diff --git a/tools/astarte_dev_tool/test/realm_test.exs b/tools/astarte_dev_tool/test/realm_test.exs
new file mode 100644
index 000000000..4c0ff9b88
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+++ b/tools/astarte_dev_tool/test/realm_test.exs
@@ -0,0 +1,48 @@
+#
+# This file is part of Astarte.
+#
+# Copyright 2024 SECO Mind Srl
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+defmodule AstarteDevToolTest.Realm do
+  use ExUnit.Case
+  alias AstarteDevTool.Commands.Realm
+
+  @nodes [
+    {"localhost", "9042"}
+  ]
+
+  @realm "realm1"
+
+  @doctest false
+  @moduletag :realm
+  describe "unit test" do
+    test "1" do
+      assert true
+    end
+
+    test "2" do
+      assert :ok = Realm.Create.exec(@nodes, @realm)
+    end
+  end
+
+  describe "mix tasks" do
+    test "1" do
+      # {:ok, private} = Mix.Tasks.AstarteDevTool.Auth.Keys.run([])
+      # {:ok, public} = Mix.Tasks.AstarteDevTool.Auth.Keys.run(["--", private])
+      assert 1
+    end
+  end
+end