diff --git a/tests/dagger/testblockset.nim b/tests/dagger/testblockset.nim
new file mode 100644
index 00000000..86ddb4af
--- /dev/null
+++ b/tests/dagger/testblockset.nim
@@ -0,0 +1,28 @@
+
+import pkg/chronos
+import pkg/questionable
+import pkg/questionable/results
+import pkg/asynctest
+import pkg/libp2p
+import pkg/stew/byteutils as stew
+
+import pkg/dagger/chunker
+import pkg/dagger/rng
+import pkg/dagger/blocktype as bt
+import pkg/dagger/blockstream
+import pkg/dagger/blockset
+
+suite "Data set":
+  test "Make from Blocks":
+    let
+      blockStream = ChunkedBlockStreamRef.new(
+        newRandomChunker(Rng.instance(), size = 256 * 7, chunkSize = 256))
+      blockSet = BlockSetRef.new(stream = blockStream)
+
+    let res = blockSet.treeHash()
+    check res.isOK
+    if h =? res:
+      echo h.hashBytes()
+      return
+
+    echo res.error.msg