Files
proton-bridge/internal/imap/cache/cache_test.go
2021-01-04 11:55:15 +01:00

99 lines
2.9 KiB
Go

// Copyright (c) 2021 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 cache
import (
"fmt"
"testing"
"time"
bckMsg "github.com/ProtonMail/proton-bridge/pkg/message"
"github.com/stretchr/testify/require"
)
var bs = &bckMsg.BodyStructure{} //nolint[gochecknoglobals]
const testUID = "testmsg"
func TestSaveAndLoad(t *testing.T) {
msg := []byte("Test message")
SaveMail(testUID, msg, bs)
require.Equal(t, mailCache[testUID].data, msg)
reader, _ := LoadMail(testUID)
require.Equal(t, reader.Len(), len(msg))
stored := make([]byte, len(msg))
_, _ = reader.Read(stored)
require.Equal(t, stored, msg)
}
func TestMissing(t *testing.T) {
reader, _ := LoadMail("non-existing")
require.Equal(t, reader.Len(), 0)
}
func TestClearOld(t *testing.T) {
cacheTimeLimit = 10
msg := []byte("Test message")
SaveMail(testUID, msg, bs)
time.Sleep(100 * time.Millisecond)
reader, _ := LoadMail(testUID)
require.Equal(t, reader.Len(), 0)
}
func TestClearBig(t *testing.T) {
r := require.New(t)
wantMessage := []byte("Test message")
wantCacheSize := 3
nTestMessages := wantCacheSize * wantCacheSize
cacheSizeLimit = wantCacheSize*len(wantMessage) + 1
cacheTimeLimit = int64(1 << 20) // be sure the message will survive
// It should never have more than nSize items.
for i := 0; i < nTestMessages; i++ {
time.Sleep(1 * time.Millisecond)
SaveMail(fmt.Sprintf("%s%d", testUID, i), wantMessage, bs)
r.LessOrEqual(len(mailCache), wantCacheSize, "cache too big when %d", i)
}
// Check that the oldest are deleted first.
for i := 0; i < nTestMessages; i++ {
iUID := fmt.Sprintf("%s%d", testUID, i)
reader, _ := LoadMail(iUID)
mail := mailCache[iUID]
if i < (nTestMessages - wantCacheSize) {
r.Zero(reader.Len(), "LoadMail should return empty, but have %s for %s time %d ", string(mail.data), iUID, mail.key.Timestamp)
} else {
stored := make([]byte, len(wantMessage))
_, err := reader.Read(stored)
r.NoError(err)
r.Equal(wantMessage, stored, "LoadMail returned wrong message: %s for %s time %d", stored, iUID, mail.key.Timestamp)
}
}
}
func TestConcurency(t *testing.T) {
msg := []byte("Test message")
for i := 0; i < 10; i++ {
go SaveMail(fmt.Sprintf("%s%d", testUID, i), msg, bs)
}
}