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stream_test.go
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stream_test.go
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package lungo
import (
"context"
"errors"
"io"
"testing"
"time"
"github.com/stretchr/testify/assert"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/primitive"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
)
func TestStream(t *testing.T) {
collectionTest(t, func(t *testing.T, c ICollection) {
_, err := c.InsertOne(nil, bson.M{})
assert.NoError(t, err)
stream, err := c.Watch(nil, bson.A{}, options.ChangeStream().SetFullDocument(options.UpdateLookup))
assert.NoError(t, err)
assert.NotNil(t, stream)
ret := stream.TryNext(nil)
assert.False(t, ret)
err = stream.Err()
assert.NoError(t, err)
var event bson.M
err = stream.Decode(&event)
assert.True(t, errors.Is(io.EOF, err))
id1 := primitive.NewObjectID()
/* insert */
_, err = c.InsertOne(nil, bson.M{
"_id": id1,
"foo": bson.M{
"bar": "baz",
},
})
assert.NoError(t, err)
ret = stream.Next(nil)
assert.True(t, ret)
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"fullDocument": bson.M{
"_id": id1,
"foo": bson.M{
"bar": "baz",
},
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "insert",
}, event)
ret = stream.TryNext(nil)
assert.False(t, ret)
assert.NoError(t, stream.Err())
err = stream.Err()
assert.NoError(t, err)
err = stream.Decode(&event)
assert.NoError(t, err)
/* replace */
_, err = c.ReplaceOne(nil, bson.M{
"_id": id1,
}, bson.M{
"_id": id1,
"foo": bson.M{
"bar": "quz",
},
})
assert.NoError(t, err)
time.Sleep(50 * time.Millisecond)
ret = stream.TryNext(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"fullDocument": bson.M{
"_id": id1,
"foo": bson.M{
"bar": "quz",
},
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "replace",
}, event)
ret = stream.TryNext(nil)
assert.False(t, ret)
err = stream.Err()
assert.NoError(t, err)
err = stream.Decode(&event)
assert.NoError(t, err)
/* update (change field) */
_, err = c.UpdateOne(nil, bson.M{
"_id": id1,
}, bson.M{
"$set": bson.M{
"foo.bar": "baz",
},
})
assert.NoError(t, err)
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"fullDocument": bson.M{
"_id": id1,
"foo": bson.M{
"bar": "baz",
},
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "update",
"updateDescription": bson.M{
"updatedFields": bson.M{
"foo.bar": "baz",
},
"removedFields": bson.A{},
"truncatedArrays": bson.A{},
},
}, event)
ret = stream.TryNext(nil)
assert.False(t, ret)
err = stream.Err()
assert.NoError(t, err)
err = stream.Decode(&event)
assert.NoError(t, err)
/* update (remove field) */
_, err = c.UpdateOne(nil, bson.M{
"_id": id1,
}, bson.M{
"$unset": bson.M{
"foo.bar": "",
},
})
assert.NoError(t, err)
time.Sleep(50 * time.Millisecond)
ret = stream.TryNext(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"fullDocument": bson.M{
"_id": id1,
"foo": bson.M{},
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "update",
"updateDescription": bson.M{
"updatedFields": bson.M{},
"removedFields": bson.A{
"foo.bar",
},
"truncatedArrays": bson.A{},
},
}, event)
ret = stream.TryNext(nil)
assert.False(t, ret)
err = stream.Err()
assert.NoError(t, err)
err = stream.Decode(&event)
assert.NoError(t, err)
/* delete */
_, err = c.DeleteOne(nil, bson.M{
"_id": id1,
})
assert.NoError(t, err)
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "delete",
}, event)
ret = stream.TryNext(nil)
assert.False(t, ret)
err = stream.Err()
assert.NoError(t, err)
err = stream.Decode(&event)
assert.NoError(t, err)
/* close */
err = stream.Close(nil)
assert.NoError(t, err)
/* use after close */
ret = stream.Next(nil)
assert.False(t, ret)
ret = stream.TryNext(nil)
assert.False(t, ret)
err = stream.Err()
assert.NoError(t, err)
err = stream.Decode(&event)
assert.True(t, errors.Is(err, mongo.ErrNilCursor))
err = stream.Close(nil)
assert.NoError(t, err)
})
}
func TestStreamTimeout(t *testing.T) {
collectionTest(t, func(t *testing.T, c ICollection) {
_, err := c.InsertOne(nil, bson.M{})
assert.NoError(t, err)
stream, err := c.Watch(nil, bson.A{})
assert.NoError(t, err)
assert.NotNil(t, stream)
ret := stream.Next(timeout(50))
assert.False(t, ret)
assert.True(t, errors.Is(stream.Err(), context.DeadlineExceeded))
ret = stream.Next(nil)
assert.False(t, ret)
assert.True(t, errors.Is(stream.Err(), context.DeadlineExceeded))
ret = stream.TryNext(nil)
assert.False(t, ret)
assert.True(t, errors.Is(stream.Err(), context.DeadlineExceeded))
err = stream.Close(nil)
assert.NoError(t, err)
ret = stream.Next(nil)
assert.False(t, ret)
ret = stream.TryNext(nil)
assert.False(t, ret)
err = stream.Err()
assert.NoError(t, err)
})
collectionTest(t, func(t *testing.T, c ICollection) {
_, err := c.InsertOne(nil, bson.M{})
assert.NoError(t, err)
stream, err := c.Watch(nil, bson.A{})
assert.NoError(t, err)
assert.NotNil(t, stream)
// trigger async load of first batch in mongo
stream.TryNext(nil)
time.Sleep(50 * time.Millisecond)
ret := stream.TryNext(timeout(-10))
assert.False(t, ret)
assert.True(t, errors.Is(stream.Err(), context.Canceled))
ret = stream.Next(nil)
assert.False(t, ret)
assert.True(t, errors.Is(stream.Err(), context.Canceled))
ret = stream.TryNext(nil)
assert.False(t, ret)
assert.True(t, errors.Is(stream.Err(), context.Canceled))
err = stream.Close(nil)
assert.NoError(t, err)
ret = stream.Next(nil)
assert.False(t, ret)
ret = stream.TryNext(nil)
assert.False(t, ret)
err = stream.Err()
assert.NoError(t, err)
})
}
func TestStreamArrayChanges(t *testing.T) {
collectionTest(t, func(t *testing.T, c ICollection) {
_, err := c.InsertOne(nil, bson.M{})
assert.NoError(t, err)
stream, err := c.Watch(nil, bson.A{}, options.ChangeStream().SetFullDocument(options.UpdateLookup))
assert.NoError(t, err)
assert.NotNil(t, stream)
ret := stream.TryNext(nil)
assert.False(t, ret)
id1 := primitive.NewObjectID()
/* insert */
_, err = c.InsertOne(nil, bson.M{
"_id": id1,
"foo": bson.A{
bson.M{
"foo": "bar",
},
},
})
assert.NoError(t, err)
ret = stream.Next(nil)
assert.True(t, ret)
var event bson.M
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"fullDocument": bson.M{
"_id": id1,
"foo": bson.A{
bson.M{
"foo": "bar",
},
},
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "insert",
}, event)
ret = stream.TryNext(nil)
assert.False(t, ret)
/* update (change field) */
_, err = c.UpdateOne(nil, bson.M{
"_id": id1,
}, bson.M{
"$push": bson.M{
"foo": bson.M{
"bar": "baz",
},
},
})
assert.NoError(t, err)
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"fullDocument": bson.M{
"_id": id1,
"foo": bson.A{
bson.M{
"foo": "bar",
},
bson.M{
"bar": "baz",
},
},
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "update",
"updateDescription": bson.M{
"updatedFields": bson.M{
"foo.1": bson.M{
"bar": "baz",
},
},
"removedFields": bson.A{},
"truncatedArrays": bson.A{},
},
}, event)
ret = stream.TryNext(nil)
assert.False(t, ret)
/* update (remove field) */
_, err = c.UpdateOne(nil, bson.M{
"_id": id1,
}, bson.M{
"$pop": bson.M{
"foo": -1,
},
})
assert.NoError(t, err)
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"fullDocument": bson.M{
"_id": id1,
"foo": bson.A{
bson.M{
"bar": "baz",
},
},
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "update",
"updateDescription": bson.M{
"updatedFields": bson.M{
"foo": bson.A{
bson.M{
"bar": "baz",
},
},
},
"removedFields": bson.A{},
"truncatedArrays": bson.A{},
},
}, event)
ret = stream.TryNext(nil)
assert.False(t, ret)
/* close */
err = stream.Close(nil)
assert.NoError(t, err)
ret = stream.Next(nil)
assert.False(t, ret)
ret = stream.TryNext(nil)
assert.False(t, ret)
err = stream.Err()
assert.NoError(t, err)
})
}
func TestStreamAsync(t *testing.T) {
collectionTest(t, func(t *testing.T, c ICollection) {
stream, err := c.Watch(nil, bson.A{}, options.ChangeStream().SetFullDocument(options.UpdateLookup))
assert.NoError(t, err)
assert.NotNil(t, stream)
go func() {
time.Sleep(50 * time.Millisecond)
_, err = c.InsertOne(nil, bson.M{"foo": "bar"})
assert.NoError(t, err)
time.Sleep(50 * time.Millisecond)
_, err = c.InsertOne(nil, bson.M{"foo": "bar"})
assert.NoError(t, err)
}()
ret := stream.Next(nil)
assert.True(t, ret)
ret = stream.Next(nil)
assert.True(t, ret)
ret = stream.TryNext(nil)
assert.False(t, ret)
assert.NoError(t, stream.Err())
err = stream.Close(nil)
assert.NoError(t, err)
assert.NoError(t, stream.Err())
})
}
func TestStreamResumption(t *testing.T) {
collectionTest(t, func(t *testing.T, c ICollection) {
/* invalid token and time */
// invalid resume token (resume after)
stream, err := c.Watch(nil, bson.A{}, options.ChangeStream().SetResumeAfter(bson.M{}))
assert.Error(t, err)
assert.Nil(t, stream)
// invalid resume token (start after)
stream, err = c.Watch(nil, bson.A{}, options.ChangeStream().SetStartAfter(bson.M{}))
assert.Error(t, err)
assert.Nil(t, stream)
/* prepare */
_, err = c.InsertOne(nil, bson.M{})
assert.NoError(t, err)
stream, err = c.Watch(nil, bson.A{})
assert.NoError(t, err)
assert.NotNil(t, stream)
id1 := primitive.NewObjectID()
_, err = c.InsertOne(nil, bson.M{
"_id": id1,
"foo": "bar",
})
assert.NoError(t, err)
id2 := primitive.NewObjectID()
_, err = c.InsertOne(nil, bson.M{
"_id": id2,
"foo": "bar",
})
assert.NoError(t, err)
ret := stream.Next(nil)
assert.True(t, ret)
var event bson.M
err = stream.Decode(&event)
assert.NoError(t, err)
token := event["_id"]
timestamp := event["clusterTime"].(primitive.Timestamp)
assert.NotEmpty(t, token)
assert.NotEmpty(t, timestamp)
err = stream.Close(nil)
assert.NoError(t, err)
assert.NoError(t, stream.Err())
/* resume after */
stream, err = c.Watch(nil, bson.A{}, options.ChangeStream().SetResumeAfter(token))
assert.NoError(t, err)
assert.NotNil(t, stream)
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id2,
},
"fullDocument": bson.M{
"_id": id2,
"foo": "bar",
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "insert",
}, event)
err = stream.Close(nil)
assert.NoError(t, err)
assert.NoError(t, stream.Err())
/* start after */
stream, err = c.Watch(nil, bson.A{}, options.ChangeStream().SetStartAfter(token))
assert.NoError(t, err)
assert.NotNil(t, stream)
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id2,
},
"fullDocument": bson.M{
"_id": id2,
"foo": "bar",
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "insert",
}, event)
err = stream.Close(nil)
assert.NoError(t, err)
assert.NoError(t, stream.Err())
/* start at */
stream, err = c.Watch(nil, bson.A{}, options.ChangeStream().SetStartAtOperationTime(×tamp))
assert.NoError(t, err)
assert.NotNil(t, stream)
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"fullDocument": bson.M{
"_id": id1,
"foo": "bar",
},
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "insert",
}, event)
err = stream.Close(nil)
assert.NoError(t, err)
assert.NoError(t, stream.Err())
})
}
func TestStreamInvalidationCollection(t *testing.T) {
collectionTest(t, func(t *testing.T, c ICollection) {
_, err := c.InsertOne(nil, bson.M{})
assert.NoError(t, err)
stream, err := c.Watch(nil, bson.A{})
assert.NoError(t, err)
assert.NotNil(t, stream)
/* drop */
err = c.Drop(nil)
assert.NoError(t, err)
ret := stream.Next(nil)
assert.True(t, ret)
var event bson.M
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"ns": bson.M{
"db": c.Database().Name(),
"coll": c.Name(),
},
"operationType": "drop",
}, event)
/* invalidate */
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"operationType": "invalidate",
}, event)
ret = stream.Next(nil)
assert.False(t, ret)
assert.NoError(t, stream.Err())
/* close */
err = stream.Close(nil)
assert.NoError(t, err)
err = stream.Err()
assert.NoError(t, err)
})
}
func TestStreamInvalidationDatabase(t *testing.T) {
clientTest(t, func(t *testing.T, c IClient) {
db := c.Database("test-lungo-stream")
_, err := db.Collection("foo").InsertOne(nil, bson.M{})
assert.NoError(t, err)
stream, err := db.Watch(nil, bson.A{})
assert.NoError(t, err)
assert.NotNil(t, stream)
/* drop */
err = db.Drop(nil)
assert.NoError(t, err)
ret := stream.Next(nil)
assert.True(t, ret)
var event bson.M
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"ns": bson.M{
"db": db.Name(),
"coll": "foo",
},
"operationType": "drop",
}, event)
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"ns": bson.M{
"db": db.Name(),
},
"operationType": "dropDatabase",
}, event)
/* invalidate */
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"operationType": "invalidate",
}, event)
ret = stream.Next(nil)
assert.False(t, ret)
assert.NoError(t, stream.Err())
/* close */
err = stream.Close(nil)
assert.NoError(t, err)
err = stream.Err()
assert.NoError(t, err)
})
}
func TestStreamInvalidationClient(t *testing.T) {
clientTest(t, func(t *testing.T, c IClient) {
db := c.Database("test-lungo-stream")
_, err := db.Collection("foo").InsertOne(nil, bson.M{})
assert.NoError(t, err)
stream, err := c.Watch(nil, bson.A{})
assert.NoError(t, err)
assert.NotNil(t, stream)
/* drop */
err = db.Drop(nil)
assert.NoError(t, err)
ret := stream.Next(nil)
assert.True(t, ret)
var event bson.M
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"ns": bson.M{
"db": db.Name(),
"coll": "foo",
},
"operationType": "drop",
}, event)
ret = stream.Next(nil)
assert.True(t, ret)
event = nil
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"ns": bson.M{
"db": db.Name(),
},
"operationType": "dropDatabase",
}, event)
ret = stream.Next(timeout(50))
assert.False(t, ret)
assert.True(t, errors.Is(stream.Err(), context.DeadlineExceeded))
/* close */
err = stream.Close(nil)
assert.NoError(t, err)
err = stream.Err()
assert.NoError(t, err)
})
}
func TestStreamIsolationCollection(t *testing.T) {
collectionTest(t, func(t *testing.T, c ICollection) {
_, err := c.InsertOne(nil, bson.M{})
assert.NoError(t, err)
stream, err := c.Watch(nil, bson.A{})
assert.NoError(t, err)
assert.NotNil(t, stream)
_, err = c.Database().Collection("foo").InsertOne(nil, bson.M{})
assert.NoError(t, err)
id1 := primitive.NewObjectID()
_, err = c.InsertOne(nil, bson.M{
"_id": id1,
"foo": "bar",
})
assert.NoError(t, err)
ret := stream.Next(nil)
assert.True(t, ret)
var event bson.M
err = stream.Decode(&event)
assert.NoError(t, err)
assert.NotEmpty(t, event["_id"])
assert.NotEmpty(t, event["clusterTime"])
assert.Equal(t, bson.M{
"_id": event["_id"],
"clusterTime": event["clusterTime"],
"documentKey": bson.M{
"_id": id1,
},
"fullDocument": bson.M{
"_id": id1,
"foo": "bar",
},
"ns": bson.M{