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diff --git a/test/mix/pleroma_test.exs b/test/mix/pleroma_test.exs
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+++ b/test/mix/pleroma_test.exs
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mix.PleromaTest do
+  use ExUnit.Case, async: true
+  import Mix.Pleroma
+
+  setup_all do
+    Mix.shell(Mix.Shell.Process)
+
+    on_exit(fn ->
+      Mix.shell(Mix.Shell.IO)
+    end)
+
+    :ok
+  end
+
+  describe "shell_prompt/1" do
+    test "input" do
+      send(self(), {:mix_shell_input, :prompt, "Yes"})
+
+      answer = shell_prompt("Do you want this?")
+      assert_received {:mix_shell, :prompt, [message]}
+      assert message =~ "Do you want this?"
+      assert answer == "Yes"
+    end
+
+    test "with defval" do
+      send(self(), {:mix_shell_input, :prompt, "\n"})
+
+      answer = shell_prompt("Do you want this?", "defval")
+
+      assert_received {:mix_shell, :prompt, [message]}
+      assert message =~ "Do you want this? [defval]"
+      assert answer == "defval"
+    end
+  end
+
+  describe "get_option/3" do
+    test "get from options" do
+      assert get_option([domain: "some-domain.com"], :domain, "Promt") == "some-domain.com"
+    end
+
+    test "get from prompt" do
+      send(self(), {:mix_shell_input, :prompt, "another-domain.com"})
+      assert get_option([], :domain, "Prompt") == "another-domain.com"
+    end
+  end
+end