forked from mongodb/mongo-go-driver
/
sessions_test.go
648 lines (563 loc) · 24.1 KB
/
sessions_test.go
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// Copyright (C) MongoDB, Inc. 2017-present.
//
// 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
package integration
import (
"bytes"
"context"
"fmt"
"reflect"
"sync"
"testing"
"time"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/internal"
"go.mongodb.org/mongo-driver/internal/testutil/assert"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/integration/mtest"
"go.mongodb.org/mongo-driver/mongo/options"
"go.mongodb.org/mongo-driver/mongo/readpref"
"go.mongodb.org/mongo-driver/mongo/writeconcern"
"go.mongodb.org/mongo-driver/x/mongo/driver/session"
"golang.org/x/sync/errgroup"
)
func TestSessionPool(t *testing.T) {
mt := mtest.New(t, mtest.NewOptions().MinServerVersion("3.6").CreateClient(false))
defer mt.Close()
mt.Run("pool LIFO", func(mt *mtest.T) {
aSess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
bSess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
// end the sessions to return them to the pool
aSess.EndSession(context.Background())
bSess.EndSession(context.Background())
firstSess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
defer firstSess.EndSession(context.Background())
want := bSess.ID()
got := firstSess.ID()
assert.True(mt, sessionIDsEqual(mt, want, got), "expected session ID %v, got %v", want, got)
secondSess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
defer secondSess.EndSession(context.Background())
want = aSess.ID()
got = secondSess.ID()
assert.True(mt, sessionIDsEqual(mt, want, got), "expected session ID %v, got %v", want, got)
})
mt.Run("last use time updated", func(mt *mtest.T) {
sess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
defer sess.EndSession(context.Background())
initialLastUsedTime := getSessionLastUsedTime(mt, sess)
err = mongo.WithSession(context.Background(), sess, func(sc mongo.SessionContext) error {
return mt.Client.Ping(sc, readpref.Primary())
})
assert.Nil(mt, err, "WithSession error: %v", err)
newLastUsedTime := getSessionLastUsedTime(mt, sess)
assert.True(mt, newLastUsedTime.After(initialLastUsedTime),
"last used time %s is not after the initial last used time %s", newLastUsedTime, initialLastUsedTime)
})
}
func TestSessions(t *testing.T) {
mtOpts := mtest.NewOptions().MinServerVersion("3.6").Topologies(mtest.ReplicaSet, mtest.Sharded).
CreateClient(false)
mt := mtest.New(t, mtOpts)
hosts := options.Client().ApplyURI(mtest.ClusterURI()).Hosts
// Pin to a single mongos so heartbeats/handshakes to other mongoses won't cause errors.
clusterTimeOpts := mtest.NewOptions().
ClientOptions(options.Client().SetHeartbeatInterval(50 * time.Second)).
ClientType(mtest.Pinned).
CreateClient(false)
mt.RunOpts("cluster time", clusterTimeOpts, func(mt *mtest.T) {
// $clusterTime included in commands
serverStatus := sessionFunction{"server status", "database", "RunCommand", []interface{}{bson.D{{"serverStatus", 1}}}}
insert := sessionFunction{"insert one", "collection", "InsertOne", []interface{}{bson.D{{"x", 1}}}}
agg := sessionFunction{"aggregate", "collection", "Aggregate", []interface{}{mongo.Pipeline{}}}
find := sessionFunction{"find", "collection", "Find", []interface{}{bson.D{}}}
sessionFunctions := []sessionFunction{serverStatus, insert, agg, find}
for _, sf := range sessionFunctions {
mt.Run(sf.name, func(mt *mtest.T) {
err := sf.execute(mt, nil)
assert.Nil(mt, err, "%v error: %v", sf.name, err)
// assert $clusterTime was sent to server
started := mt.GetStartedEvent()
assert.NotNil(mt, started, "expected started event, got nil")
_, err = started.Command.LookupErr("$clusterTime")
assert.Nil(mt, err, "$clusterTime not sent")
// record response cluster time
succeeded := mt.GetSucceededEvent()
assert.NotNil(mt, succeeded, "expected succeeded event, got nil")
replyClusterTimeVal, err := succeeded.Reply.LookupErr("$clusterTime")
assert.Nil(mt, err, "$clusterTime not found in response")
// call function again
err = sf.execute(mt, nil)
assert.Nil(mt, err, "%v error: %v", sf.name, err)
// find cluster time sent to server and assert it is the same as the one in the previous response
sentClusterTimeVal, err := mt.GetStartedEvent().Command.LookupErr("$clusterTime")
assert.Nil(mt, err, "$clusterTime not sent")
replyClusterTimeDoc := replyClusterTimeVal.Document()
sentClusterTimeDoc := sentClusterTimeVal.Document()
assert.Equal(mt, replyClusterTimeDoc, sentClusterTimeDoc,
"expected cluster time %v, got %v", replyClusterTimeDoc, sentClusterTimeDoc)
})
}
})
clusterTimeHandshakeOpts := options.Client().
SetHosts(hosts[:1]). // Prevent handshakes to other hosts from updating the cluster time.
SetDirect(true).
SetHeartbeatInterval(50 * time.Second) // Prevent extra heartbeats from updating the cluster time.
clusterTimeHandshakeMtOpts := mtest.NewOptions().
ClientType(mtest.Proxy).
ClientOptions(clusterTimeHandshakeOpts).
CreateCollection(false).
SSL(false) // The proxy dialer doesn't work for SSL connections.
mt.RunOpts("cluster time is updated from handshakes", clusterTimeHandshakeMtOpts, func(mt *mtest.T) {
err := mt.Client.Ping(context.Background(), mtest.PrimaryRp)
assert.Nil(mt, err, "Ping error: %v", err)
// Assert that all sent commands (including handshake commands) include a "$clusterTime" in
// the command document.
for _, pair := range mt.GetProxiedMessages() {
_, err := pair.Sent.Command.LookupErr("$clusterTime")
hasClusterTime := err == nil
switch pair.CommandName {
// If the command is either legacy hello or "hello" (used as the first message in any
// handshake or the checks from the heartbeat or RTT monitors), expect that there is no
// "$clusterTime" because the connection doesn't know the server's wire version yet so
// it doesn't know if the connection supports "$clusterTime".
case internal.LegacyHello, "hello":
assert.False(
mt,
hasClusterTime,
"expected no $clusterTime field in command %s",
pair.Sent.Command)
// If the command is anything else (including other handshake commands), assert that the
// command includes "$clusterTime".
default:
assert.True(
mt,
hasClusterTime,
"expected $clusterTime field in in Ping command %s",
pair.Sent.Command)
}
}
})
mt.RunOpts("explicit implicit session arguments", noClientOpts, func(mt *mtest.T) {
// lsid is included in commands with explicit and implicit sessions
sessionFunctions := createFunctionsSlice()
for _, sf := range sessionFunctions {
mt.Run(sf.name, func(mt *mtest.T) {
// explicit session
sess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
defer sess.EndSession(context.Background())
mt.ClearEvents()
_ = sf.execute(mt, sess) // don't check error because we only care about lsid
_, wantID := sess.ID().Lookup("id").Binary()
gotID := extractSentSessionID(mt)
assert.True(mt, bytes.Equal(wantID, gotID), "expected session ID %v, got %v", wantID, gotID)
// implicit session
_ = sf.execute(mt, nil)
gotID = extractSentSessionID(mt)
assert.NotNil(mt, gotID, "expected lsid, got nil")
})
}
})
mt.Run("wrong client", func(mt *mtest.T) {
// a session can only be used in commands associated with the client that created it
sessionFunctions := createFunctionsSlice()
sess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
defer sess.EndSession(context.Background())
for _, sf := range sessionFunctions {
mt.Run(sf.name, func(mt *mtest.T) {
err = sf.execute(mt, sess)
assert.Equal(mt, mongo.ErrWrongClient, err, "expected error %v, got %v", mongo.ErrWrongClient, err)
})
}
})
mt.RunOpts("ended session", noClientOpts, func(mt *mtest.T) {
// an ended session cannot be used in commands
sessionFunctions := createFunctionsSlice()
for _, sf := range sessionFunctions {
mt.Run(sf.name, func(mt *mtest.T) {
sess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
sess.EndSession(context.Background())
err = sf.execute(mt, sess)
assert.Equal(mt, session.ErrSessionEnded, err, "expected error %v, got %v", session.ErrSessionEnded, err)
})
}
})
mt.Run("implicit session returned", func(mt *mtest.T) {
// implicit sessions are returned to the server session pool
doc := bson.D{{"x", 1}}
_, err := mt.Coll.InsertOne(context.Background(), doc)
assert.Nil(mt, err, "InsertOne error: %v", err)
_, err = mt.Coll.InsertOne(context.Background(), doc)
assert.Nil(mt, err, "InsertOne error: %v", err)
// create a cursor that will hold onto an implicit session and record the sent session ID
mt.ClearEvents()
cursor, err := mt.Coll.Find(context.Background(), bson.D{})
assert.Nil(mt, err, "Find error: %v", err)
findID := extractSentSessionID(mt)
assert.True(mt, cursor.Next(context.Background()), "expected Next true, got false")
// execute another operation and verify the find session ID was reused
_, err = mt.Coll.DeleteOne(context.Background(), bson.D{})
assert.Nil(mt, err, "DeleteOne error: %v", err)
deleteID := extractSentSessionID(mt)
assert.Equal(mt, findID, deleteID, "expected session ID %v, got %v", findID, deleteID)
})
mt.Run("implicit session returned from getMore", func(mt *mtest.T) {
// Client-side cursor that exhausts the results after a getMore immediately returns the implicit session to the pool.
var docs []interface{}
for i := 0; i < 5; i++ {
docs = append(docs, bson.D{{"x", i}})
}
_, err := mt.Coll.InsertMany(context.Background(), docs)
assert.Nil(mt, err, "InsertMany error: %v", err)
// run a find that will hold onto the implicit session and record the session ID
mt.ClearEvents()
cursor, err := mt.Coll.Find(context.Background(), bson.D{}, options.Find().SetBatchSize(3))
assert.Nil(mt, err, "Find error: %v", err)
findID := extractSentSessionID(mt)
// iterate past 4 documents, forcing a getMore. session should be returned to pool after getMore
for i := 0; i < 4; i++ {
assert.True(mt, cursor.Next(context.Background()), "Next returned false on iteration %v", i)
}
// execute another operation and verify the find session ID was reused
_, err = mt.Coll.DeleteOne(context.Background(), bson.D{})
assert.Nil(mt, err, "DeleteOne error: %v", err)
deleteID := extractSentSessionID(mt)
assert.Equal(mt, findID, deleteID, "expected session ID %v, got %v", findID, deleteID)
})
mt.Run("find and getMore use same ID", func(mt *mtest.T) {
var docs []interface{}
for i := 0; i < 3; i++ {
docs = append(docs, bson.D{{"x", i}})
}
_, err := mt.Coll.InsertMany(context.Background(), docs)
assert.Nil(mt, err, "InsertMany error: %v", err)
// run a find that will hold onto an implicit session and record the session ID
mt.ClearEvents()
cursor, err := mt.Coll.Find(context.Background(), bson.D{}, options.Find().SetBatchSize(2))
assert.Nil(mt, err, "Find error: %v", err)
findID := extractSentSessionID(mt)
assert.NotNil(mt, findID, "expected session ID for find, got nil")
// iterate over all documents and record the session ID of the getMore
for i := 0; i < 3; i++ {
assert.True(mt, cursor.Next(context.Background()), "Next returned false on iteration %v", i)
}
getMoreID := extractSentSessionID(mt)
assert.Equal(mt, findID, getMoreID, "expected session ID %v, got %v", findID, getMoreID)
})
mt.Run("imperative API", func(mt *mtest.T) {
mt.Run("round trip Session object", func(mt *mtest.T) {
// Rountrip a Session object through NewSessionContext/ContextFromSession and assert that it is correctly
// stored/retrieved.
sess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
defer sess.EndSession(context.Background())
sessCtx := mongo.NewSessionContext(context.Background(), sess)
assert.Equal(mt, sess.ID(), sessCtx.ID(), "expected Session ID %v, got %v", sess.ID(), sessCtx.ID())
gotSess := mongo.SessionFromContext(sessCtx)
assert.NotNil(mt, gotSess, "expected SessionFromContext to return non-nil value, got nil")
assert.Equal(mt, sess.ID(), gotSess.ID(), "expected Session ID %v, got %v", sess.ID(), gotSess.ID())
})
txnOpts := mtest.NewOptions().RunOn(
mtest.RunOnBlock{Topology: []mtest.TopologyKind{mtest.ReplicaSet}, MinServerVersion: "4.0"},
mtest.RunOnBlock{Topology: []mtest.TopologyKind{mtest.Sharded}, MinServerVersion: "4.2"},
)
mt.RunOpts("run transaction", txnOpts, func(mt *mtest.T) {
// Test that the imperative sessions API can be used to run a transaction.
createSessionContext := func(mt *mtest.T) mongo.SessionContext {
sess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
return mongo.NewSessionContext(context.Background(), sess)
}
sessCtx := createSessionContext(mt)
sess := mongo.SessionFromContext(sessCtx)
assert.NotNil(mt, sess, "expected SessionFromContext to return non-nil value, got nil")
defer sess.EndSession(context.Background())
err := sess.StartTransaction()
assert.Nil(mt, err, "StartTransaction error: %v", err)
numDocs := 2
for i := 0; i < numDocs; i++ {
_, err = mt.Coll.InsertOne(sessCtx, bson.D{{"x", 1}})
assert.Nil(mt, err, "InsertOne error at index %d: %v", i, err)
}
// Assert that the collection count is 0 before committing and numDocs after. This tests that the InsertOne
// calls were actually executed in the transaction because the pre-commit count does not include them.
assertCollectionCount(mt, 0)
err = sess.CommitTransaction(sessCtx)
assert.Nil(mt, err, "CommitTransaction error: %v", err)
assertCollectionCount(mt, int64(numDocs))
})
})
unackWcOpts := options.Collection().SetWriteConcern(writeconcern.New(writeconcern.W(0)))
mt.RunOpts("unacknowledged write", mtest.NewOptions().CollectionOptions(unackWcOpts), func(mt *mtest.T) {
// unacknowledged write during a session should result in an error
sess, err := mt.Client.StartSession()
assert.Nil(mt, err, "StartSession error: %v", err)
defer sess.EndSession(context.Background())
err = mongo.WithSession(context.Background(), sess, func(sc mongo.SessionContext) error {
_, err := mt.Coll.InsertOne(sc, bson.D{{"x", 1}})
return err
})
assert.Equal(mt, err, mongo.ErrUnacknowledgedWrite,
"expected ErrUnacknowledgedWrite on unacknowledged write in session, got %v", err)
})
sessallocopts := mtest.NewOptions().ClientOptions(options.Client().SetMaxPoolSize(1).SetRetryWrites(true).
SetHosts(hosts[:1]))
mt.RunOpts("14. implicit session allocation", sessallocopts, func(mt *mtest.T) {
ops := map[string]func(ctx context.Context) error{
"insert": func(ctx context.Context) error {
_, err := mt.Coll.InsertOne(ctx, bson.D{})
return err
},
"delete": func(ctx context.Context) error {
_, err := mt.Coll.DeleteOne(ctx, bson.D{})
return err
},
"update": func(ctx context.Context) error {
_, err := mt.Coll.UpdateOne(ctx, bson.D{}, bson.D{{"$set", bson.D{{"a", 1}}}})
return err
},
"bulkWrite": func(ctx context.Context) error {
model := mongo.NewUpdateOneModel().
SetFilter(bson.D{}).
SetUpdate(bson.D{{"$set", bson.D{{"a", 1}}}})
_, err := mt.Coll.BulkWrite(ctx, []mongo.WriteModel{model})
return err
},
"findOneAndDelete": func(ctx context.Context) error {
result := mt.Coll.FindOneAndDelete(ctx, bson.D{})
if err := result.Err(); err != nil && err != mongo.ErrNoDocuments {
return err
}
return nil
},
"findOneAndUpdate": func(ctx context.Context) error {
result := mt.Coll.FindOneAndUpdate(ctx, bson.D{},
bson.D{{"$set", bson.D{{"a", 1}}}})
if err := result.Err(); err != nil && err != mongo.ErrNoDocuments {
return err
}
return nil
},
"findOneAndReplace": func(ctx context.Context) error {
result := mt.Coll.FindOneAndReplace(ctx, bson.D{}, bson.D{{"a", 1}})
if err := result.Err(); err != nil && err != mongo.ErrNoDocuments {
return err
}
return nil
},
"find": func(ctx context.Context) error {
cursor, err := mt.Coll.Find(ctx, bson.D{})
if err != nil {
return err
}
return cursor.All(ctx, &bson.A{})
},
}
// maintainedOneSession asserts that exactly one session is used for all operations at least once
// across the retries of this test.
var maintainedOneSession bool
// minimumSessionCount asserts the least amount of sessions used over all the retries of the
// operations. For example, if we retry 5 times we could result in session use { 1, 2, 1, 1, 6 }. In
// this case, minimumSessionCount should be 1.
var minimumSessionCount int
// limitedSessionUse asserts that the number of allocated sessions is strictly less than the number of
// concurrent operations in every retry of this test. In this instance it would be less than (but NOT
// equal to the number of operations).
limitedSessionUse := true
retrycount := 5
for i := 1; i <= retrycount; i++ {
errs, ctx := errgroup.WithContext(context.Background())
// Execute the ops list concurrently.
for cmd, op := range ops {
op := op
cmd := cmd
errs.Go(func() error {
if err := op(ctx); err != nil {
return fmt.Errorf("error running %s operation: %v", cmd, err)
}
return nil
})
}
err := errs.Wait()
assert.Nil(mt, err, "expected no error, got: %v", err)
// Get all started events and collect them by the session ID.
set := make(map[string]bool)
for _, event := range mt.GetAllStartedEvents() {
lsid := event.Command.Lookup("lsid")
set[lsid.String()] = true
}
setSize := len(set)
if setSize == 1 {
maintainedOneSession = true
} else if setSize < minimumSessionCount || minimumSessionCount == 0 {
// record the minimum number of sessions we used over all retries.
minimumSessionCount = setSize
}
if setSize >= len(ops) {
limitedSessionUse = false
}
}
oneSessMsg := "expected one session across all %v operations for at least 1/%v retries, got: %v"
assert.True(mt, maintainedOneSession, oneSessMsg, len(ops), retrycount, minimumSessionCount)
limitedSessMsg := "expected session count to be less than the number of operations: %v"
assert.True(mt, limitedSessionUse, limitedSessMsg, len(ops))
})
// Regression test for GODRIVER-2533. Note that this test assumes the race
// detector is enabled (GODRIVER-2072).
mt.Run("NumberSessionsInProgress data race", func(mt *mtest.T) {
// Use two goroutines to execute a few simultaneous runs of NumberSessionsInProgress
// and a basic collection operation (CountDocuments).
var wg sync.WaitGroup
wg.Add(2)
go func() {
defer wg.Done()
for i := 0; i < 100; i++ {
time.Sleep(100 * time.Microsecond)
_ = mt.Client.NumberSessionsInProgress()
}
}()
go func() {
defer wg.Done()
for i := 0; i < 100; i++ {
time.Sleep(100 * time.Microsecond)
_, err := mt.Coll.CountDocuments(context.Background(), bson.D{})
assert.Nil(mt, err, "CountDocument error: %v", err)
}
}()
wg.Wait()
})
}
func assertCollectionCount(mt *mtest.T, expectedCount int64) {
mt.Helper()
count, err := mt.Coll.CountDocuments(context.Background(), bson.D{})
assert.Nil(mt, err, "CountDocuments error: %v", err)
assert.Equal(mt, expectedCount, count, "expected CountDocuments result %v, got %v", expectedCount, count)
}
type sessionFunction struct {
name string
target string
fnName string
params []interface{} // should not include context
}
func (sf sessionFunction) execute(mt *mtest.T, sess mongo.Session) error {
var target reflect.Value
switch sf.target {
case "client":
target = reflect.ValueOf(mt.Client)
case "database":
// use a different database for drops because any executed after the drop will get "database not found"
// errors on sharded clusters
if sf.name != "drop database" {
target = reflect.ValueOf(mt.DB)
break
}
target = reflect.ValueOf(mt.Client.Database("sessionsTestsDropDatabase"))
case "collection":
target = reflect.ValueOf(mt.Coll)
case "indexView":
target = reflect.ValueOf(mt.Coll.Indexes())
default:
mt.Fatalf("unrecognized target: %v", sf.target)
}
fn := target.MethodByName(sf.fnName)
paramsValues := interfaceSliceToValueSlice(sf.params)
if sess != nil {
return mongo.WithSession(context.Background(), sess, func(sc mongo.SessionContext) error {
valueArgs := []reflect.Value{reflect.ValueOf(sc)}
valueArgs = append(valueArgs, paramsValues...)
returnValues := fn.Call(valueArgs)
return extractReturnError(returnValues)
})
}
valueArgs := []reflect.Value{reflect.ValueOf(context.Background())}
valueArgs = append(valueArgs, paramsValues...)
returnValues := fn.Call(valueArgs)
return extractReturnError(returnValues)
}
func createFunctionsSlice() []sessionFunction {
insertManyDocs := []interface{}{bson.D{{"x", 1}}}
fooIndex := mongo.IndexModel{
Keys: bson.D{{"foo", -1}},
Options: options.Index().SetName("fooIndex"),
}
manyIndexes := []mongo.IndexModel{fooIndex}
updateDoc := bson.D{{"$inc", bson.D{{"x", 1}}}}
return []sessionFunction{
{"list databases", "client", "ListDatabases", []interface{}{bson.D{}}},
{"insert one", "collection", "InsertOne", []interface{}{bson.D{{"x", 1}}}},
{"insert many", "collection", "InsertMany", []interface{}{insertManyDocs}},
{"delete one", "collection", "DeleteOne", []interface{}{bson.D{}}},
{"delete many", "collection", "DeleteMany", []interface{}{bson.D{}}},
{"update one", "collection", "UpdateOne", []interface{}{bson.D{}, updateDoc}},
{"update many", "collection", "UpdateMany", []interface{}{bson.D{}, updateDoc}},
{"replace one", "collection", "ReplaceOne", []interface{}{bson.D{}, bson.D{}}},
{"aggregate", "collection", "Aggregate", []interface{}{mongo.Pipeline{}}},
{"estimated document count", "collection", "EstimatedDocumentCount", nil},
{"distinct", "collection", "Distinct", []interface{}{"field", bson.D{}}},
{"find", "collection", "Find", []interface{}{bson.D{}}},
{"find one and delete", "collection", "FindOneAndDelete", []interface{}{bson.D{}}},
{"find one and replace", "collection", "FindOneAndReplace", []interface{}{bson.D{}, bson.D{}}},
{"find one and update", "collection", "FindOneAndUpdate", []interface{}{bson.D{}, updateDoc}},
{"drop collection", "collection", "Drop", nil},
{"list collections", "database", "ListCollections", []interface{}{bson.D{}}},
{"drop database", "database", "Drop", nil},
{"create one index", "indexView", "CreateOne", []interface{}{fooIndex}},
{"create many indexes", "indexView", "CreateMany", []interface{}{manyIndexes}},
{"drop one index", "indexView", "DropOne", []interface{}{"barIndex"}},
{"drop all indexes", "indexView", "DropAll", nil},
{"list indexes", "indexView", "List", nil},
}
}
func sessionIDsEqual(mt *mtest.T, id1, id2 bson.Raw) bool {
first, err := id1.LookupErr("id")
assert.Nil(mt, err, "id not found in document %v", id1)
second, err := id2.LookupErr("id")
assert.Nil(mt, err, "id not found in document %v", id2)
_, firstUUID := first.Binary()
_, secondUUID := second.Binary()
return bytes.Equal(firstUUID, secondUUID)
}
func interfaceSliceToValueSlice(args []interface{}) []reflect.Value {
vals := make([]reflect.Value, 0, len(args))
for _, arg := range args {
vals = append(vals, reflect.ValueOf(arg))
}
return vals
}
func extractReturnError(returnValues []reflect.Value) error {
errVal := returnValues[len(returnValues)-1]
switch converted := errVal.Interface().(type) {
case error:
return converted
case *mongo.SingleResult:
return converted.Err()
default:
return nil
}
}
func extractSentSessionID(mt *mtest.T) []byte {
event := mt.GetStartedEvent()
if event == nil {
return nil
}
lsid, err := event.Command.LookupErr("lsid")
if err != nil {
return nil
}
_, data := lsid.Document().Lookup("id").Binary()
return data
}
func getSessionLastUsedTime(mt *mtest.T, sess mongo.Session) time.Time {
xsess, ok := sess.(mongo.XSession)
assert.True(mt, ok, "expected session to implement mongo.XSession, but got %T", sess)
return xsess.ClientSession().LastUsed
}