fix(): fix stream

lib/rox.ex

@@ -247,7 +247,7 @@ defmodule Rox do
     Stream.resource(fn ->
       {:ok, iter } = :erocksdb.iterator(db, read_opts)
       {iter, :first}
-    end, scan_or_decode, fn {iter,_} ->
+    end, scan_or_decode, fn iter ->
       :erocksdb.iterator_close(iter)
     end)
   end

test/rox_test.exs

@@ -30,4 +30,13 @@ defmodule RoxTest do
 
     assert count == 1
   end
+
+  test "stream", %{db: db} do
+    :ok = Rox.put(db, "key", "val")
+
+    count = Rox.stream(db)
+    |> Enum.count
+
+    assert count == 1
+  end
 end