overleaf/libraries/overleaf-editor-core/test/edit_operation.test.js

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const { expect } = require('chai')
const EditOperationBuilder = require('../lib/operation/edit_operation_builder')
const TextOperation = require('../lib/operation/text_operation')
const EditOperationTransformer = require('../lib/operation/edit_operation_transformer')
const EditOperation = require('../lib/operation/edit_operation')
const randomTextOperation = require('./support/random_text_operation')
const random = require('./support/random')
const AddCommentOperation = require('../lib/operation/add_comment_operation')
const DeleteCommentOperation = require('../lib/operation/delete_comment_operation')
const SetCommentStateOperation = require('../lib/operation/set_comment_state_operation')
const Range = require('../lib/range')
const EditNoOperation = require('../lib/operation/edit_no_operation')
describe('EditOperation', function () {
it('Cannot be instantiated', function () {
expect(() => new EditOperation()).to.throw(
'Cannot instantiate abstract class'
)
})
})
describe('EditOperationTransformer', function () {
it('Transforms two TextOperations', function () {
const a = new TextOperation().insert('foo')
const b = new TextOperation().insert('bar')
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(TextOperation)
expect(bPrime).to.be.an.instanceof(TextOperation)
})
it('Transforms TextOperation and EditNoOperation', function () {
const a = new TextOperation().insert('foo')
const b = new EditNoOperation()
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(TextOperation)
expect(bPrime).to.be.an.instanceof(EditNoOperation)
})
it('Transforms two AddCommentOperations with same commentId', function () {
const a = new AddCommentOperation('comm1', [new Range(0, 1)])
const b = new AddCommentOperation('comm1', [new Range(2, 3)])
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(EditNoOperation)
expect(bPrime).to.be.an.instanceof(AddCommentOperation)
})
it('Transforms two AddCommentOperations with different commentId', function () {
const a = new AddCommentOperation('comm1', [new Range(0, 1)])
const b = new AddCommentOperation('comm2', [new Range(2, 3)])
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(AddCommentOperation)
expect(aPrime.toJSON()).to.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(AddCommentOperation)
expect(bPrime.toJSON()).to.eql(b.toJSON())
})
it('Transforms two DeleteCommentOperations with same commentId', function () {
const a = new DeleteCommentOperation('comm1')
const b = new DeleteCommentOperation('comm1')
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(EditNoOperation)
expect(bPrime).to.be.an.instanceof(EditNoOperation)
})
it('Transforms two DeleteCommentOperations with different commentId', function () {
const a = new DeleteCommentOperation('comm1')
const b = new DeleteCommentOperation('comm2')
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(DeleteCommentOperation)
expect(aPrime.toJSON()).to.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(DeleteCommentOperation)
expect(bPrime.toJSON()).to.eql(b.toJSON())
})
it('Transforms AddCommentOperation and DeleteCommentOperation with same commentId', function () {
const a = new AddCommentOperation('comm1', [new Range(0, 1)])
const b = new DeleteCommentOperation('comm1')
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(EditNoOperation)
expect(bPrime).to.be.an.instanceof(DeleteCommentOperation)
expect(bPrime.toJSON()).to.eql(b.toJSON())
})
it('Transforms DeleteCommentOperation and AddCommentOperation with same commentId', function () {
const a = new DeleteCommentOperation('comm1')
const b = new AddCommentOperation('comm1', [new Range(0, 1)])
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(DeleteCommentOperation)
expect(aPrime.toJSON()).to.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(EditNoOperation)
})
it('Transforms AddCommentOperation and TextOperation', function () {
// abc hello[ world] xyz - insert(9, " world")
// abc hello |xyz| - addComment(10, 3, "comment_id")
const a = new TextOperation().retain(9).insert(' world')
const b = new AddCommentOperation('comm1', [new Range(10, 3)])
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(TextOperation)
expect(aPrime.toJSON()).to.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(AddCommentOperation)
expect(bPrime.toJSON()).to.eql({
commentId: 'comm1',
ranges: [{ pos: 16, length: 3 }],
})
})
it('Transforms TextOperation and AddCommentOperation', function () {
// abc hello |xyz| - addComment(10, 3, "comment_id")
// abc hello[ world] xyz - insert(9, " world")
const a = new AddCommentOperation('comm1', [new Range(10, 3)])
const b = new TextOperation().retain(9).insert(' world')
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(bPrime).to.be.an.instanceof(TextOperation)
expect(bPrime.toJSON()).to.eql(b.toJSON())
expect(aPrime).to.be.an.instanceof(AddCommentOperation)
expect(aPrime.toJSON()).to.eql({
commentId: 'comm1',
ranges: [{ pos: 16, length: 3 }],
})
})
it('Transforms AddCommentOperation and TextOperation that makes a detached comment', function () {
// [abc hello xyz] - delete(0, 13)
// abc |hello| xyz - addComment(5, 5, "comment_id")
const a = new TextOperation().remove(13)
const b = new AddCommentOperation('comm1', [new Range(5, 5)])
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(TextOperation)
expect(aPrime.toJSON()).to.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(AddCommentOperation)
expect(bPrime.toJSON()).to.eql({
commentId: 'comm1',
ranges: [],
})
})
it('Transforms AddCommentOperation and deletion TextOperation', function () {
// abc hell{o xy}z - retain(8).delete(4)
// abc hello |xyz| - addComment(10, 3, "comment_id")
// abc hell|z|
const a = new TextOperation().retain(8).remove(4)
const b = new AddCommentOperation('comm1', [new Range(10, 3)])
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(TextOperation)
expect(aPrime.toJSON()).to.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(AddCommentOperation)
expect(bPrime.toJSON()).to.eql({
commentId: 'comm1',
ranges: [{ pos: 8, length: 1 }],
})
})
it('Transforms AddCommentOperation and complex TextOperation', function () {
// [foo ]abc hell{o xy}z - insert(0, "foo ").retain(8).delete(4)
// abc hello |xyz| - addComment(10, 3, "comment_id")
// foo abc hell|z|
const a = new TextOperation().insert('foo ').retain(8).remove(4)
const b = new AddCommentOperation('comm1', [new Range(10, 3)])
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(TextOperation)
expect(aPrime.toJSON()).to.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(AddCommentOperation)
expect(bPrime.toJSON()).to.eql({
commentId: 'comm1',
ranges: [{ pos: 12, length: 1 }],
})
})
it('Transforms DeleteCommentOperation and TextOperation', function () {
const a = new TextOperation().retain(9).insert(' world')
const b = new DeleteCommentOperation('comm1')
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(TextOperation)
expect(aPrime.toJSON()).to.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(DeleteCommentOperation)
expect(bPrime.toJSON()).to.eql(b.toJSON())
})
it('Transforms SetCommentStateOperation and TextOperation', function () {
const a = new TextOperation().retain(9).insert(' world')
const b = new SetCommentStateOperation('comm1', true)
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(TextOperation)
expect(aPrime.toJSON()).to.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(SetCommentStateOperation)
expect(bPrime.toJSON()).to.eql(b.toJSON())
})
it('Transforms SetCommentStateOperation and AddCommentOperation', function () {
const a = new AddCommentOperation('comm1', [new Range(0, 1)])
const b = new SetCommentStateOperation('comm1', true)
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(AddCommentOperation)
expect(aPrime.toJSON()).to.deep.eql({
commentId: 'comm1',
ranges: [{ pos: 0, length: 1 }],
resolved: true,
})
expect(bPrime).to.be.an.instanceof(SetCommentStateOperation)
expect(bPrime.toJSON()).to.deep.eql(b.toJSON())
})
it('Transforms SetCommentStateOperation and DeleteCommentOperation', function () {
const a = new DeleteCommentOperation('comm1')
const b = new SetCommentStateOperation('comm1', true)
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(DeleteCommentOperation)
expect(aPrime.toJSON()).to.deep.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(EditNoOperation)
})
it('Transforms SetCommentStateOperation and SetCommentStateOperation', function () {
const a = new SetCommentStateOperation('comm1', false)
const b = new SetCommentStateOperation('comm1', true)
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime.toJSON()).to.deep.eql({
commentId: 'comm1',
resolved: false,
})
expect(bPrime).to.be.an.instanceof(EditNoOperation)
})
it('Transforms two SetCommentStateOperation with different commentId', function () {
const a = new SetCommentStateOperation('comm1', false)
const b = new SetCommentStateOperation('comm2', true)
const [aPrime, bPrime] = EditOperationTransformer.transform(a, b)
expect(aPrime).to.be.an.instanceof(SetCommentStateOperation)
expect(aPrime.toJSON()).to.deep.eql(a.toJSON())
expect(bPrime).to.be.an.instanceof(SetCommentStateOperation)
expect(bPrime.toJSON()).to.deep.eql(b.toJSON())
})
})
describe('EditOperationBuilder', function () {
it('Constructs TextOperation from JSON', function () {
const raw = {
textOperation: [1, 'foo', 3],
}
const op = EditOperationBuilder.fromJSON(raw)
expect(op).to.be.an.instanceof(TextOperation)
expect(op.toJSON()).to.deep.equal(raw)
})
it('Constructs AddCommentOperation from JSON', function () {
const raw = {
commentId: 'comm1',
ranges: [{ pos: 0, length: 1 }],
}
const op = EditOperationBuilder.fromJSON(raw)
expect(op).to.be.an.instanceof(AddCommentOperation)
expect(op.toJSON()).to.deep.equal(raw)
})
it('Constructs DeleteCommentOperation from JSON', function () {
const raw = {
deleteComment: 'comm1',
}
const op = EditOperationBuilder.fromJSON(raw)
expect(op).to.be.an.instanceof(DeleteCommentOperation)
expect(op.toJSON()).to.deep.equal(raw)
})
it('Constructs SetCommentStateOperation from JSON', function () {
const raw = {
commentId: 'comm1',
resolved: true,
}
const op = EditOperationBuilder.fromJSON(raw)
expect(op).to.be.an.instanceof(SetCommentStateOperation)
expect(op.toJSON()).to.deep.equal(raw)
})
it('Constructs EditNoOperation from JSON', function () {
const raw = { noOp: true }
const op = EditOperationBuilder.fromJSON(raw)
expect(op).to.be.an.instanceof(EditNoOperation)
expect(op.toJSON()).to.deep.equal(raw)
})
it('Throws error for unsupported operation', function () {
const raw = {
unsupportedOperation: {
op: 'foo',
},
}
expect(() => EditOperationBuilder.fromJSON(raw)).to.throw(
'Unsupported operation in EditOperationBuilder.fromJSON'
)
})
it('Constructs TextOperation from JSON (randomised)', function () {
const str = random.string(50)
const randomOperation = randomTextOperation(str)
const op = EditOperationBuilder.fromJSON(randomOperation.toJSON())
expect(op).to.be.an.instanceof(TextOperation)
expect(op.equals(randomOperation)).to.be.true
})
})