Launcher, app/base, sentry, update service

internal/updater/locker_test.go

@@ -0,0 +1,67 @@
+// Copyright (c) 2020 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package updater
+
+import (
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/pkg/errors"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLocker(t *testing.T) {
+	l := newLocker()
+
+	assert.NoError(t, l.doOnce(func() error {
+		return nil
+	}))
+}
+
+func TestLockerForwardsErrors(t *testing.T) {
+	l := newLocker()
+
+	assert.Error(t, l.doOnce(func() error {
+		return errors.New("something went wrong")
+	}))
+}
+
+func TestLockerAllowsOnlyOneOperation(t *testing.T) {
+	l := newLocker()
+
+	wg := &sync.WaitGroup{}
+
+	wg.Add(1)
+	go func() {
+		assert.NoError(t, l.doOnce(func() error {
+			time.Sleep(2 * time.Second)
+			wg.Done()
+			return nil
+		}))
+	}()
+
+	time.Sleep(time.Second)
+
+	err := l.doOnce(func() error { return nil })
+	if assert.Error(t, err) {
+		assert.Equal(t, ErrOperationOngoing, err)
+	}
+
+	wg.Wait()
+}