minio/cmd/lock-rest-server-common_test.go

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/*
* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"os"
"reflect"
"sync"
"testing"
"time"
)
// Helper function to create a lock server for testing
func createLockTestServer(t *testing.T) (string, *lockRESTServer, string) {
obj, fsDir, err := prepareFS()
if err != nil {
t.Fatal(err)
}
if err = newTestConfig(globalMinioDefaultRegion, obj); err != nil {
t.Fatalf("unable initialize config file, %s", err)
}
locker := &lockRESTServer{
ll: &localLocker{
mutex: sync.Mutex{},
serviceEndpoint: "rpc-path",
lockMap: make(map[string][]lockRequesterInfo),
},
}
creds := globalServerConfig.GetCredential()
token, err := authenticateNode(creds.AccessKey, creds.SecretKey)
if err != nil {
t.Fatal(err)
}
return fsDir, locker, token
}
// Test function to remove lock entries from map only in case they still exist based on name & uid combination
func TestLockRpcServerRemoveEntryIfExists(t *testing.T) {
testPath, locker, _ := createLockTestServer(t)
defer os.RemoveAll(testPath)
lri := lockRequesterInfo{
Writer: false,
Node: "host",
ServiceEndpoint: "rpc-path",
UID: "0123-4567",
Timestamp: UTCNow(),
TimeLastCheck: UTCNow(),
}
nlrip := nameLockRequesterInfoPair{name: "name", lri: lri}
// first test by simulating item has already been deleted
locker.ll.removeEntryIfExists(nlrip)
{
gotLri := locker.ll.lockMap["name"]
expectedLri := []lockRequesterInfo(nil)
if !reflect.DeepEqual(expectedLri, gotLri) {
t.Errorf("Expected %#v, got %#v", expectedLri, gotLri)
}
}
// then test normal deletion
locker.ll.lockMap["name"] = []lockRequesterInfo{lri} // add item
locker.ll.removeEntryIfExists(nlrip)
{
gotLri := locker.ll.lockMap["name"]
expectedLri := []lockRequesterInfo(nil)
if !reflect.DeepEqual(expectedLri, gotLri) {
t.Errorf("Expected %#v, got %#v", expectedLri, gotLri)
}
}
}
// Test function to remove lock entries from map based on name & uid combination
func TestLockRpcServerRemoveEntry(t *testing.T) {
testPath, locker, _ := createLockTestServer(t)
defer os.RemoveAll(testPath)
lockRequesterInfo1 := lockRequesterInfo{
Writer: true,
Node: "host",
ServiceEndpoint: "rpc-path",
UID: "0123-4567",
Timestamp: UTCNow(),
TimeLastCheck: UTCNow(),
}
lockRequesterInfo2 := lockRequesterInfo{
Writer: true,
Node: "host",
ServiceEndpoint: "rpc-path",
UID: "89ab-cdef",
Timestamp: UTCNow(),
TimeLastCheck: UTCNow(),
}
locker.ll.lockMap["name"] = []lockRequesterInfo{
lockRequesterInfo1,
lockRequesterInfo2,
}
lri := locker.ll.lockMap["name"]
// test unknown uid
if locker.ll.removeEntry("name", "unknown-uid", &lri) {
t.Errorf("Expected %#v, got %#v", false, true)
}
if !locker.ll.removeEntry("name", "0123-4567", &lri) {
t.Errorf("Expected %#v, got %#v", true, false)
} else {
gotLri := locker.ll.lockMap["name"]
expectedLri := []lockRequesterInfo{lockRequesterInfo2}
if !reflect.DeepEqual(expectedLri, gotLri) {
t.Errorf("Expected %#v, got %#v", expectedLri, gotLri)
}
}
if !locker.ll.removeEntry("name", "89ab-cdef", &lri) {
t.Errorf("Expected %#v, got %#v", true, false)
} else {
gotLri := locker.ll.lockMap["name"]
expectedLri := []lockRequesterInfo(nil)
if !reflect.DeepEqual(expectedLri, gotLri) {
t.Errorf("Expected %#v, got %#v", expectedLri, gotLri)
}
}
}
// Tests function returning long lived locks.
func TestLockRpcServerGetLongLivedLocks(t *testing.T) {
ut := UTCNow()
// Collection of test cases for verifying returning valid long lived locks.
testCases := []struct {
lockMap map[string][]lockRequesterInfo
lockInterval time.Duration
expectedNSLR []nameLockRequesterInfoPair
}{
// Testcase - 1 validates long lived locks, returns empty list.
{
lockMap: map[string][]lockRequesterInfo{
"test": {{
Writer: true,
Node: "10.1.10.21",
ServiceEndpoint: "/lock/mnt/disk1",
UID: "10000112",
Timestamp: ut,
TimeLastCheck: ut,
}},
},
lockInterval: 1 * time.Minute,
expectedNSLR: []nameLockRequesterInfoPair{},
},
// Testcase - 2 validates long lived locks, returns at least one list.
{
lockMap: map[string][]lockRequesterInfo{
"test": {{
Writer: true,
Node: "10.1.10.21",
ServiceEndpoint: "/lock/mnt/disk1",
UID: "10000112",
Timestamp: ut,
TimeLastCheck: ut.Add(-2 * time.Minute),
}},
},
lockInterval: 1 * time.Minute,
expectedNSLR: []nameLockRequesterInfoPair{
{
name: "test",
lri: lockRequesterInfo{
Writer: true,
Node: "10.1.10.21",
ServiceEndpoint: "/lock/mnt/disk1",
UID: "10000112",
Timestamp: ut,
TimeLastCheck: ut.Add(-2 * time.Minute),
},
},
},
},
}
// Validates all test cases here.
for i, testCase := range testCases {
nsLR := getLongLivedLocks(testCase.lockMap, testCase.lockInterval)
if !reflect.DeepEqual(testCase.expectedNSLR, nsLR) {
t.Errorf("Test %d: Expected %#v, got %#v", i+1, testCase.expectedNSLR, nsLR)
}
}
}