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package integration
import (
"bytes"
"context"
"testing"
"time"
"github.com/stretchr/testify/require"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/event"
"go.mongodb.org/mongo-driver/internal/testutil"
"go.mongodb.org/mongo-driver/mongo/description"
"go.mongodb.org/mongo-driver/mongo/writeconcern"
"go.mongodb.org/mongo-driver/x/bsonx/bsoncore"
"go.mongodb.org/mongo-driver/x/mongo/driver"
"go.mongodb.org/mongo-driver/x/mongo/driver/operation"
"go.mongodb.org/mongo-driver/x/mongo/driver/topology"
)
func setUpMonitor() (*event.CommandMonitor, chan *event.CommandStartedEvent, chan *event.CommandSucceededEvent, chan *event.CommandFailedEvent) {
started := make(chan *event.CommandStartedEvent, 1)
succeeded := make(chan *event.CommandSucceededEvent, 1)
failed := make(chan *event.CommandFailedEvent, 1)
return &event.CommandMonitor{
Started: func(ctx context.Context, e *event.CommandStartedEvent) {
started <- e
},
Succeeded: func(ctx context.Context, e *event.CommandSucceededEvent) {
succeeded <- e
},
Failed: func(ctx context.Context, e *event.CommandFailedEvent) {
failed <- e
},
}, started, succeeded, failed
}
func skipIfBelow32(ctx context.Context, t *testing.T, topo *topology.Topology) {
server, err := topo.SelectServer(ctx, description.WriteSelector())
noerr(t, err)
versionCmd := bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "serverStatus", 1))
serverStatus, err := testutil.RunCommand(t, server, dbName, versionCmd)
noerr(t, err)
version, err := serverStatus.LookupErr("version")
noerr(t, err)
if testutil.CompareVersions(t, version.StringValue(), "3.2") < 0 {
t.Skip()
}
}
func TestAggregate(t *testing.T) {
t.Run("TestMaxTimeMSInGetMore", func(t *testing.T) {
ctx := context.Background()
monitor, started, succeeded, failed := setUpMonitor()
dbName := "TestAggMaxTimeDB"
collName := "TestAggMaxTimeColl"
top := testutil.MonitoredTopology(t, dbName, monitor)
clearChannels(started, succeeded, failed)
skipIfBelow32(ctx, t, top)
clearChannels(started, succeeded, failed)
err := operation.NewInsert(
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "x", 1)),
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "x", 1)),
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "x", 1)),
).Collection(collName).Database(dbName).
Deployment(top).ServerSelector(description.WriteSelector()).Execute(context.Background())
noerr(t, err)
clearChannels(started, succeeded, failed)
op := operation.NewAggregate(bsoncore.BuildDocumentFromElements(nil)).
Collection(collName).Database(dbName).Deployment(top).ServerSelector(description.WriteSelector()).
CommandMonitor(monitor).BatchSize(2)
err = op.Execute(context.Background())
noerr(t, err)
batchCursor, err := op.Result(driver.CursorOptions{MaxTimeMS: 10, BatchSize: 2, CommandMonitor: monitor})
noerr(t, err)
var e *event.CommandStartedEvent
select {
case e = <-started:
case <-time.After(2000 * time.Millisecond):
t.Fatal("timed out waiting for aggregate")
}
require.Equal(t, "aggregate", e.CommandName)
clearChannels(started, succeeded, failed)
// first Next() should automatically return true
require.True(t, batchCursor.Next(ctx), "expected true from first Next, got false")
clearChannels(started, succeeded, failed)
batchCursor.Next(ctx) // should do getMore
select {
case e = <-started:
case <-time.After(200 * time.Millisecond):
t.Fatal("timed out waiting for getMore")
}
require.Equal(t, "getMore", e.CommandName)
_, err = e.Command.LookupErr("maxTimeMS")
noerr(t, err)
})
t.Run("Multiple Batches", func(t *testing.T) {
ds := []bsoncore.Document{
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "_id", 1)),
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "_id", 2)),
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "_id", 3)),
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "_id", 4)),
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "_id", 5)),
}
wc := writeconcern.New(writeconcern.WMajority())
testutil.AutoInsertDocs(t, wc, ds...)
op := operation.NewAggregate(bsoncore.BuildArray(nil,
bsoncore.BuildDocumentValue(
bsoncore.BuildDocumentElement(nil,
"$match", bsoncore.BuildDocumentElement(nil,
"_id", bsoncore.AppendInt32Element(nil, "$gt", 2),
),
),
),
bsoncore.BuildDocumentValue(
bsoncore.BuildDocumentElement(nil,
"$sort", bsoncore.AppendInt32Element(nil, "_id", 1),
),
),
)).Collection(testutil.ColName(t)).Database(dbName).Deployment(testutil.Topology(t)).
ServerSelector(description.WriteSelector()).BatchSize(2)
err := op.Execute(context.Background())
noerr(t, err)
cursor, err := op.Result(driver.CursorOptions{BatchSize: 2})
noerr(t, err)
var got []bsoncore.Document
for i := 0; i < 2; i++ {
if !cursor.Next(context.Background()) {
t.Error("Cursor should have results, but does not have a next result")
}
docs, err := cursor.Batch().Documents()
noerr(t, err)
got = append(got, docs...)
}
readers := ds[2:]
for i, g := range got {
if !bytes.Equal(g[:len(readers[i])], readers[i]) {
t.Errorf("Did not get expected document. got %v; want %v", bson.Raw(g[:len(readers[i])]), readers[i])
}
}
if cursor.Next(context.Background()) {
t.Error("Cursor should be exhausted but has more results")
}
})
t.Run("AllowDiskUse", func(t *testing.T) {
ds := []bsoncore.Document{
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "_id", 1)),
bsoncore.BuildDocument(nil, bsoncore.AppendInt32Element(nil, "_id", 2)),
}
wc := writeconcern.New(writeconcern.WMajority())
testutil.AutoInsertDocs(t, wc, ds...)
op := operation.NewAggregate(bsoncore.BuildArray(nil)).Collection(testutil.ColName(t)).Database(dbName).
Deployment(testutil.Topology(t)).ServerSelector(description.WriteSelector()).AllowDiskUse(true)
err := op.Execute(context.Background())
if err != nil {
t.Errorf("Expected no error from allowing disk use, but got %v", err)
}
})
}
func clearChannels(s chan *event.CommandStartedEvent, succ chan *event.CommandSucceededEvent, f chan *event.CommandFailedEvent) {
for len(s) > 0 {
<-s
}
for len(succ) > 0 {
<-succ
}
for len(f) > 0 {
<-f
}
}
|
