Validation tests for the new command

(cherry picked from commit 9dc8994)

deps/rabbitmq_cli/test/ctl/decrypt_conf_value_command_test.exs

@@ -0,0 +1,83 @@
+## This Source Code Form is subject to the terms of the Mozilla Public
+## License, v. 2.0. If a copy of the MPL was not distributed with this
+## file, You can obtain one at https://mozilla.org/MPL/2.0/.
+##
+## Copyright (c) 2007-2024 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  All rights reserved.
+
+defmodule DecryptConfValueCommandTest do
+  use ExUnit.Case, async: false
+  @command RabbitMQ.CLI.Ctl.Commands.DecryptConfValueCommand
+
+  setup _context do
+    {:ok,
+     opts: %{
+       cipher: :rabbit_pbe.default_cipher(),
+       hash: :rabbit_pbe.default_hash(),
+       iterations: :rabbit_pbe.default_iterations()
+     }}
+  end
+
+  test "validate: providing exactly 2 positional arguments passes", context do
+    assert :ok == @command.validate(["value", "secret"], context[:opts])
+  end
+
+  test "validate: providing no positional arguments fails", context do
+    assert match?(
+             {:validation_failure, {:not_enough_args, _}},
+             @command.validate([], context[:opts])
+           )
+  end
+
+  test "validate: providing one positional argument passes", context do
+    assert :ok == @command.validate(["value"], context[:opts])
+  end
+
+  test "validate: providing three or more positional argument fails", context do
+    assert match?(
+             {:validation_failure, :too_many_args},
+             @command.validate(["value", "secret", "incorrect"], context[:opts])
+           )
+  end
+
+  test "validate: hash and cipher must be supported", context do
+    assert match?(
+             {:validation_failure, {:bad_argument, _}},
+             @command.validate(
+               ["value", "secret"],
+               Map.merge(context[:opts], %{cipher: :funny_cipher})
+             )
+           )
+
+    assert match?(
+             {:validation_failure, {:bad_argument, _}},
+             @command.validate(
+               ["value", "secret"],
+               Map.merge(context[:opts], %{hash: :funny_hash})
+             )
+           )
+
+    assert match?(
+             {:validation_failure, {:bad_argument, _}},
+             @command.validate(
+               ["value", "secret"],
+               Map.merge(context[:opts], %{cipher: :funny_cipher, hash: :funny_hash})
+             )
+           )
+
+    assert :ok == @command.validate(["value", "secret"], context[:opts])
+  end
+
+  test "validate: number of iterations must greater than 0", context do
+    assert match?(
+             {:validation_failure, {:bad_argument, _}},
+             @command.validate(["value", "secret"], Map.merge(context[:opts], %{iterations: 0}))
+           )
+
+    assert match?(
+             {:validation_failure, {:bad_argument, _}},
+             @command.validate(["value", "secret"], Map.merge(context[:opts], %{iterations: -1}))
+           )
+
+    assert :ok == @command.validate(["value", "secret"], context[:opts])
+  end
+end