Created
August 11, 2021 06:37
-
-
Save josephg/aa26cf2e8ed4199466be26db630a0899 to your computer and use it in GitHub Desktop.
Test if an OT type is closed udner composition
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| const genOp = require('./genOp') | |
| // const genOp = require('./genOp2') | |
| const {type} = require('ot-text-unicode') | |
| // const {type} = require('ot-text-tp2') | |
| const assert = require('assert') | |
| const genOps = (start, n = 3) => { | |
| let ops = [] | |
| let state = start | |
| for (let j = 0; j < n; j++) { | |
| [op, state] = genOp(state) | |
| ops.push(op) | |
| } | |
| return [ops, state] | |
| } | |
| const transformX = (left, right) => [ | |
| type.transform(left, right, 'left'), | |
| type.transform(right, left, 'right') | |
| ] | |
| function transformLists(serverOps, clientOps) { | |
| clientOps = clientOps.slice() // Shallow copy for inline replaces. | |
| const serverOpsOut = []; | |
| for (let s of serverOps) { | |
| for (let ci = 0; ci < clientOps.length; ci++) { | |
| [s, clientOps[ci]] = transformX(s, clientOps[ci]); | |
| } | |
| serverOpsOut.push(s); | |
| } | |
| return [serverOpsOut, clientOps]; | |
| } | |
| const test2 = () => { | |
| for (let i = 0; i < 1000; i++) { | |
| console.log(i) | |
| let start = type.create('aa') | |
| let a = genOp(start)[0] | |
| let bs = genOps(start, 2)[0] | |
| // let a = [1, 'X'] | |
| // let bs = [ | |
| // [{d: 'a'}], | |
| // ['Y'] | |
| // ] | |
| // We're testing is if | |
| // transform(a, b0 + b1) == transform(a, b0) + transform(a', b1) | |
| let [a1_, b1_] = transformLists([a], bs).map(x => x.reduce(type.compose)) | |
| const bCompose = bs.reduce(type.compose) | |
| let [a2_, b2_] = transformX(a, bCompose) | |
| assert.deepStrictEqual(a1_, a2_) | |
| assert.deepStrictEqual(b1_, b2_) | |
| } | |
| } | |
| const test = () => { | |
| // Test: | |
| // A and B both generate operations. | |
| // A transforms by B's operations composed together. | |
| // B transforms by A's operations one by one. | |
| for (let i = 0; i < 1000000; i++) { | |
| // for (let i = 0; i < 1; i++) { | |
| if (i % 10000 === 0) console.log(i) | |
| // console.log(i) | |
| let start = type.create('aa') | |
| let [aOps, aState] = genOps(start) | |
| let [bOps, bState] = genOps(start) | |
| // let [aOps, aState] = [ | |
| // [[1,"X"]], | |
| // "aXa" | |
| // ] | |
| // aState = aOps.reduce(type.apply, start) | |
| // console.log('aState', aState) | |
| // let [bOps, bState] = [ | |
| // [ | |
| // [{"d":"a"}], | |
| // ["Y"] | |
| // ], | |
| // "Ya" | |
| // ] | |
| // bState = bOps.reduce(type.apply, start) | |
| // console.log('bState', bState) | |
| let aOpsCompose = aOps.reduce(type.compose) | |
| let bOpsCompose = bOps.reduce(type.compose) | |
| // console.log(aOps, aOpsCompose) | |
| // A is the client. The client always streams operations one by one from the server. | |
| const [aOps_, bOps_] = transformLists(aOps, bOps) | |
| const aStateFinal = bOps_.reduce(type.apply, aState) | |
| // B is the server. The server transforms the clients' ops by the transformed local ops. | |
| // const aOpsCompose_ = aOps_.reduce(type.compose) | |
| // const bStateFinal = type.apply(bState, aOpsCompose_) | |
| const [aOps__, _] = transformLists(aOps, [bOpsCompose]) | |
| const bStateFinal = aOps__.reduce(type.apply, bState) | |
| try { | |
| assert.deepStrictEqual(aStateFinal, bStateFinal) | |
| } catch (e) { | |
| console.log('initial doc', start) | |
| console.log('aOps', aOps, '\n->', aOps_) | |
| console.log('bOps', bOps, '\n->', bOps_) | |
| console.log() | |
| console.log('aOpsCompose', aOpsCompose) | |
| // console.log('bOpsCompose', bOpsCompose) | |
| console.log() | |
| console.log('bOpsCompose', bOpsCompose) | |
| console.log('aOps__', aOps__) | |
| console.log('aOps_', aOps_) | |
| console.log() | |
| console.log('aStateFinal', aStateFinal) | |
| console.log('bStateFinal', bStateFinal) | |
| console.log() | |
| console.log('aState', JSON.stringify([aOps, aState])) | |
| console.log('bState', JSON.stringify([bOps, bState])) | |
| // console.log( | |
| throw e | |
| } | |
| } | |
| } | |
| test2() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment