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240 lines
6.6 KiB
CoffeeScript
240 lines
6.6 KiB
CoffeeScript
sinon = require('sinon')
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chai = require('chai')
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should = chai.should()
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expect = chai.expect
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modulePath = "../../../../app/js/HistoryBuilder.js"
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SandboxedModule = require('sandboxed-module')
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describe "HistoryBuilder", ->
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beforeEach ->
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@HistoryBuilder = SandboxedModule.require modulePath
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@user_id = "user-id-1"
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@other_user_id = "user-id-2"
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@ts1 = Date.now()
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@ts2 = Date.now() + 1000
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describe "compress", ->
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describe "insert - insert", ->
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it "should append one insert to the other", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, i: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 6, i: "bar" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, i: "foobar" ]
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meta: start_ts: @ts1, end_ts: @ts2, user_id: @user_id
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}]
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it "should insert one insert inside the other", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, i: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 5, i: "bar" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, i: "fobaro" ]
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meta: start_ts: @ts1, end_ts: @ts2, user_id: @user_id
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}]
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it "should not append separated inserts", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, i: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 9, i: "bar" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, i: "foo" ]
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meta: start_ts: @ts1, end_ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 9, i: "bar" ]
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meta: start_ts: @ts2, end_ts: @ts2, user_id: @user_id
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}]
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describe "delete - delete", ->
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it "should append one delete to the other", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, d: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 3, d: "bar" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, d: "foobar" ]
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meta: start_ts: @ts1, end_ts: @ts2, user_id: @user_id
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}]
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it "should insert one delete inside the other", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, d: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 1, d: "bar" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 1, d: "bafoor" ]
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meta: start_ts: @ts1, end_ts: @ts2, user_id: @user_id
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}]
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it "should not append separated deletes", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, d: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 9, d: "bar" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, d: "foo" ]
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meta: start_ts: @ts1, end_ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 9, d: "bar" ]
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meta: start_ts: @ts2, end_ts: @ts2, user_id: @user_id
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}]
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describe "insert - delete", ->
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it "should undo a previous insert", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, i: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 5, d: "o" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, i: "fo" ]
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meta: start_ts: @ts1, end_ts: @ts2, user_id: @user_id
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}]
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it "should remove part of an insert from the middle", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, i: "fobaro" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 5, d: "bar" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, i: "foo" ]
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meta: start_ts: @ts1, end_ts: @ts2, user_id: @user_id
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}]
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it "should cancel out two opposite updates", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, i: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 3, d: "foo" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal []
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it "should not combine separated updates", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, i: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 9, d: "bar" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, i: "foo" ]
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meta: start_ts: @ts1, end_ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 9, d: "bar" ]
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meta: start_ts: @ts2, end_ts: @ts2, user_id: @user_id
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}]
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describe "delete - insert", ->
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it "should redo a previous delete at the beginning", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, d: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 3, i: "f" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 4, d: "oo" ]
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meta: start_ts: @ts1, end_ts: @ts2, user_id: @user_id
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}]
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it "should redo a previous delete from halfway through", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, d: "foobar" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 3, i: "oo" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, d: "f" ]
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meta: start_ts: @ts1, end_ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 5, d: "bar" ]
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meta: start_ts: @ts2, end_ts: @ts2, user_id: @user_id
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}]
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it "should keep words together", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, d: "abcdefghijklmnopqrstuvwxyz hello world" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 3, i: "w" ]
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meta: ts: @ts2, user_id: @user_id
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}, {
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op: [ p: 4, i: "o" ]
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meta: ts: @ts2, user_id: @user_id
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}, {
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op: [ p: 5, i: "r" ]
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meta: ts: @ts2, user_id: @user_id
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}, {
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op: [ p: 6, i: "l" ]
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meta: ts: @ts2, user_id: @user_id
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}, {
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op: [ p: 7, i: "d" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, d: "abcdefghijklmnopqrstuvwxyz hello " ]
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meta: start_ts: @ts1, end_ts: @ts2, user_id: @user_id
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}]
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it "should not combine the ops if the insert text does not match the delete text", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, d: "foobar" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 3, i: "xy" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal [{
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op: [ p: 3, d: "foobar" ]
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meta: start_ts: @ts1, end_ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 3, i: "xy" ]
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meta: start_ts: @ts2, end_ts: @ts2, user_id: @user_id
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}]
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it "should cancel two equal updates", ->
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expect(@HistoryBuilder.compressUpdates [{
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op: [ p: 3, d: "foo" ]
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meta: ts: @ts1, user_id: @user_id
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}, {
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op: [ p: 3, i: "foo" ]
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meta: ts: @ts2, user_id: @user_id
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}])
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.to.deep.equal []
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