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1799 lines (1503 loc) · 42.7 KB
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import {ReplicacheTest, httpStatusUnauthorized} from './replicache.js';
import type {ReplicacheOptions} from './replicache.js';
import {Replicache, TransactionClosedError} from './mod.js';
import type {ReadTransaction, WriteTransaction} from './mod.js';
import {deepEqual, JSONValue} from './json.js';
import {assert, expect} from '@esm-bundle/chai';
import * as sinon from 'sinon';
import type {SinonSpy} from 'sinon';
// fetch-mock has invalid d.ts file so we removed that on npm install.
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-expect-error
import fetchMock from 'fetch-mock/esm/client.js';
import {Invoke, RPC} from './repm-invoker.js';
import type {ScanOptions} from './scan-options.js';
import {SinonFakeTimers, useFakeTimers} from 'sinon';
let clock: SinonFakeTimers;
setup(function () {
clock = useFakeTimers(0);
});
teardown(function () {
clock.restore();
});
async function tickAFewTimes(n = 10, time = 10) {
for (let i = 0; i < n; i++) {
await clock.tickAsync(time);
}
}
fetchMock.config.overwriteRoutes = true;
const {fail} = assert;
let rep: ReplicacheTest | null = null;
let rep2: ReplicacheTest | null = null;
let overrideUseMemstore = false;
async function replicacheForTesting(
name: string,
{
pullURL = 'https://pull.com/?name=' + name,
pushDelay = 60_000, // Large to prevent interfering
pushURL = 'https://push.com/?name=' + name,
useMemstore = overrideUseMemstore,
...rest
}: ReplicacheOptions = {},
): Promise<ReplicacheTest> {
dbsToDrop.add(name);
const rep = new ReplicacheTest({
pullURL,
pushDelay,
pushURL,
name,
useMemstore,
...rest,
});
fetchMock.post(pullURL, {lastMutationID: 0, patch: []});
fetchMock.post(pushURL, {});
await tickAFewTimes();
return rep;
}
const dbsToDrop = new Set<string>();
async function addData(tx: WriteTransaction, data: {[key: string]: JSONValue}) {
for (const [key, value] of Object.entries(data)) {
await tx.put(key, value);
}
}
const emptyHash = '';
async function asyncIterableToArray<T>(it: AsyncIterable<T>) {
const arr: T[] = [];
for await (const v of it) {
arr.push(v);
}
return arr;
}
function spyInvoke(
rep: Replicache,
): SinonSpy<Parameters<Invoke>, ReturnType<Invoke>> {
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
return sinon.spy(rep, '_invoke');
}
teardown(async () => {
fetchMock.restore();
sinon.restore();
if (rep !== null && !rep.closed) {
await rep.close();
rep = null;
}
if (rep2 !== null && !rep2.closed) {
await rep2.close();
rep2 = null;
}
for (const name of dbsToDrop) {
indexedDB.deleteDatabase(name);
}
dbsToDrop.clear();
});
async function expectPromiseToReject(p: unknown): Promise<Chai.Assertion> {
let e;
try {
await p;
} catch (ex) {
e = ex;
}
return expect(e);
}
async function expectAsyncFuncToThrow(f: () => unknown, c: unknown) {
(await expectPromiseToReject(f())).to.be.instanceof(c);
}
function testWithBothStores(name: string, func: () => Promise<void>) {
for (const useMemstore of [false, true]) {
test(`${name} {useMemstore: ${useMemstore}}`, async () => {
try {
overrideUseMemstore = useMemstore;
await func();
} finally {
overrideUseMemstore = false;
}
});
}
}
testWithBothStores('get, has, scan on empty db', async () => {
rep = await replicacheForTesting('test2');
async function t(tx: ReadTransaction) {
expect(await tx.get('key')).to.equal(undefined);
expect(await tx.has('key')).to.be.false;
const scanItems = await asyncIterableToArray(tx.scan());
expect(scanItems).to.have.length(0);
}
await t(rep);
});
testWithBothStores('put, get, has, del inside tx', async () => {
rep = await replicacheForTesting('test3');
const mut = rep.register(
'mut',
async (tx: WriteTransaction, args: {key: string; value: JSONValue}) => {
const key = args['key'];
const value = args['value'];
await tx.put(key, value);
expect(await tx.has(key)).to.equal(true);
const v = await tx.get(key);
expect(v).to.deep.equal(value);
expect(await tx.del(key)).to.equal(true);
expect(await tx.has(key)).to.be.false;
},
);
for (const [key, value] of Object.entries({
a: true,
b: false,
c: null,
d: 'string',
e: 12,
f: {},
g: [],
h: {h1: true},
i: [0, 1],
})) {
await mut({key, value: value as JSONValue});
}
});
async function testScanResult<K, V>(
options: ScanOptions | undefined,
entries: [K, V][],
) {
if (!rep) {
fail();
return;
}
await rep.query(async tx => {
expect(
await asyncIterableToArray(tx.scan(options).entries()),
).to.deep.equal(entries);
});
await rep.query(async tx => {
expect(await asyncIterableToArray(tx.scan(options))).to.deep.equal(
entries.map(([, v]) => v),
);
});
await rep.query(async tx => {
expect(await asyncIterableToArray(tx.scan(options).values())).to.deep.equal(
entries.map(([, v]) => v),
);
});
await rep.query(async tx => {
expect(await asyncIterableToArray(tx.scan(options).keys())).to.deep.equal(
entries.map(([k]) => k),
);
});
}
testWithBothStores('scan', async () => {
rep = await replicacheForTesting('test4');
const add = rep.register('add-data', addData);
await add({
'a/0': 0,
'a/1': 1,
'a/2': 2,
'a/3': 3,
'a/4': 4,
'b/0': 5,
'b/1': 6,
'b/2': 7,
'c/0': 8,
});
await testScanResult(undefined, [
['a/0', 0],
['a/1', 1],
['a/2', 2],
['a/3', 3],
['a/4', 4],
['b/0', 5],
['b/1', 6],
['b/2', 7],
['c/0', 8],
]);
await testScanResult({prefix: 'a'}, [
['a/0', 0],
['a/1', 1],
['a/2', 2],
['a/3', 3],
['a/4', 4],
]);
await testScanResult({prefix: 'b'}, [
['b/0', 5],
['b/1', 6],
['b/2', 7],
]);
await testScanResult({prefix: 'c/'}, [['c/0', 8]]);
await testScanResult(
{
start: {key: 'b/1', exclusive: false},
},
[
['b/1', 6],
['b/2', 7],
['c/0', 8],
],
);
await testScanResult(
{
start: {key: 'b/1'},
},
[
['b/1', 6],
['b/2', 7],
['c/0', 8],
],
);
await testScanResult(
{
start: {key: 'b/1', exclusive: true},
},
[
['b/2', 7],
['c/0', 8],
],
);
await testScanResult(
{
limit: 3,
},
[
['a/0', 0],
['a/1', 1],
['a/2', 2],
],
);
await testScanResult(
{
limit: 10,
prefix: 'a/',
},
[
['a/0', 0],
['a/1', 1],
['a/2', 2],
['a/3', 3],
['a/4', 4],
],
);
await testScanResult(
{
limit: 1,
prefix: 'b/',
},
[['b/0', 5]],
);
});
testWithBothStores('subscribe', async () => {
const log: [string, JSONValue][] = [];
rep = await replicacheForTesting('subscribe');
let queryCallCount = 0;
const cancel = rep.subscribe(
async (tx: ReadTransaction) => {
queryCallCount++;
const rv = [];
for await (const entry of tx.scan({prefix: 'a/'}).entries()) {
rv.push(entry);
}
return rv;
},
{
onData: (values: Iterable<[string, JSONValue]>) => {
for (const entry of values) {
log.push(entry);
}
},
},
);
expect(log).to.have.length(0);
expect(queryCallCount).to.equal(0);
const add = rep.register('add-data', addData);
await add({'a/0': 0});
expect(log).to.deep.equal([['a/0', 0]]);
expect(queryCallCount).to.equal(2); // One for initial subscribe and one for the add.
// The body returns the same JSON value in the following case.
log.length = 0;
await add({'a/0': 0});
expect(log).to.deep.equal([]);
expect(queryCallCount).to.equal(3);
log.length = 0;
await add({'a/1': 1});
expect(log).to.deep.equal([
['a/0', 0],
['a/1', 1],
]);
expect(queryCallCount).to.equal(4);
log.length = 0;
log.length = 0;
await add({'a/1': 11});
expect(log).to.deep.equal([
['a/0', 0],
['a/1', 11],
]);
expect(queryCallCount).to.equal(5);
log.length = 0;
cancel();
await add({'a/1': 11});
await Promise.resolve();
expect(log).to.have.length(0);
expect(queryCallCount).to.equal(5);
});
testWithBothStores('subscribe close', async () => {
rep = await replicacheForTesting('subscribe-close');
const log: (JSONValue | undefined)[] = [];
const cancel = rep.subscribe((tx: ReadTransaction) => tx.get('k'), {
onData: value => log.push(value),
onDone: () => (done = true),
});
expect(log).to.have.length(0);
const add = rep.register('add-data', addData);
await add({k: 0});
await Promise.resolve();
expect(log).to.deep.equal([undefined, 0]);
let done = false;
await rep.close();
expect(done).to.equal(true);
cancel();
});
testWithBothStores('name', async () => {
const repA = await replicacheForTesting('a');
const repB = await replicacheForTesting('b');
const addA = repA.register('add-data', addData);
const addB = repB.register('add-data', addData);
await addA({key: 'A'});
await addB({key: 'B'});
expect(await repA.get('key')).to.equal('A');
expect(await repB.get('key')).to.equal('B');
await repA.close();
await repB.close();
indexedDB.deleteDatabase('a');
indexedDB.deleteDatabase('b');
});
testWithBothStores('register with error', async () => {
rep = await replicacheForTesting('regerr');
const doErr = rep.register(
'err',
async (_: WriteTransaction, args: number) => {
throw args;
},
);
try {
await doErr(42);
fail('Should have thrown');
} catch (ex) {
expect(ex).to.equal(42);
}
});
testWithBothStores('subscribe with error', async () => {
rep = await replicacheForTesting('suberr');
const add = rep.register('add-data', addData);
let gottenValue = 0;
let error;
const cancel = rep.subscribe(
async tx => {
const v = await tx.get('k');
if (v !== undefined && v !== null) {
throw v;
}
return null;
},
{
onData: () => {
gottenValue++;
},
onError: e => {
error = e;
},
},
);
await Promise.resolve();
expect(error).to.equal(undefined);
expect(gottenValue).to.equal(0);
await add({k: 'throw'});
expect(gottenValue).to.equal(1);
await Promise.resolve();
expect(error).to.equal('throw');
cancel();
});
testWithBothStores('overlapping writes', async () => {
async function dbWait(tx: ReadTransaction, dur: number) {
// Try to take setTimeout away from me???
const t0 = Date.now();
while (Date.now() - t0 > dur) {
await tx.get('foo');
}
}
const pushURL = 'https://push.com';
// writes wait on writes
rep = await replicacheForTesting('conflict', {pushURL});
fetchMock.post(pushURL, {});
const mut = rep.register(
'wait-then-return',
async <T extends JSONValue>(
tx: ReadTransaction,
{duration, ret}: {duration: number; ret: T},
) => {
await dbWait(tx, duration);
return ret;
},
);
let resA = mut({duration: 250, ret: 'a'});
// create a gap to make sure resA starts first (our rwlock isn't fair).
await clock.tickAsync(100);
let resB = mut({duration: 0, ret: 'b'});
// race them, a should complete first, indicating that b waited
expect(await Promise.race([resA, resB])).to.equal('a');
// wait for the other to finish so that we're starting from null state for next one.
await Promise.all([resA, resB]);
// reads wait on writes
resA = mut({duration: 250, ret: 'a'});
await clock.tickAsync(100);
resB = rep.query(() => 'b');
await tickAFewTimes();
expect(await Promise.race([resA, resB])).to.equal('a');
await tickAFewTimes();
await resA;
await tickAFewTimes();
await resB;
});
testWithBothStores('push', async () => {
const pushURL = 'https://push.com';
rep = await replicacheForTesting('push', {
pushAuth: '1',
pushURL,
pushDelay: 10,
});
let createCount = 0;
let deleteCount = 0;
const createTodo = rep.register(
'createTodo',
async <A extends {id: number}>(tx: WriteTransaction, args: A) => {
createCount++;
await tx.put(`/todo/${args.id}`, args);
},
);
const deleteTodo = rep.register(
'deleteTodo',
async <A extends {id: number}>(tx: WriteTransaction, args: A) => {
deleteCount++;
await tx.del(`/todo/${args.id}`);
},
);
const id1 = 14323534;
const id2 = 22354345;
await deleteTodo({id: id1});
await deleteTodo({id: id2});
expect(deleteCount).to.equal(2);
fetchMock.postOnce(pushURL, {
mutationInfos: [
{id: 1, error: 'deleteTodo: todo not found'},
{id: 2, error: 'deleteTodo: todo not found'},
],
});
await tickAFewTimes();
expect(deleteCount).to.equal(2);
const {mutations} = await fetchMock.lastCall().request.json();
expect(mutations).to.deep.equal([
{id: 1, name: 'deleteTodo', args: {id: id1}},
{id: 2, name: 'deleteTodo', args: {id: id2}},
]);
await createTodo({
id: id1,
text: 'Test',
});
expect(createCount).to.equal(1);
expect(((await rep?.get(`/todo/${id1}`)) as {text: string}).text).to.equal(
'Test',
);
fetchMock.postOnce(pushURL, {
mutationInfos: [{id: 3, error: 'mutation has already been processed'}],
});
await tickAFewTimes();
{
const {mutations} = await fetchMock.lastCall().request.json();
expect(mutations).to.deep.equal([
{id: 1, name: 'deleteTodo', args: {id: id1}},
{id: 2, name: 'deleteTodo', args: {id: id2}},
{id: 3, name: 'createTodo', args: {id: id1, text: 'Test'}},
]);
}
await createTodo({
id: id2,
text: 'Test 2',
});
expect(createCount).to.equal(2);
expect(((await rep?.get(`/todo/${id2}`)) as {text: string}).text).to.equal(
'Test 2',
);
// Clean up
await deleteTodo({id: id1});
await deleteTodo({id: id2});
expect(deleteCount).to.equal(4);
expect(createCount).to.equal(2);
fetchMock.postOnce(pushURL, {
mutationInfos: [],
});
await tickAFewTimes();
{
const {mutations} = await fetchMock.lastCall().request.json();
expect(mutations).to.deep.equal([
{id: 1, name: 'deleteTodo', args: {id: id1}},
{id: 2, name: 'deleteTodo', args: {id: id2}},
{id: 3, name: 'createTodo', args: {id: id1, text: 'Test'}},
{id: 4, name: 'createTodo', args: {id: id2, text: 'Test 2'}},
{id: 5, name: 'deleteTodo', args: {id: id1}},
{id: 6, name: 'deleteTodo', args: {id: id2}},
]);
}
expect(deleteCount).to.equal(4);
expect(createCount).to.equal(2);
});
testWithBothStores('push delay', async () => {
const pushURL = 'https://push.com';
rep = await replicacheForTesting('push', {
pushAuth: '1',
pushURL,
pushDelay: 1,
});
const createTodo = rep.register(
'createTodo',
async <A extends {id: number}>(tx: WriteTransaction, args: A) => {
await tx.put(`/todo/${args.id}`, args);
},
);
const id1 = 14323534;
await tickAFewTimes();
fetchMock.reset();
fetchMock.postOnce(pushURL, {
mutationInfos: [],
});
expect(fetchMock.calls()).to.have.length(0);
await createTodo({id: id1});
expect(fetchMock.calls()).to.have.length(0);
await tickAFewTimes();
expect(fetchMock.calls()).to.have.length(1);
});
testWithBothStores('pull', async () => {
const pullURL = 'https://diff.com/pull';
rep = await replicacheForTesting('pull', {
pullAuth: '1',
pullURL,
});
let createCount = 0;
let deleteCount = 0;
let syncHead: string;
let beginPullResult: {
requestID: string;
syncHead: string;
ok: boolean;
};
const createTodo = rep.register(
'createTodo',
async <A extends {id: number}>(tx: WriteTransaction, args: A) => {
createCount++;
await tx.put(`/todo/${args.id}`, args);
},
);
const deleteTodo = rep.register(
'deleteTodo',
async <A extends {id: number}>(tx: WriteTransaction, args: A) => {
deleteCount++;
await tx.del(`/todo/${args.id}`);
},
);
const id1 = 14323534;
const id2 = 22354345;
await deleteTodo({id: id1});
await deleteTodo({id: id2});
expect(deleteCount).to.equal(2);
fetchMock.postOnce(pullURL, {
cookie: '',
lastMutationID: 2,
patch: [
{op: 'del', key: ''},
{
op: 'put',
key: '/list/1',
value: {id: 1, ownerUserID: 1},
},
],
});
rep.pull();
await tickAFewTimes();
expect(deleteCount).to.equal(2);
fetchMock.postOnce(pullURL, {
cookie: '',
lastMutationID: 2,
patch: [],
});
beginPullResult = await rep.beginPull();
({syncHead} = beginPullResult);
expect(syncHead).to.equal(emptyHash);
expect(deleteCount).to.equal(2);
await createTodo({
id: id1,
text: 'Test',
});
expect(createCount).to.equal(1);
expect(((await rep?.get(`/todo/${id1}`)) as {text: string}).text).to.equal(
'Test',
);
fetchMock.postOnce(pullURL, {
cookie: '',
lastMutationID: 3,
patch: [
{
op: 'put',
key: '/todo/14323534',
value: {id: 14323534, text: 'Test'},
},
],
});
beginPullResult = await rep.beginPull();
({syncHead} = beginPullResult);
expect(syncHead).equal('vadlsm00t0h5n05204h6srdjama32lft');
await createTodo({
id: id2,
text: 'Test 2',
});
expect(createCount).to.equal(2);
expect(((await rep?.get(`/todo/${id2}`)) as {text: string}).text).to.equal(
'Test 2',
);
fetchMock.postOnce(pullURL, {
cookie: '',
lastMutationID: 3,
patch: [],
});
await rep.maybeEndPull(beginPullResult);
expect(createCount).to.equal(3);
// Clean up
await deleteTodo({id: id1});
await deleteTodo({id: id2});
expect(deleteCount).to.equal(4);
expect(createCount).to.equal(3);
fetchMock.postOnce(pullURL, {
cookie: '',
lastMutationID: 6,
patch: [{op: 'del', key: '/todo/14323534'}],
});
rep.pull();
await tickAFewTimes();
expect(deleteCount).to.equal(4);
expect(createCount).to.equal(3);
});
testWithBothStores('reauth', async () => {
const pullURL = 'https://diff.com/pull';
rep = await replicacheForTesting('reauth', {
pullURL,
pullAuth: 'wrong',
});
fetchMock.post(pullURL, {body: 'xxx', status: httpStatusUnauthorized});
const consoleErrorStub = sinon.stub(console, 'error');
const getPullAuthFake = sinon.fake.returns(null);
rep.getPullAuth = getPullAuthFake;
await rep.beginPull();
expect(getPullAuthFake.callCount).to.equal(1);
expect(consoleErrorStub.firstCall.args[0]).to.equal(
'Got error response from server (https://diff.com/pull) doing pull: 401: xxx',
);
{
const consoleInfoStub = sinon.stub(console, 'log');
const getPullAuthFake = sinon.fake(() => 'boo');
rep.getPullAuth = getPullAuthFake;
expect((await rep.beginPull()).syncHead).to.equal('');
expect(getPullAuthFake.callCount).to.equal(8);
expect(consoleInfoStub.firstCall.args[0]).to.equal(
'Tried to reauthenticate too many times',
);
}
});
testWithBothStores('HTTP status pull', async () => {
const pullURL = 'https://diff.com/pull';
rep = await replicacheForTesting('http-status-pull', {
pullURL,
});
let okCalled = false;
let i = 0;
fetchMock.post(pullURL, () => {
switch (i++) {
case 0:
return {body: 'internal error', status: 500};
case 1:
return {body: 'not found', status: 404};
default:
okCalled = true;
return {body: {lastMutationID: 0, patch: []}, status: 200};
}
});
const consoleErrorStub = sinon.stub(console, 'error');
rep.pull();
await tickAFewTimes(20, 10);
expect(consoleErrorStub.getCalls().map(o => o.args[0])).to.deep.equal([
'Got error response from server (https://diff.com/pull) doing pull: 500: internal error',
'Got error response from server (https://diff.com/pull) doing pull: 404: not found',
]);
expect(okCalled).to.equal(true);
});
testWithBothStores('HTTP status push', async () => {
const pushURL = 'https://diff.com/push';
rep = await replicacheForTesting('http-status-push', {
pushURL,
pushDelay: 1,
});
const add = rep.register('add-data', addData);
let okCalled = false;
let i = 0;
fetchMock.post(pushURL, () => {
switch (i++) {
case 0:
return {body: 'internal error', status: 500};
case 1:
return {body: 'not found', status: 404};
default:
okCalled = true;
return {body: {}, status: 200};
}
});
const consoleErrorStub = sinon.stub(console, 'error');
await add({
a: 0,
});
await tickAFewTimes(20, 10);
expect(consoleErrorStub.getCalls().map(o => o.args[0])).to.deep.equal([
'Got error response from server (https://diff.com/push) doing push: 500: internal error',
'Got error response from server (https://diff.com/push) doing push: 404: not found',
]);
expect(okCalled).to.equal(true);
});
testWithBothStores('closed tx', async () => {
rep = await replicacheForTesting('reauth');
let rtx: ReadTransaction;
await rep.query(tx => (rtx = tx));
await expectAsyncFuncToThrow(() => rtx.get('x'), TransactionClosedError);
await expectAsyncFuncToThrow(() => rtx.has('y'), TransactionClosedError);
await expectAsyncFuncToThrow(
() => rtx.scan().values().next(),
TransactionClosedError,
);
let wtx: WriteTransaction | undefined;
const mut = rep.register('mut', async tx => {
wtx = tx;
});
await mut();
expect(wtx).to.not.be.undefined;
await expectAsyncFuncToThrow(() => wtx?.put('z', 1), TransactionClosedError);
await expectAsyncFuncToThrow(() => wtx?.del('w'), TransactionClosedError);
});
testWithBothStores('pullInterval in constructor', async () => {
const rep = new Replicache({
pullInterval: 12.34,
});
expect(rep.pullInterval).to.equal(12.34);
await rep.close();
});
testWithBothStores('closeTransaction after rep.scan', async () => {
rep = await replicacheForTesting('test5');
const add = rep.register('add-data', addData);
await add({
'a/0': 0,
'a/1': 1,
});
const spy = spyInvoke(rep);
spy.resetHistory();
function expectCalls(l: JSONValue[]) {
expect(l).to.deep.equal(log);
const rpcs = spy.args.map(([rpc]) => rpc);
expect(rpcs).to.deep.equal([
RPC.OpenTransaction,
RPC.Scan,
RPC.CloseTransaction,
]);
}
const it = rep.scan();
const log: JSONValue[] = [];
for await (const v of it) {
log.push(v);
}
expectCalls([0, 1]);
// One more time with return in loop...
log.length = 0;
spy.resetHistory();
await (async () => {
if (!rep) {
fail();
}
const it = rep.scan();
for await (const v of it) {
log.push(v);
return;
}
})();
expectCalls([0]);
// ... and with a break.
log.length = 0;
spy.resetHistory();
{
const it = rep.scan();