yjs/tests/undo-redo.tests.js
Kevin Jahns b63d22e7db lint
2022-05-18 10:50:36 +02:00

375 lines
11 KiB
JavaScript

import { init, compare, applyRandomTests, Doc, UndoManager } from './testHelper.js' // eslint-disable-line
import * as Y from '../src/index.js'
import * as t from 'lib0/testing'
/**
* @param {t.TestCase} tc
*/
export const testUndoText = tc => {
const { testConnector, text0, text1 } = init(tc, { users: 3 })
const undoManager = new Y.UndoManager(text0)
// items that are added & deleted in the same transaction won't be undo
text0.insert(0, 'test')
text0.delete(0, 4)
undoManager.undo()
t.assert(text0.toString() === '')
// follow redone items
text0.insert(0, 'a')
undoManager.stopCapturing()
text0.delete(0, 1)
undoManager.stopCapturing()
undoManager.undo()
t.assert(text0.toString() === 'a')
undoManager.undo()
t.assert(text0.toString() === '')
text0.insert(0, 'abc')
text1.insert(0, 'xyz')
testConnector.syncAll()
undoManager.undo()
t.assert(text0.toString() === 'xyz')
undoManager.redo()
t.assert(text0.toString() === 'abcxyz')
testConnector.syncAll()
text1.delete(0, 1)
testConnector.syncAll()
undoManager.undo()
t.assert(text0.toString() === 'xyz')
undoManager.redo()
t.assert(text0.toString() === 'bcxyz')
// test marks
text0.format(1, 3, { bold: true })
t.compare(text0.toDelta(), [{ insert: 'b' }, { insert: 'cxy', attributes: { bold: true } }, { insert: 'z' }])
undoManager.undo()
t.compare(text0.toDelta(), [{ insert: 'bcxyz' }])
undoManager.redo()
t.compare(text0.toDelta(), [{ insert: 'b' }, { insert: 'cxy', attributes: { bold: true } }, { insert: 'z' }])
}
/**
* Test case to fix #241
* @param {t.TestCase} tc
*/
export const testDoubleUndo = tc => {
const doc = new Y.Doc()
const text = doc.getText()
text.insert(0, '1221')
const manager = new Y.UndoManager(text)
text.insert(2, '3')
text.insert(3, '3')
manager.undo()
manager.undo()
text.insert(2, '3')
t.compareStrings(text.toString(), '12321')
}
/**
* @param {t.TestCase} tc
*/
export const testUndoMap = tc => {
const { testConnector, map0, map1 } = init(tc, { users: 2 })
map0.set('a', 0)
const undoManager = new Y.UndoManager(map0)
map0.set('a', 1)
undoManager.undo()
t.assert(map0.get('a') === 0)
undoManager.redo()
t.assert(map0.get('a') === 1)
// testing sub-types and if it can restore a whole type
const subType = new Y.Map()
map0.set('a', subType)
subType.set('x', 42)
t.compare(map0.toJSON(), /** @type {any} */ ({ a: { x: 42 } }))
undoManager.undo()
t.assert(map0.get('a') === 1)
undoManager.redo()
t.compare(map0.toJSON(), /** @type {any} */ ({ a: { x: 42 } }))
testConnector.syncAll()
// if content is overwritten by another user, undo operations should be skipped
map1.set('a', 44)
testConnector.syncAll()
undoManager.undo()
t.assert(map0.get('a') === 44)
undoManager.redo()
t.assert(map0.get('a') === 44)
// test setting value multiple times
map0.set('b', 'initial')
undoManager.stopCapturing()
map0.set('b', 'val1')
map0.set('b', 'val2')
undoManager.stopCapturing()
undoManager.undo()
t.assert(map0.get('b') === 'initial')
}
/**
* @param {t.TestCase} tc
*/
export const testUndoArray = tc => {
const { testConnector, array0, array1 } = init(tc, { users: 3 })
const undoManager = new Y.UndoManager(array0)
array0.insert(0, [1, 2, 3])
array1.insert(0, [4, 5, 6])
testConnector.syncAll()
t.compare(array0.toArray(), [1, 2, 3, 4, 5, 6])
undoManager.undo()
t.compare(array0.toArray(), [4, 5, 6])
undoManager.redo()
t.compare(array0.toArray(), [1, 2, 3, 4, 5, 6])
testConnector.syncAll()
array1.delete(0, 1) // user1 deletes [1]
testConnector.syncAll()
undoManager.undo()
t.compare(array0.toArray(), [4, 5, 6])
undoManager.redo()
t.compare(array0.toArray(), [2, 3, 4, 5, 6])
array0.delete(0, 5)
// test nested structure
const ymap = new Y.Map()
array0.insert(0, [ymap])
t.compare(array0.toJSON(), [{}])
undoManager.stopCapturing()
ymap.set('a', 1)
t.compare(array0.toJSON(), [{ a: 1 }])
undoManager.undo()
t.compare(array0.toJSON(), [{}])
undoManager.undo()
t.compare(array0.toJSON(), [2, 3, 4, 5, 6])
undoManager.redo()
t.compare(array0.toJSON(), [{}])
undoManager.redo()
t.compare(array0.toJSON(), [{ a: 1 }])
testConnector.syncAll()
array1.get(0).set('b', 2)
testConnector.syncAll()
t.compare(array0.toJSON(), [{ a: 1, b: 2 }])
undoManager.undo()
t.compare(array0.toJSON(), [{ b: 2 }])
undoManager.undo()
t.compare(array0.toJSON(), [2, 3, 4, 5, 6])
undoManager.redo()
t.compare(array0.toJSON(), [{ b: 2 }])
undoManager.redo()
t.compare(array0.toJSON(), [{ a: 1, b: 2 }])
}
/**
* @param {t.TestCase} tc
*/
export const testUndoXml = tc => {
const { xml0 } = init(tc, { users: 3 })
const undoManager = new Y.UndoManager(xml0)
const child = new Y.XmlElement('p')
xml0.insert(0, [child])
const textchild = new Y.XmlText('content')
child.insert(0, [textchild])
t.assert(xml0.toString() === '<undefined><p>content</p></undefined>')
// format textchild and revert that change
undoManager.stopCapturing()
textchild.format(3, 4, { bold: {} })
t.assert(xml0.toString() === '<undefined><p>con<bold>tent</bold></p></undefined>')
undoManager.undo()
t.assert(xml0.toString() === '<undefined><p>content</p></undefined>')
undoManager.redo()
t.assert(xml0.toString() === '<undefined><p>con<bold>tent</bold></p></undefined>')
xml0.delete(0, 1)
t.assert(xml0.toString() === '<undefined></undefined>')
undoManager.undo()
t.assert(xml0.toString() === '<undefined><p>con<bold>tent</bold></p></undefined>')
}
/**
* @param {t.TestCase} tc
*/
export const testUndoEvents = tc => {
const { text0 } = init(tc, { users: 3 })
const undoManager = new Y.UndoManager(text0)
let counter = 0
let receivedMetadata = -1
undoManager.on('stack-item-added', /** @param {any} event */ event => {
t.assert(event.type != null)
t.assert(event.changedParentTypes != null && event.changedParentTypes.has(text0))
event.stackItem.meta.set('test', counter++)
})
undoManager.on('stack-item-popped', /** @param {any} event */ event => {
t.assert(event.type != null)
t.assert(event.changedParentTypes != null && event.changedParentTypes.has(text0))
receivedMetadata = event.stackItem.meta.get('test')
})
text0.insert(0, 'abc')
undoManager.undo()
t.assert(receivedMetadata === 0)
undoManager.redo()
t.assert(receivedMetadata === 1)
}
/**
* @param {t.TestCase} tc
*/
export const testTrackClass = tc => {
const { users, text0 } = init(tc, { users: 3 })
// only track origins that are numbers
const undoManager = new Y.UndoManager(text0, { trackedOrigins: new Set([Number]) })
users[0].transact(() => {
text0.insert(0, 'abc')
}, 42)
t.assert(text0.toString() === 'abc')
undoManager.undo()
t.assert(text0.toString() === '')
}
/**
* @param {t.TestCase} tc
*/
export const testTypeScope = tc => {
const { array0 } = init(tc, { users: 3 })
// only track origins that are numbers
const text0 = new Y.Text()
const text1 = new Y.Text()
array0.insert(0, [text0, text1])
const undoManager = new Y.UndoManager(text0)
const undoManagerBoth = new Y.UndoManager([text0, text1])
text1.insert(0, 'abc')
t.assert(undoManager.undoStack.length === 0)
t.assert(undoManagerBoth.undoStack.length === 1)
t.assert(text1.toString() === 'abc')
undoManager.undo()
t.assert(text1.toString() === 'abc')
undoManagerBoth.undo()
t.assert(text1.toString() === '')
}
/**
* @param {t.TestCase} tc
*/
export const testUndoInEmbed = tc => {
const { text0 } = init(tc, { users: 3 })
const undoManager = new Y.UndoManager(text0)
const nestedText = new Y.Text('initial text')
undoManager.stopCapturing()
text0.insertEmbed(0, nestedText, { bold: true })
t.assert(nestedText.toString() === 'initial text')
undoManager.stopCapturing()
nestedText.delete(0, nestedText.length)
nestedText.insert(0, 'other text')
t.assert(nestedText.toString() === 'other text')
undoManager.undo()
t.assert(nestedText.toString() === 'initial text')
undoManager.undo()
t.assert(text0.length === 0)
}
/**
* @param {t.TestCase} tc
*/
export const testUndoDeleteFilter = tc => {
/**
* @type {Y.Array<any>}
*/
const array0 = /** @type {any} */ (init(tc, { users: 3 }).array0)
const undoManager = new Y.UndoManager(array0, { deleteFilter: item => !(item instanceof Y.Item) || (item.content instanceof Y.ContentType && item.content.type._map.size === 0) })
const map0 = new Y.Map()
map0.set('hi', 1)
const map1 = new Y.Map()
array0.insert(0, [map0, map1])
undoManager.undo()
t.assert(array0.length === 1)
array0.get(0)
t.assert(Array.from(array0.get(0).keys()).length === 1)
}
/**
* This issue has been reported in https://discuss.yjs.dev/t/undomanager-with-external-updates/454/6
* @param {t.TestCase} tc
*/
export const testUndoUntilChangePerformed = tc => {
const doc = new Y.Doc()
const doc2 = new Y.Doc()
doc.on('update', update => Y.applyUpdate(doc2, update))
doc2.on('update', update => Y.applyUpdate(doc, update))
const yArray = doc.getArray('array')
const yArray2 = doc2.getArray('array')
const yMap = new Y.Map()
yMap.set('hello', 'world')
yArray.push([yMap])
const yMap2 = new Y.Map()
yMap2.set('key', 'value')
yArray.push([yMap2])
const undoManager = new Y.UndoManager([yArray], { trackedOrigins: new Set([doc.clientID]) })
const undoManager2 = new Y.UndoManager([doc2.get('array')], { trackedOrigins: new Set([doc2.clientID]) })
Y.transact(doc, () => yMap2.set('key', 'value modified'), doc.clientID)
undoManager.stopCapturing()
Y.transact(doc, () => yMap.set('hello', 'world modified'), doc.clientID)
Y.transact(doc2, () => yArray2.delete(0), doc2.clientID)
undoManager2.undo()
undoManager.undo()
t.compareStrings(yMap2.get('key'), 'value')
}
/**
* This issue has been reported in https://github.com/yjs/yjs/issues/317
* @param {t.TestCase} tc
*/
export const testUndoNestedUndoIssue = tc => {
const doc = new Y.Doc({ gc: false })
const design = doc.getMap()
const undoManager = new Y.UndoManager(design, { captureTimeout: 0 })
/**
* @type {Y.Map<any>}
*/
const text = new Y.Map()
const blocks1 = new Y.Array()
const blocks1block = new Y.Map()
doc.transact(() => {
blocks1block.set('text', 'Type Something')
blocks1.push([blocks1block])
text.set('blocks', blocks1block)
design.set('text', text)
})
const blocks2 = new Y.Array()
const blocks2block = new Y.Map()
doc.transact(() => {
blocks2block.set('text', 'Something')
blocks2.push([blocks2block])
text.set('blocks', blocks2block)
})
const blocks3 = new Y.Array()
const blocks3block = new Y.Map()
doc.transact(() => {
blocks3block.set('text', 'Something Else')
blocks3.push([blocks3block])
text.set('blocks', blocks3block)
})
t.compare(design.toJSON(), { text: { blocks: { text: 'Something Else' } } })
undoManager.undo()
t.compare(design.toJSON(), { text: { blocks: { text: 'Something' } } })
undoManager.undo()
t.compare(design.toJSON(), { text: { blocks: { text: 'Type Something' } } })
undoManager.undo()
t.compare(design.toJSON(), { })
undoManager.redo()
t.compare(design.toJSON(), { text: { blocks: { text: 'Type Something' } } })
undoManager.redo()
t.compare(design.toJSON(), { text: { blocks: { text: 'Something' } } })
undoManager.redo()
t.compare(design.toJSON(), { text: { blocks: { text: 'Something Else' } } })
}