeconds(3),
+                onFail: f => { });
+
+            retry.Run(() =>
+            {
+                var space = downloader.Space();
+                Assert.That(space.FreeBytes, Is.LessThanOrEqualTo(startSpace.FreeBytes - size));
+            });
+
+            // Stop the uploader node and verify that the downloader has the data.
+            uploader.Stop(waitTillStopped: true);
+            var downloaded = downloader.DownloadContent(cid);
+            file.AssertIsEqual(downloaded);
+        }
+    }
+}