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mongodb_test.go
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mongodb_test.go
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package mongodb
import (
"bytes"
"context"
"fmt"
"log"
"github.com/golang-migrate/migrate/v4"
"io"
"os"
"strconv"
"testing"
"time"
)
import (
"github.com/dhui/dktest"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
)
import (
dt "github.com/golang-migrate/migrate/v4/database/testing"
"github.com/golang-migrate/migrate/v4/dktesting"
_ "github.com/golang-migrate/migrate/v4/source/file"
)
var (
opts = dktest.Options{PortRequired: true, ReadyFunc: isReady}
// Supported versions: https://www.mongodb.com/support-policy
specs = []dktesting.ContainerSpec{
{ImageName: "mongo:3.4", Options: opts},
{ImageName: "mongo:3.6", Options: opts},
{ImageName: "mongo:4.0", Options: opts},
{ImageName: "mongo:4.2", Options: opts},
}
)
func mongoConnectionString(host, port string) string {
// there is connect option for excluding serverConnection algorithm
// it's let avoid errors with mongo replica set connection in docker container
return fmt.Sprintf("mongodb://%s:%s/testMigration?connect=direct", host, port)
}
func isReady(ctx context.Context, c dktest.ContainerInfo) bool {
ip, port, err := c.FirstPort()
if err != nil {
return false
}
client, err := mongo.Connect(ctx, options.Client().ApplyURI(mongoConnectionString(ip, port)))
if err != nil {
return false
}
defer func() {
if err := client.Disconnect(ctx); err != nil {
log.Println("close error:", err)
}
}()
if err = client.Ping(ctx, nil); err != nil {
switch err {
case io.EOF:
return false
default:
log.Println(err)
}
return false
}
return true
}
func Test(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := mongoConnectionString(ip, port)
p := &Mongo{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
dt.TestNilVersion(t, d)
dt.TestLockAndUnlock(t, d)
dt.TestRun(t, d, bytes.NewReader([]byte(`[{"insert":"hello","documents":[{"wild":"world"}]}]`)))
dt.TestSetVersion(t, d)
dt.TestDrop(t, d)
})
}
func TestMigrate(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := mongoConnectionString(ip, port)
p := &Mongo{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
m, err := migrate.NewWithDatabaseInstance("file://./examples/migrations", "", d)
if err != nil {
t.Fatal(err)
}
dt.TestMigrate(t, m)
})
}
func TestWithAuth(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := mongoConnectionString(ip, port)
p := &Mongo{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
createUserCMD := []byte(`[{"createUser":"deminem","pwd":"gogo","roles":[{"role":"readWrite","db":"testMigration"}]}]`)
err = d.Run(bytes.NewReader(createUserCMD))
if err != nil {
t.Fatal(err)
}
testcases := []struct {
name string
connectUri string
isErrorExpected bool
}{
{"right auth data", "mongodb://deminem:gogo@%s:%v/testMigration", false},
{"wrong auth data", "mongodb://wrong:auth@%s:%v/testMigration", true},
}
for _, tcase := range testcases {
t.Run(tcase.name, func(t *testing.T) {
mc := &Mongo{}
d, err := mc.Open(fmt.Sprintf(tcase.connectUri, ip, port))
if err == nil {
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
}
switch {
case tcase.isErrorExpected && err == nil:
t.Fatalf("no error when expected")
case !tcase.isErrorExpected && err != nil:
t.Fatalf("unexpected error: %v", err)
}
})
}
})
}
func TestLockWorks(t *testing.T) {
dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
addr := mongoConnectionString(ip, port)
p := &Mongo{}
d, err := p.Open(addr)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
dt.TestRun(t, d, bytes.NewReader([]byte(`[{"insert":"hello","documents":[{"wild":"world"}]}]`)))
mc := d.(*Mongo)
err = mc.Lock()
if err != nil {
t.Fatal(err)
}
err = mc.Unlock()
if err != nil {
t.Fatal(err)
}
err = mc.Lock()
if err != nil {
t.Fatal(err)
}
err = mc.Unlock()
if err != nil {
t.Fatal(err)
}
// enable locking,
//try to hit a lock conflict
mc.config.Locking.Enabled = true
mc.config.Locking.Timeout = 1
err = mc.Lock()
if err != nil {
t.Fatal(err)
}
err = mc.Lock()
if err == nil {
t.Fatal("should have failed, mongo should be locked already")
}
})
}
func TestTransaction(t *testing.T) {
transactionSpecs := []dktesting.ContainerSpec{
{ImageName: "mongo:4", Options: dktest.Options{PortRequired: true, ReadyFunc: isReady,
Cmd: []string{"mongod", "--bind_ip_all", "--replSet", "rs0"}}},
}
dktesting.ParallelTest(t, transactionSpecs, func(t *testing.T, c dktest.ContainerInfo) {
ip, port, err := c.FirstPort()
if err != nil {
t.Fatal(err)
}
client, err := mongo.Connect(context.TODO(), options.Client().ApplyURI(mongoConnectionString(ip, port)))
if err != nil {
t.Fatal(err)
}
err = client.Ping(context.TODO(), nil)
if err != nil {
t.Fatal(err)
}
//rs.initiate()
err = client.Database("admin").RunCommand(context.TODO(), bson.D{bson.E{Key: "replSetInitiate", Value: bson.D{}}}).Err()
if err != nil {
t.Fatal(err)
}
err = waitForReplicaInit(client)
if err != nil {
t.Fatal(err)
}
d, err := WithInstance(client, &Config{
DatabaseName: "testMigration",
})
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
//We have to create collection
//transactions don't support operations with creating new dbs, collections
//Unique index need for checking transaction aborting
insertCMD := []byte(`[
{"create":"hello"},
{"createIndexes": "hello",
"indexes": [{
"key": {
"wild": 1
},
"name": "unique_wild",
"unique": true,
"background": true
}]
}]`)
err = d.Run(bytes.NewReader(insertCMD))
if err != nil {
t.Fatal(err)
}
testcases := []struct {
name string
cmds []byte
documentsCount int64
isErrorExpected bool
}{
{
name: "success transaction",
cmds: []byte(`[{"insert":"hello","documents":[
{"wild":"world"},
{"wild":"west"},
{"wild":"natural"}
]
}]`),
documentsCount: 3,
isErrorExpected: false,
},
{
name: "failure transaction",
//transaction have to be failure - duplicate unique key wild:west
//none of the documents should be added
cmds: []byte(`[{"insert":"hello","documents":[{"wild":"flower"}]},
{"insert":"hello","documents":[
{"wild":"cat"},
{"wild":"west"}
]
}]`),
documentsCount: 3,
isErrorExpected: true,
},
}
for _, tcase := range testcases {
t.Run(tcase.name, func(t *testing.T) {
client, err := mongo.Connect(context.TODO(), options.Client().ApplyURI(mongoConnectionString(ip, port)))
if err != nil {
t.Fatal(err)
}
err = client.Ping(context.TODO(), nil)
if err != nil {
t.Fatal(err)
}
d, err := WithInstance(client, &Config{
DatabaseName: "testMigration",
TransactionMode: true,
})
if err != nil {
t.Fatal(err)
}
defer func() {
if err := d.Close(); err != nil {
t.Error(err)
}
}()
runErr := d.Run(bytes.NewReader(tcase.cmds))
if runErr != nil {
if !tcase.isErrorExpected {
t.Fatal(runErr)
}
}
documentsCount, err := client.Database("testMigration").Collection("hello").CountDocuments(context.TODO(), bson.M{})
if err != nil {
t.Fatal(err)
}
if tcase.documentsCount != documentsCount {
t.Fatalf("expected %d and actual %d documents count not equal. run migration error:%s", tcase.documentsCount, documentsCount, runErr)
}
})
}
})
}
type isMaster struct {
IsMaster bool `bson:"ismaster"`
}
func waitForReplicaInit(client *mongo.Client) error {
ticker := time.NewTicker(time.Second * 1)
defer ticker.Stop()
timeout, err := strconv.Atoi(os.Getenv("MIGRATE_TEST_MONGO_REPLICA_SET_INIT_TIMEOUT"))
if err != nil {
timeout = 30
}
timeoutTimer := time.NewTimer(time.Duration(timeout) * time.Second)
defer timeoutTimer.Stop()
for {
select {
case <-ticker.C:
var status isMaster
//Check that node is primary because
//during replica set initialization, the first node first becomes a secondary and then becomes the primary
//should consider that initialization is completed only after the node has become the primary
result := client.Database("admin").RunCommand(context.TODO(), bson.D{bson.E{Key: "isMaster", Value: 1}})
r, err := result.DecodeBytes()
if err != nil {
return err
}
err = bson.Unmarshal(r, &status)
if err != nil {
return err
}
if status.IsMaster {
return nil
}
case <-timeoutTimer.C:
return fmt.Errorf("replica init timeout")
}
}
}