forked from mystiq/hydrogen-web
Start translating GapWriter tests to using MockTimeline
This commit is contained in:
Danila Fedorin
parent
7d27b46873
commit
82c35355b6
1 changed files with 87 additions and 208 deletions
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@ -260,46 +260,20 @@ import {RelationWriter} from "./RelationWriter.js";
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import {createMockStorage} from "../../../../mocks/Storage.js";
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import {FragmentBoundaryEntry} from "../entries/FragmentBoundaryEntry.js";
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import {createEvent, withTextBody, withContent, withSender} from "../../../../mocks/event.js";
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import {NullLogger} from "../../../../logging/NullLogger.js";
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import {NullLogItem} from "../../../../logging/NullLogger.js";
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import {TimelineMock, eventIds} from "../../../../mocks/TimelineMock.ts";
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import {SyncWriter} from "./SyncWriter.js";
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import {MemberWriter} from "./MemberWriter.js";
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import {KeyLimits} from "../../../storage/common";
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export function tests() {
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const alice = "alice@hs.tdl";
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const bob = "bob@hs.tdl";
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const roomId = "!room:hs.tdl";
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const startToken = "begin_token";
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const endToken = "end_token";
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class EventCreator {
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constructor() {
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this.counter = 0;
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}
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nextEvent() {
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const event = withTextBody(`This is event ${this.counter}`, withSender(bob, createEvent("m.room.message", `!event${this.counter}`)));
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this.counter++;
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return event;
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}
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nextEvents(n) {
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const events = [];
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for (let i = 0; i < n; i++) {
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events.push(this.nextEvent());
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}
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return events;
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}
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createMessagesResponse() {
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return {
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start: startToken,
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end: endToken,
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chunk: this.nextEvents(5),
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state: []
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}
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}
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}
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const alice = "alice@hs.tdl";
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const logger = new NullLogItem();
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async function createGapFillTxn(storage) {
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return storage.readWriteTxn([
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storage.storeNames.roomMembers,
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storage.storeNames.pendingEvents,
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storage.storeNames.timelineEvents,
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storage.storeNames.timelineRelations,
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@ -317,205 +291,110 @@ export function tests() {
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const gapWriter = new GapWriter({
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roomId, storage, fragmentIdComparer, relationWriter
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});
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return { storage, txn, fragmentIdComparer, gapWriter, eventCreator: new EventCreator() };
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}
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async function createFragment(id, txn, fragmentIdComparer, overrides = {}) {
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const newFragment = Object.assign({
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roomId, id,
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previousId: null,
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nextId: null,
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nextToken: null,
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previousToken: null
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}, overrides);
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await txn.timelineFragments.add(newFragment);
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fragmentIdComparer.add(newFragment);
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return newFragment;
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}
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function prefillFragment(txn, eventCreator, fragment, n) {
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let initialKey = EventKey.defaultFragmentKey(fragment.id);
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const initialEntries = eventCreator.nextEvents(n);
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initialEntries.forEach(e => {
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txn.timelineEvents.insert(createEventEntry(initialKey, roomId, e))
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initialKey = initialKey.nextKey();
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const memberWriter = new MemberWriter(roomId);
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const syncWriter = new SyncWriter({
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roomId,
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fragmentIdComparer,
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memberWriter,
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relationWriter
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});
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return initialEntries;
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return { storage, txn, fragmentIdComparer, gapWriter, syncWriter, timelineMock: new TimelineMock() };
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}
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async function assertTightLink(assert, txn, fragmentId1, fragmentId2) {
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const fragment1 = await txn.timelineFragments.get(roomId, fragmentId1);
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const fragment2 = await txn.timelineFragments.get(roomId, fragmentId2);
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async function syncAndWrite(mocks, previousResponse) {
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const {txn, timelineMock, syncWriter, fragmentIdComparer} = mocks;
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const syncResponse = timelineMock.sync(previousResponse?.next_batch);
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console.log(syncResponse.timeline.events);
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const {newLiveKey} = await syncWriter.writeSync(syncResponse, false, false, txn, logger);
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syncWriter.afterSync(newLiveKey);
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return {
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syncResponse,
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fragmentEntry: newLiveKey ? FragmentBoundaryEntry.start(
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await txn.timelineFragments.get(roomId, newLiveKey.fragmentId),
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fragmentIdComparer,
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) : null,
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};
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}
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async function backfillAndWrite(mocks, fragmentEntry) {
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const {txn, timelineMock, gapWriter} = mocks;
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const messageResponse = timelineMock.messages(fragmentEntry.token, undefined, fragmentEntry.direction.asApiString());
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await gapWriter.writeFragmentFill(fragmentEntry, messageResponse, txn, logger);
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}
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async function allFragmentEvents(mocks, fragmentId) {
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const {txn} = mocks;
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const entries = await txn.timelineEvents.eventsAfter(roomId, new EventKey(fragmentId, KeyLimits.minStorageKey));
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return entries.map(e => e.event);
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}
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async function fetchFragment(mocks, fragmentId) {
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const {txn} = mocks;
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return txn.timelineFragments.get(roomId, fragmentId);
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}
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function assertDeepLink(assert, fragment1, fragment2) {
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assert.equal(fragment1.nextId, fragment2.id);
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assert.equal(fragment2.previousId, fragment1.id);
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assert.equal(fragment2.previousToken, null);
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assert.equal(fragment1.nextToken, null);
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assert.equal(fragment2.previousToken, null);
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}
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async function assertWeakLink(assert, txn, fragmentId1, fragmentId2) {
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const fragment1 = await txn.timelineFragments.get(roomId, fragmentId1);
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const fragment2 = await txn.timelineFragments.get(roomId, fragmentId2);
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function assertShallowLink(assert, fragment1, fragment2) {
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assert.equal(fragment1.nextId, fragment2.id);
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assert.equal(fragment2.previousId, fragment1.id);
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assert.notEqual(fragment2.previousToken, null);
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assert.notEqual(fragment1.nextToken, null);
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}
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return {
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"Backfilling an empty fragment": async assert => {
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const { txn, fragmentIdComparer, gapWriter, eventCreator } = await setup();
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const emptyFragment = await createFragment(0, txn, fragmentIdComparer, { previousToken: startToken });
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const newEntry = FragmentBoundaryEntry.start(emptyFragment, fragmentIdComparer);
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const response = eventCreator.createMessagesResponse();
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await gapWriter.writeFragmentFill(newEntry, response, txn, null);
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const allEvents = await txn.timelineEvents.eventsAfter(roomId, EventKey.minKey, 100 /* fetch all */);
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for (let i = 0; i < response.chunk.length; i++) {
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const responseEvent = response.chunk[response.chunk.length -i - 1];
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const storedEvent = allEvents[i];
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assert.deepEqual(responseEvent, storedEvent.event);
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}
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await txn.complete();
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},
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"Backfilling a fragment with existing entries": async assert => {
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const { txn, fragmentIdComparer, gapWriter, eventCreator } = await setup();
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const liveFragment = await createFragment(0, txn, fragmentIdComparer, { previousToken: startToken });
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const newEntry = FragmentBoundaryEntry.start(liveFragment, fragmentIdComparer);
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const initialEntries = await prefillFragment(txn, eventCreator, liveFragment, 10);
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const response = eventCreator.createMessagesResponse();
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await gapWriter.writeFragmentFill(newEntry, response, txn, null);
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const allEvents = await txn.timelineEvents.eventsAfter(roomId, EventKey.minKey, 100 /* fetch all */);
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let i = 0;
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for (; i < response.chunk.length; i++) {
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const responseEvent = response.chunk[response.chunk.length -i - 1];
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const storedEvent = allEvents[i];
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assert.deepEqual(responseEvent, storedEvent.event);
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}
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for (const initialEntry of initialEntries) {
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const storedEvent = allEvents[i++];
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assert.deepEqual(initialEntry, storedEvent.event);
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}
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await txn.complete()
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"Backfilling after one sync": async assert => {
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const mocks = await setup();
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const { timelineMock } = mocks;
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timelineMock.append(30);
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const {fragmentEntry} = await syncAndWrite(mocks);
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await backfillAndWrite(mocks, fragmentEntry);
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const events = await allFragmentEvents(mocks, fragmentEntry.fragmentId);
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assert.deepEqual(events.map(e => e.event_id), eventIds(10, 30));
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},
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"Backfilling a fragment that is expected to link up, and does": async assert => {
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const { txn, fragmentIdComparer, gapWriter, eventCreator } = await setup();
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const existingFragment = await createFragment(0, txn, fragmentIdComparer, { nextId: 1, nextToken: startToken });
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const liveFragment = await createFragment(1, txn, fragmentIdComparer, { previousId: 0, previousToken: startToken });
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const newEntry = FragmentBoundaryEntry.start(liveFragment, fragmentIdComparer);
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const mocks = await setup();
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const { timelineMock } = mocks;
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timelineMock.append(10);
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const {syncResponse, fragmentEntry: firstFragmentEntry} = await syncAndWrite(mocks);
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timelineMock.append(15);
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const {fragmentEntry: secondFragmentEntry} = await syncAndWrite(mocks, syncResponse);
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await backfillAndWrite(mocks, secondFragmentEntry);
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const initialEntries = await prefillFragment(txn, eventCreator, existingFragment, 10);
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const response = eventCreator.createMessagesResponse();
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response.chunk.push(initialEntries[initialEntries.length-1]); /* Expect overlap */
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await gapWriter.writeFragmentFill(newEntry, response, txn, null);
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const allEvents = await txn.timelineEvents._timelineStore.selectAll();
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let i = 0;
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for (const initialEntry of initialEntries) {
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const storedEvent = allEvents[i++];
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assert.deepEqual(initialEntry, storedEvent.event);
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}
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for (let j = 0; j < response.chunk.length - 1; j++) {
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const responseEvent = response.chunk[response.chunk.length -j - 2];
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const storedEvent = allEvents[i + j];
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assert.deepEqual(responseEvent, storedEvent.event);
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}
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await assertTightLink(assert, txn, 0, 1);
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const firstFragment = await fetchFragment(mocks, firstFragmentEntry.fragmentId);
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const secondFragment = await fetchFragment(mocks, secondFragmentEntry.fragmentId);
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assertDeepLink(assert, firstFragment, secondFragment)
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const firstEvents = await allFragmentEvents(mocks, firstFragmentEntry.fragmentId);
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assert.deepEqual(firstEvents.map(e => e.event_id), eventIds(0, 10));
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const secondEvents = await allFragmentEvents(mocks, secondFragmentEntry.fragmentId);
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assert.deepEqual(secondEvents.map(e => e.event_id), eventIds(10, 25));
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},
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"Backfilling a fragment that is expected to link up, but doesn't yet": async assert => {
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const { txn, fragmentIdComparer, gapWriter, eventCreator } = await setup();
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const existingFragment = await createFragment(0, txn, fragmentIdComparer, { nextId: 1, nextToken: endToken });
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const liveFragment = await createFragment(1, txn, fragmentIdComparer, { previousId: 0, previousToken: startToken });
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const newEntry = FragmentBoundaryEntry.start(liveFragment, fragmentIdComparer);
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const mocks = await setup();
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const { timelineMock } = mocks;
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timelineMock.append(10);
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const {syncResponse, fragmentEntry: firstFragmentEntry} = await syncAndWrite(mocks);
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timelineMock.append(20);
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const {fragmentEntry: secondFragmentEntry} = await syncAndWrite(mocks, syncResponse);
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await backfillAndWrite(mocks, secondFragmentEntry);
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const initialEntries = await prefillFragment(txn, eventCreator, existingFragment, 10);
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const response = eventCreator.createMessagesResponse();
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await gapWriter.writeFragmentFill(newEntry, response, txn, null);
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const allEvents = await txn.timelineEvents._timelineStore.selectAll();
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let i = 0;
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for (const initialEntry of initialEntries) {
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const storedEvent = allEvents[i++];
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assert.deepEqual(initialEntry, storedEvent.event);
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}
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for (let j = 0; j < response.chunk.length - 1; j++) {
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const responseEvent = response.chunk[response.chunk.length - j - 1];
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const storedEvent = allEvents[i + j];
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assert.deepEqual(responseEvent, storedEvent.event);
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}
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await assertWeakLink(assert, txn, 0, 1);
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const firstFragment = await fetchFragment(mocks, firstFragmentEntry.fragmentId);
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const secondFragment = await fetchFragment(mocks, secondFragmentEntry.fragmentId);
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assertShallowLink(assert, firstFragment, secondFragment)
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const firstEvents = await allFragmentEvents(mocks, firstFragmentEntry.fragmentId);
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assert.deepEqual(firstEvents.map(e => e.event_id), eventIds(0, 10));
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const secondEvents = await allFragmentEvents(mocks, secondFragmentEntry.fragmentId);
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assert.deepEqual(secondEvents.map(e => e.event_id), eventIds(10, 30));
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},
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"Backfilling a fragment that is not expected to link up": async assert => {
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const { txn, fragmentIdComparer, gapWriter, eventCreator } = await setup();
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const existingFragment = await createFragment(0, txn, fragmentIdComparer, { nextToken: startToken });
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const liveFragment = await createFragment(1, txn, fragmentIdComparer, { previousToken: startToken });
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const newEntry = FragmentBoundaryEntry.start(liveFragment, fragmentIdComparer);
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const initialEntries = await prefillFragment(txn, eventCreator, existingFragment, 10);
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const response = eventCreator.createMessagesResponse();
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response.chunk.push(initialEntries[initialEntries.length-1]); /* Fake overlap */
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await gapWriter.writeFragmentFill(newEntry, response, txn, null);
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const allEvents = await txn.timelineEvents._timelineStore.selectAll();
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let i = 0;
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for (const initialEntry of initialEntries) {
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const storedEvent = allEvents[i++];
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assert.deepEqual(initialEntry, storedEvent.event);
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}
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for (let j = 0; j < response.chunk.length - 1; j++) {
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const responseEvent = response.chunk[response.chunk.length -j - 2];
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const storedEvent = allEvents[i + j];
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assert.deepEqual(responseEvent, storedEvent.event);
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}
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await assertTightLink(assert, txn, 0, 1);
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},
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"Receiving a sync with the same events as the current fragment does not create infinite link": async assert => {
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const { txn, fragmentIdComparer, gapWriter, eventCreator } = await setup();
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const liveFragment = await createFragment(0, txn, fragmentIdComparer, { previousToken: startToken });
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const newEntry = FragmentBoundaryEntry.start(liveFragment, fragmentIdComparer);
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const initialEntries = await prefillFragment(txn, eventCreator, liveFragment, 10);
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const response = { start: startToken, end: endToken, chunk: initialEntries.slice().reverse(), state: [] };
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await gapWriter.writeFragmentFill(newEntry, response, txn, new NullLogger());
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const updatedLiveFragment = txn.timelineFragments.get(roomId, 0);
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assert.equal(updatedLiveFragment.previousId, null);
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const allEvents = await txn.timelineEvents._timelineStore.selectAll();
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let i = 0;
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for (const initialEntry of initialEntries) {
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assert.deepEqual(allEvents[i++].event, initialEntry);
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}
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assert.equal(allEvents.length, 10);
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},
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"An event received by sync does not interrupt backfilling": async assert => {
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const { txn, fragmentIdComparer, gapWriter, eventCreator } = await setup();
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const existingFragment = await createFragment(0, txn, fragmentIdComparer, { nextId: 1, nextToken: endToken });
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const liveFragment = await createFragment(1, txn, fragmentIdComparer, { previousId: 0, previousToken: startToken });
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const anotherFragment = await createFragment(2, txn, fragmentIdComparer);
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const newEntry = FragmentBoundaryEntry.start(liveFragment, fragmentIdComparer);
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const initialEntries = await prefillFragment(txn, eventCreator, existingFragment, 10);
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const [strayEntry] = await prefillFragment(txn, eventCreator, anotherFragment, 1);
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const response = eventCreator.createMessagesResponse();
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const originalEntries = response.chunk.slice();
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response.chunk.splice(response.chunk.length - 3, 0, initialEntries[5], strayEntry);
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await gapWriter.writeFragmentFill(newEntry, response, txn, null);
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const allEvents = await txn.timelineEvents._timelineStore.selectAll();
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let i = 0;
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for (const initialEntry of initialEntries) {
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const storedEvent = allEvents[i++];
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assert.deepEqual(initialEntry, storedEvent.event);
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}
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for (const originalEntry of originalEntries.reverse()) {
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const storedEvent = allEvents[i++];
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assert.deepEqual(originalEntry, storedEvent.event);
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}
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await assertWeakLink(assert, txn, 0, 1);
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},
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}
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}
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