Add tests for the storage interface (#995)

* Move docs to interface

* Add tests around syncing

* Add topology token test

* Linting
This commit is contained in:
Kegsay 2020-04-30 17:15:29 +01:00 committed by GitHub
parent 540f6fcd94
commit ebbfc12592
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 371 additions and 55 deletions

View file

@ -28,26 +28,83 @@ import (
type Database interface {
common.PartitionStorer
// AllJoinedUsersInRooms returns a map of room ID to a list of all joined user IDs.
AllJoinedUsersInRooms(ctx context.Context) (map[string][]string, error)
// Events lookups a list of event by their event ID.
// Returns a list of events matching the requested IDs found in the database.
// If an event is not found in the database then it will be omitted from the list.
// Returns an error if there was a problem talking with the database.
// Does not include any transaction IDs in the returned events.
Events(ctx context.Context, eventIDs []string) ([]gomatrixserverlib.HeaderedEvent, error)
WriteEvent(context.Context, *gomatrixserverlib.HeaderedEvent, []gomatrixserverlib.HeaderedEvent, []string, []string, *api.TransactionID, bool) (types.StreamPosition, error)
// WriteEvent into the database. It is not safe to call this function from multiple goroutines, as it would create races
// when generating the sync stream position for this event. Returns the sync stream position for the inserted event.
// Returns an error if there was a problem inserting this event.
WriteEvent(ctx context.Context, ev *gomatrixserverlib.HeaderedEvent, addStateEvents []gomatrixserverlib.HeaderedEvent,
addStateEventIDs []string, removeStateEventIDs []string, transactionID *api.TransactionID, excludeFromSync bool) (types.StreamPosition, error)
// GetStateEvent returns the Matrix state event of a given type for a given room with a given state key
// If no event could be found, returns nil
// If there was an issue during the retrieval, returns an error
GetStateEvent(ctx context.Context, roomID, evType, stateKey string) (*gomatrixserverlib.HeaderedEvent, error)
// GetStateEventsForRoom fetches the state events for a given room.
// Returns an empty slice if no state events could be found for this room.
// Returns an error if there was an issue with the retrieval.
GetStateEventsForRoom(ctx context.Context, roomID string, stateFilterPart *gomatrixserverlib.StateFilter) (stateEvents []gomatrixserverlib.HeaderedEvent, err error)
// SyncPosition returns the latest positions for syncing.
SyncPosition(ctx context.Context) (types.PaginationToken, error)
// IncrementalSync returns all the data needed in order to create an incremental
// sync response for the given user. Events returned will include any client
// transaction IDs associated with the given device. These transaction IDs come
// from when the device sent the event via an API that included a transaction
// ID.
IncrementalSync(ctx context.Context, device authtypes.Device, fromPos, toPos types.PaginationToken, numRecentEventsPerRoom int, wantFullState bool) (*types.Response, error)
// CompleteSync returns a complete /sync API response for the given user.
CompleteSync(ctx context.Context, userID string, numRecentEventsPerRoom int) (*types.Response, error)
// GetAccountDataInRange returns all account data for a given user inserted or
// updated between two given positions
// Returns a map following the format data[roomID] = []dataTypes
// If no data is retrieved, returns an empty map
// If there was an issue with the retrieval, returns an error
GetAccountDataInRange(ctx context.Context, userID string, oldPos, newPos types.StreamPosition, accountDataFilterPart *gomatrixserverlib.EventFilter) (map[string][]string, error)
// UpsertAccountData keeps track of new or updated account data, by saving the type
// of the new/updated data, and the user ID and room ID the data is related to (empty)
// room ID means the data isn't specific to any room)
// If no data with the given type, user ID and room ID exists in the database,
// creates a new row, else update the existing one
// Returns an error if there was an issue with the upsert
UpsertAccountData(ctx context.Context, userID, roomID, dataType string) (types.StreamPosition, error)
// AddInviteEvent stores a new invite event for a user.
// If the invite was successfully stored this returns the stream ID it was stored at.
// Returns an error if there was a problem communicating with the database.
AddInviteEvent(ctx context.Context, inviteEvent gomatrixserverlib.HeaderedEvent) (types.StreamPosition, error)
// RetireInviteEvent removes an old invite event from the database.
// Returns an error if there was a problem communicating with the database.
RetireInviteEvent(ctx context.Context, inviteEventID string) error
// SetTypingTimeoutCallback sets a callback function that is called right after
// a user is removed from the typing user list due to timeout.
SetTypingTimeoutCallback(fn cache.TimeoutCallbackFn)
// AddTypingUser adds a typing user to the typing cache.
// Returns the newly calculated sync position for typing notifications.
AddTypingUser(userID, roomID string, expireTime *time.Time) types.StreamPosition
// RemoveTypingUser removes a typing user from the typing cache.
// Returns the newly calculated sync position for typing notifications.
RemoveTypingUser(userID, roomID string) types.StreamPosition
// GetEventsInRange retrieves all of the events on a given ordering using the
// given extremities and limit.
GetEventsInRange(ctx context.Context, from, to *types.PaginationToken, roomID string, limit int, backwardOrdering bool) (events []types.StreamEvent, err error)
// EventPositionInTopology returns the depth of the given event.
EventPositionInTopology(ctx context.Context, eventID string) (types.StreamPosition, error)
// EventsAtTopologicalPosition returns all of the events matching a given
// position in the topology of a given room.
EventsAtTopologicalPosition(ctx context.Context, roomID string, pos types.StreamPosition) ([]types.StreamEvent, error)
// BackwardExtremitiesForRoom returns the event IDs of all of the backward
// extremities we know of for a given room.
BackwardExtremitiesForRoom(ctx context.Context, roomID string) (backwardExtremities []string, err error)
// MaxTopologicalPosition returns the highest topological position for a given room.
MaxTopologicalPosition(ctx context.Context, roomID string) (types.StreamPosition, error)
// StreamEventsToEvents converts streamEvent to Event. If device is non-nil and
// matches the streamevent.transactionID device then the transaction ID gets
// added to the unsigned section of the output event.
StreamEventsToEvents(device *authtypes.Device, in []types.StreamEvent) []gomatrixserverlib.HeaderedEvent
// SyncStreamPosition returns the latest position in the sync stream. Returns 0 if there are no events yet.
SyncStreamPosition(ctx context.Context) (types.StreamPosition, error)
}

View file

@ -93,16 +93,10 @@ func NewSyncServerDatasource(dbDataSourceName string) (*SyncServerDatasource, er
return &d, nil
}
// AllJoinedUsersInRooms returns a map of room ID to a list of all joined user IDs.
func (d *SyncServerDatasource) AllJoinedUsersInRooms(ctx context.Context) (map[string][]string, error) {
return d.roomstate.selectJoinedUsers(ctx)
}
// Events lookups a list of event by their event ID.
// Returns a list of events matching the requested IDs found in the database.
// If an event is not found in the database then it will be omitted from the list.
// Returns an error if there was a problem talking with the database.
// Does not include any transaction IDs in the returned events.
func (d *SyncServerDatasource) Events(ctx context.Context, eventIDs []string) ([]gomatrixserverlib.HeaderedEvent, error) {
streamEvents, err := d.events.selectEvents(ctx, nil, eventIDs)
if err != nil {
@ -148,9 +142,6 @@ func (d *SyncServerDatasource) handleBackwardExtremities(ctx context.Context, tx
return nil
}
// WriteEvent into the database. It is not safe to call this function from multiple goroutines, as it would create races
// when generating the sync stream position for this event. Returns the sync stream position for the inserted event.
// Returns an error if there was a problem inserting this event.
func (d *SyncServerDatasource) WriteEvent(
ctx context.Context,
ev *gomatrixserverlib.HeaderedEvent,
@ -221,18 +212,12 @@ func (d *SyncServerDatasource) updateRoomState(
return nil
}
// GetStateEvent returns the Matrix state event of a given type for a given room with a given state key
// If no event could be found, returns nil
// If there was an issue during the retrieval, returns an error
func (d *SyncServerDatasource) GetStateEvent(
ctx context.Context, roomID, evType, stateKey string,
) (*gomatrixserverlib.HeaderedEvent, error) {
return d.roomstate.selectStateEvent(ctx, roomID, evType, stateKey)
}
// GetStateEventsForRoom fetches the state events for a given room.
// Returns an empty slice if no state events could be found for this room.
// Returns an error if there was an issue with the retrieval.
func (d *SyncServerDatasource) GetStateEventsForRoom(
ctx context.Context, roomID string, stateFilter *gomatrixserverlib.StateFilter,
) (stateEvents []gomatrixserverlib.HeaderedEvent, err error) {
@ -243,8 +228,6 @@ func (d *SyncServerDatasource) GetStateEventsForRoom(
return
}
// GetEventsInRange retrieves all of the events on a given ordering using the
// given extremities and limit.
func (d *SyncServerDatasource) GetEventsInRange(
ctx context.Context,
from, to *types.PaginationToken,
@ -306,29 +289,22 @@ func (d *SyncServerDatasource) GetEventsInRange(
return
}
// SyncPosition returns the latest positions for syncing.
func (d *SyncServerDatasource) SyncPosition(ctx context.Context) (types.PaginationToken, error) {
return d.syncPositionTx(ctx, nil)
}
// BackwardExtremitiesForRoom returns the event IDs of all of the backward
// extremities we know of for a given room.
func (d *SyncServerDatasource) BackwardExtremitiesForRoom(
ctx context.Context, roomID string,
) (backwardExtremities []string, err error) {
return d.backwardExtremities.SelectBackwardExtremitiesForRoom(ctx, roomID)
}
// MaxTopologicalPosition returns the highest topological position for a given
// room.
func (d *SyncServerDatasource) MaxTopologicalPosition(
ctx context.Context, roomID string,
) (types.StreamPosition, error) {
return d.topology.selectMaxPositionInTopology(ctx, roomID)
}
// EventsAtTopologicalPosition returns all of the events matching a given
// position in the topology of a given room.
func (d *SyncServerDatasource) EventsAtTopologicalPosition(
ctx context.Context, roomID string, pos types.StreamPosition,
) ([]types.StreamEvent, error) {
@ -346,7 +322,6 @@ func (d *SyncServerDatasource) EventPositionInTopology(
return d.topology.selectPositionInTopology(ctx, eventID)
}
// SyncStreamPosition returns the latest position in the sync stream. Returns 0 if there are no events yet.
func (d *SyncServerDatasource) SyncStreamPosition(ctx context.Context) (types.StreamPosition, error) {
return d.syncStreamPositionTx(ctx, nil)
}
@ -511,11 +486,6 @@ func (d *SyncServerDatasource) addEDUDeltaToResponse(
return
}
// IncrementalSync returns all the data needed in order to create an incremental
// sync response for the given user. Events returned will include any client
// transaction IDs associated with the given device. These transaction IDs come
// from when the device sent the event via an API that included a transaction
// ID.
func (d *SyncServerDatasource) IncrementalSync(
ctx context.Context,
device authtypes.Device,
@ -645,7 +615,6 @@ func (d *SyncServerDatasource) getResponseWithPDUsForCompleteSync(
return res, toPos, joinedRoomIDs, err
}
// CompleteSync returns a complete /sync API response for the given user.
func (d *SyncServerDatasource) CompleteSync(
ctx context.Context, userID string, numRecentEventsPerRoom int,
) (*types.Response, error) {
@ -677,11 +646,6 @@ var txReadOnlySnapshot = sql.TxOptions{
ReadOnly: true,
}
// GetAccountDataInRange returns all account data for a given user inserted or
// updated between two given positions
// Returns a map following the format data[roomID] = []dataTypes
// If no data is retrieved, returns an empty map
// If there was an issue with the retrieval, returns an error
func (d *SyncServerDatasource) GetAccountDataInRange(
ctx context.Context, userID string, oldPos, newPos types.StreamPosition,
accountDataFilterPart *gomatrixserverlib.EventFilter,
@ -689,29 +653,18 @@ func (d *SyncServerDatasource) GetAccountDataInRange(
return d.accountData.selectAccountDataInRange(ctx, userID, oldPos, newPos, accountDataFilterPart)
}
// UpsertAccountData keeps track of new or updated account data, by saving the type
// of the new/updated data, and the user ID and room ID the data is related to (empty)
// room ID means the data isn't specific to any room)
// If no data with the given type, user ID and room ID exists in the database,
// creates a new row, else update the existing one
// Returns an error if there was an issue with the upsert
func (d *SyncServerDatasource) UpsertAccountData(
ctx context.Context, userID, roomID, dataType string,
) (types.StreamPosition, error) {
return d.accountData.insertAccountData(ctx, userID, roomID, dataType)
}
// AddInviteEvent stores a new invite event for a user.
// If the invite was successfully stored this returns the stream ID it was stored at.
// Returns an error if there was a problem communicating with the database.
func (d *SyncServerDatasource) AddInviteEvent(
ctx context.Context, inviteEvent gomatrixserverlib.HeaderedEvent,
) (types.StreamPosition, error) {
return d.invites.insertInviteEvent(ctx, inviteEvent)
}
// RetireInviteEvent removes an old invite event from the database.
// Returns an error if there was a problem communicating with the database.
func (d *SyncServerDatasource) RetireInviteEvent(
ctx context.Context, inviteEventID string,
) error {
@ -725,16 +678,12 @@ func (d *SyncServerDatasource) SetTypingTimeoutCallback(fn cache.TimeoutCallback
d.eduCache.SetTimeoutCallback(fn)
}
// AddTypingUser adds a typing user to the typing cache.
// Returns the newly calculated sync position for typing notifications.
func (d *SyncServerDatasource) AddTypingUser(
userID, roomID string, expireTime *time.Time,
) types.StreamPosition {
return types.StreamPosition(d.eduCache.AddTypingUser(userID, roomID, expireTime))
}
// RemoveTypingUser removes a typing user from the typing cache.
// Returns the newly calculated sync position for typing notifications.
func (d *SyncServerDatasource) RemoveTypingUser(
userID, roomID string,
) types.StreamPosition {
@ -1073,9 +1022,6 @@ func (d *SyncServerDatasource) currentStateStreamEventsForRoom(
return s, nil
}
// StreamEventsToEvents converts streamEvent to Event. If device is non-nil and
// matches the streamevent.transactionID device then the transaction ID gets
// added to the unsigned section of the output event.
func (d *SyncServerDatasource) StreamEventsToEvents(device *authtypes.Device, in []types.StreamEvent) []gomatrixserverlib.HeaderedEvent {
out := make([]gomatrixserverlib.HeaderedEvent, len(in))
for i := 0; i < len(in); i++ {

View file

@ -0,0 +1,313 @@
package storage_test
import (
"context"
"crypto/ed25519"
"fmt"
"testing"
"time"
"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
"github.com/matrix-org/dendrite/syncapi/storage"
"github.com/matrix-org/dendrite/syncapi/storage/sqlite3"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/gomatrixserverlib"
)
var (
ctx = context.Background()
emptyStateKey = ""
testOrigin = gomatrixserverlib.ServerName("hollow.knight")
testRoomID = fmt.Sprintf("!hallownest:%s", testOrigin)
testUserIDA = fmt.Sprintf("@hornet:%s", testOrigin)
testUserIDB = fmt.Sprintf("@paleking:%s", testOrigin)
testUserDeviceA = authtypes.Device{
UserID: testUserIDA,
ID: "device_id_A",
DisplayName: "Device A",
}
testRoomVersion = gomatrixserverlib.RoomVersionV4
testKeyID = gomatrixserverlib.KeyID("ed25519:storage_test")
testPrivateKey = ed25519.NewKeyFromSeed([]byte{
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32,
})
)
func MustCreateEvent(t *testing.T, roomID string, prevs []gomatrixserverlib.HeaderedEvent, b *gomatrixserverlib.EventBuilder) gomatrixserverlib.HeaderedEvent {
b.RoomID = roomID
if prevs != nil {
prevIDs := make([]string, len(prevs))
for i := range prevs {
prevIDs[i] = prevs[i].EventID()
}
b.PrevEvents = prevIDs
}
e, err := b.Build(time.Now(), testOrigin, testKeyID, testPrivateKey, testRoomVersion)
if err != nil {
t.Fatalf("failed to build event: %s", err)
}
return e.Headered(testRoomVersion)
}
func MustCreateDatabase(t *testing.T) storage.Database {
db, err := sqlite3.NewSyncServerDatasource("file::memory:")
if err != nil {
t.Fatalf("NewSyncServerDatasource returned %s", err)
}
return db
}
// Create a list of events which include a create event, join event and some messages.
func SimpleRoom(t *testing.T, roomID, userA, userB string) (msgs []gomatrixserverlib.HeaderedEvent, state []gomatrixserverlib.HeaderedEvent) {
var events []gomatrixserverlib.HeaderedEvent
events = append(events, MustCreateEvent(t, roomID, nil, &gomatrixserverlib.EventBuilder{
Content: []byte(fmt.Sprintf(`{"room_version":"4","creator":"%s"}`, userA)),
Type: "m.room.create",
StateKey: &emptyStateKey,
Sender: userA,
Depth: int64(len(events) + 1),
}))
state = append(state, events[len(events)-1])
events = append(events, MustCreateEvent(t, roomID, []gomatrixserverlib.HeaderedEvent{events[len(events)-1]}, &gomatrixserverlib.EventBuilder{
Content: []byte(fmt.Sprintf(`{"membership":"join"}`)),
Type: "m.room.member",
StateKey: &userA,
Sender: userA,
Depth: int64(len(events) + 1),
}))
state = append(state, events[len(events)-1])
for i := 0; i < 10; i++ {
events = append(events, MustCreateEvent(t, roomID, []gomatrixserverlib.HeaderedEvent{events[len(events)-1]}, &gomatrixserverlib.EventBuilder{
Content: []byte(fmt.Sprintf(`{"body":"Message A %d"}`, i+1)),
Type: "m.room.message",
Sender: userA,
Depth: int64(len(events) + 1),
}))
}
events = append(events, MustCreateEvent(t, roomID, []gomatrixserverlib.HeaderedEvent{events[len(events)-1]}, &gomatrixserverlib.EventBuilder{
Content: []byte(fmt.Sprintf(`{"membership":"join"}`)),
Type: "m.room.member",
StateKey: &userB,
Sender: userB,
Depth: int64(len(events) + 1),
}))
state = append(state, events[len(events)-1])
for i := 0; i < 10; i++ {
events = append(events, MustCreateEvent(t, roomID, []gomatrixserverlib.HeaderedEvent{events[len(events)-1]}, &gomatrixserverlib.EventBuilder{
Content: []byte(fmt.Sprintf(`{"body":"Message B %d"}`, i+1)),
Type: "m.room.message",
Sender: userB,
Depth: int64(len(events) + 1),
}))
}
return events, state
}
func MustWriteEvents(t *testing.T, db storage.Database, events []gomatrixserverlib.HeaderedEvent) (positions []types.StreamPosition) {
for _, ev := range events {
var addStateEvents []gomatrixserverlib.HeaderedEvent
var addStateEventIDs []string
var removeStateEventIDs []string
if ev.StateKey() != nil {
addStateEvents = append(addStateEvents, ev)
addStateEventIDs = append(addStateEventIDs, ev.EventID())
}
pos, err := db.WriteEvent(ctx, &ev, addStateEvents, addStateEventIDs, removeStateEventIDs, nil, false)
if err != nil {
t.Fatalf("WriteEvent failed: %s", err)
}
positions = append(positions, pos)
}
return
}
func TestWriteEvents(t *testing.T) {
t.Parallel()
db := MustCreateDatabase(t)
events, _ := SimpleRoom(t, testRoomID, testUserIDA, testUserIDB)
MustWriteEvents(t, db, events)
}
// These tests assert basic functionality of the IncrementalSync and CompleteSync functions.
func TestSyncResponse(t *testing.T) {
t.Parallel()
db := MustCreateDatabase(t)
events, state := SimpleRoom(t, testRoomID, testUserIDA, testUserIDB)
positions := MustWriteEvents(t, db, events)
latest, err := db.SyncPosition(ctx)
if err != nil {
t.Fatalf("failed to get SyncPosition: %s", err)
}
testCases := []struct {
Name string
DoSync func() (*types.Response, error)
WantTimeline []gomatrixserverlib.HeaderedEvent
WantState []gomatrixserverlib.HeaderedEvent
}{
// The purpose of this test is to make sure that incremental syncs are including up to the latest events.
// It's a basic sanity test that sync works. It creates a `since` token that is on the penultimate event.
// It makes sure the response includes the final event.
{
Name: "IncrementalSync penultimate",
DoSync: func() (*types.Response, error) {
from := types.NewPaginationTokenFromTypeAndPosition( // pretend we are at the penultimate event
types.PaginationTokenTypeStream, positions[len(positions)-2], types.StreamPosition(0),
)
return db.IncrementalSync(ctx, testUserDeviceA, *from, latest, 5, false)
},
WantTimeline: events[len(events)-1:],
},
// The purpose of this test is to check that passing a `numRecentEventsPerRoom` correctly limits the
// number of returned events. This is critical for big rooms hence the test here.
{
Name: "IncrementalSync limited",
DoSync: func() (*types.Response, error) {
from := types.NewPaginationTokenFromTypeAndPosition( // pretend we are 10 events behind
types.PaginationTokenTypeStream, positions[len(positions)-11], types.StreamPosition(0),
)
// limit is set to 5
return db.IncrementalSync(ctx, testUserDeviceA, *from, latest, 5, false)
},
// want the last 5 events, NOT the last 10.
WantTimeline: events[len(events)-5:],
},
// The purpose of this test is to check that CompleteSync returns all the current state as well as
// honouring the `numRecentEventsPerRoom` value
{
Name: "CompleteSync limited",
DoSync: func() (*types.Response, error) {
// limit set to 5
return db.CompleteSync(ctx, testUserIDA, 5)
},
// want the last 5 events, NOT the last 10.
WantTimeline: events[len(events)-5:],
// want all state for the room
WantState: state,
},
// The purpose of this test is to check that CompleteSync can return everything with a high enough
// `numRecentEventsPerRoom`.
{
Name: "CompleteSync",
DoSync: func() (*types.Response, error) {
return db.CompleteSync(ctx, testUserIDA, len(events)+1)
},
WantTimeline: events,
// We want no state at all as that field in /sync is the delta between the token (beginning of time)
// and the START of the timeline.
},
}
for _, tc := range testCases {
t.Run(tc.Name, func(st *testing.T) {
res, err := tc.DoSync()
if err != nil {
st.Fatalf("failed to do sync: %s", err)
}
next := types.NewPaginationTokenFromTypeAndPosition(types.PaginationTokenTypeStream, latest.PDUPosition, latest.EDUTypingPosition)
if res.NextBatch != next.String() {
st.Errorf("NextBatch got %s want %s", res.NextBatch, next.String())
}
roomRes, ok := res.Rooms.Join[testRoomID]
if !ok {
st.Fatalf("IncrementalSync response missing room %s - response: %+v", testRoomID, res)
}
assertEventsEqual(st, "state for "+testRoomID, false, roomRes.State.Events, tc.WantState)
assertEventsEqual(st, "timeline for "+testRoomID, false, roomRes.Timeline.Events, tc.WantTimeline)
})
}
}
// The purpose of this test is to ensure that backfill does indeed go backwards, using a stream token.
func TestGetEventsInRangeWithStreamToken(t *testing.T) {
t.Parallel()
db := MustCreateDatabase(t)
events, _ := SimpleRoom(t, testRoomID, testUserIDA, testUserIDB)
MustWriteEvents(t, db, events)
latest, err := db.SyncPosition(ctx)
if err != nil {
t.Fatalf("failed to get SyncPosition: %s", err)
}
// head towards the beginning of time
to := types.NewPaginationTokenFromTypeAndPosition(types.PaginationTokenTypeTopology, 0, 0)
// backpaginate 5 messages starting at the latest position.
paginatedEvents, err := db.GetEventsInRange(ctx, &latest, to, testRoomID, 5, true)
if err != nil {
t.Fatalf("GetEventsInRange returned an error: %s", err)
}
gots := gomatrixserverlib.HeaderedToClientEvents(db.StreamEventsToEvents(&testUserDeviceA, paginatedEvents), gomatrixserverlib.FormatAll)
assertEventsEqual(t, "", true, gots, reversed(events[len(events)-5:]))
}
// The purpose of this test is to ensure that backfill does indeed go backwards, using a topology token
func TestGetEventsInRangeWithTopologyToken(t *testing.T) {
t.Parallel()
db := MustCreateDatabase(t)
events, _ := SimpleRoom(t, testRoomID, testUserIDA, testUserIDB)
MustWriteEvents(t, db, events)
latest, err := db.MaxTopologicalPosition(ctx, testRoomID)
if err != nil {
t.Fatalf("failed to get MaxTopologicalPosition: %s", err)
}
from := types.NewPaginationTokenFromTypeAndPosition(types.PaginationTokenTypeTopology, latest, 0)
// head towards the beginning of time
to := types.NewPaginationTokenFromTypeAndPosition(types.PaginationTokenTypeTopology, 0, 0)
// backpaginate 5 messages starting at the latest position.
paginatedEvents, err := db.GetEventsInRange(ctx, from, to, testRoomID, 5, true)
if err != nil {
t.Fatalf("GetEventsInRange returned an error: %s", err)
}
gots := gomatrixserverlib.HeaderedToClientEvents(db.StreamEventsToEvents(&testUserDeviceA, paginatedEvents), gomatrixserverlib.FormatAll)
assertEventsEqual(t, "", true, gots, reversed(events[len(events)-5:]))
}
func assertEventsEqual(t *testing.T, msg string, checkRoomID bool, gots []gomatrixserverlib.ClientEvent, wants []gomatrixserverlib.HeaderedEvent) {
if len(gots) != len(wants) {
t.Fatalf("%s response returned %d events, want %d", msg, len(gots), len(wants))
}
for i := range gots {
g := gots[i]
w := wants[i]
if g.EventID != w.EventID() {
t.Errorf("%s event[%d] event_id mismatch: got %s want %s", msg, i, g.EventID, w.EventID())
}
if g.Sender != w.Sender() {
t.Errorf("%s event[%d] sender mismatch: got %s want %s", msg, i, g.Sender, w.Sender())
}
if checkRoomID && g.RoomID != w.RoomID() {
t.Errorf("%s event[%d] room_id mismatch: got %s want %s", msg, i, g.RoomID, w.RoomID())
}
if g.Type != w.Type() {
t.Errorf("%s event[%d] event type mismatch: got %s want %s", msg, i, g.Type, w.Type())
}
if g.OriginServerTS != w.OriginServerTS() {
t.Errorf("%s event[%d] origin_server_ts mismatch: got %v want %v", msg, i, g.OriginServerTS, w.OriginServerTS())
}
if string(g.Content) != string(w.Content()) {
t.Errorf("%s event[%d] content mismatch: got %s want %s", msg, i, string(g.Content), string(w.Content()))
}
if string(g.Unsigned) != string(w.Unsigned()) {
t.Errorf("%s event[%d] unsigned mismatch: got %s want %s", msg, i, string(g.Unsigned), string(w.Unsigned()))
}
if (g.StateKey == nil && w.StateKey() != nil) || (g.StateKey != nil && w.StateKey() == nil) {
t.Fatalf("%s event[%d] state_key [not] missing: got %v want %v", msg, i, g.StateKey, w.StateKey())
}
if g.StateKey != nil {
if !w.StateKeyEquals(*g.StateKey) {
t.Errorf("%s event[%d] state_key mismatch: got %s want %s", msg, i, *g.StateKey, *w.StateKey())
}
}
}
}
func reversed(in []gomatrixserverlib.HeaderedEvent) []gomatrixserverlib.HeaderedEvent {
out := make([]gomatrixserverlib.HeaderedEvent, len(in))
for i := 0; i < len(in); i++ {
out[i] = in[len(in)-i-1]
}
return out
}