feat(BRIDGE-116): add command-line switches to enable/disable keychain check on macOS.

internal/vault/keychain_settings_test.go

@@ -0,0 +1,58 @@
+// Copyright (c) 2024 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
+
+package vault
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestKeychainSettingsIO(t *testing.T) {
+	dir := t.TempDir()
+
+	// test loading non existing file. no error but loads defaults.
+	settings, err := LoadKeychainSettings(dir)
+	require.NoError(t, err)
+	require.Equal(t, settings, KeychainSettings{})
+
+	// test file creation
+	settings.Helper = "dummy1"
+	settings.DisableTest = true
+	require.NoError(t, settings.Save(dir))
+
+	// test reading existing file
+	readBack, err := LoadKeychainSettings(dir)
+	require.NoError(t, err)
+	require.Equal(t, settings, readBack)
+
+	// test file overwrite and read back
+	settings.Helper = "dummy2"
+	require.NoError(t, settings.Save(dir))
+	readBack, err = LoadKeychainSettings(dir)
+	require.NoError(t, err)
+	require.Equal(t, settings, readBack)
+
+	// test error on invalid content
+	settingsFilePath := filepath.Join(dir, keychainSettingsFileName)
+	require.NoError(t, os.WriteFile(settingsFilePath, []byte("][INVALID"), 0o600))
+	_, err = LoadKeychainSettings(dir)
+	require.Error(t, err)
+}