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109 lines
4 KiB
CoffeeScript
109 lines
4 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/DiffManager.js"
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SandboxedModule = require('sandboxed-module')
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describe "DiffManager", ->
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beforeEach ->
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@DiffManager = SandboxedModule.require modulePath, requires:
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"logger-sharelatex": @logger = { log: sinon.stub(), error: sinon.stub() }
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"./UpdatesManager": @UpdatesManager = {}
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"./DocumentUpdaterManager": @DocumentUpdaterManager = {}
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"./DiffGenerator": @DiffGenerator = {}
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@callback = sinon.stub()
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@from = new Date()
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@to = new Date(Date.now() + 10000)
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@project_id = "mock-project-id"
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@doc_id = "mock-doc-id"
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describe "getLatestDocAndUpdates", ->
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beforeEach ->
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@lines = [ "hello", "world" ]
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@version = 42
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@updates = [ "mock-update-1", "mock-update-2" ]
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@DocumentUpdaterManager.getDocument = sinon.stub().callsArgWith(2, null, @lines, @version)
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@UpdatesManager.getUpdates = sinon.stub().callsArgWith(2, null, @updates)
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@DiffManager.getLatestDocAndUpdates @project_id, @doc_id, @from, @to, @callback
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it "should get the latest version of the doc", ->
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@DocumentUpdaterManager.getDocument
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.calledWith(@project_id, @doc_id)
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.should.equal true
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it "should get the latest updates", ->
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@UpdatesManager.getUpdates
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.calledWith(@doc_id, from: @from, to: @to)
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.should.equal true
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it "should call the callback with the lines, version and updates", ->
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@callback.calledWith(null, @lines, @version, @updates).should.equal true
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describe "getDiff", ->
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beforeEach ->
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@lines = [ "hello", "world" ]
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# Op versions are the version they were applied to, so doc is always one version
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# ahead.s
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@version = 43
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@updates = [
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{ op: "mock-4", v: 42, meta: { start_ts: new Date(@to.getTime() + 20)} }
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{ op: "mock-3", v: 41, meta: { start_ts: new Date(@to.getTime() + 10)} }
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{ op: "mock-2", v: 40, meta: { start_ts: new Date(@to.getTime() - 10)} }
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{ op: "mock-1", v: 39, meta: { start_ts: new Date(@to.getTime() - 20)} }
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]
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@fromVersion = 39
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@toVersion = 40
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@diffed_updates = @updates.slice(2)
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@rewound_content = "rewound-content"
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@diff = [ u: "mock-diff" ]
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describe "with matching versions", ->
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beforeEach ->
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@DiffManager.getLatestDocAndUpdates = sinon.stub().callsArgWith(4, null, @lines, @version, @updates)
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@DiffGenerator.rewindUpdates = sinon.stub().returns(@rewound_content)
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@DiffGenerator.buildDiff = sinon.stub().returns(@diff)
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@DiffManager.getDiff @project_id, @doc_id, @fromVersion, @toVersion, @callback
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it "should get the latest doc and version with all recent updates", ->
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@DiffManager.getLatestDocAndUpdates
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.calledWith(@project_id, @doc_id, @fromVersion, null)
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.should.equal true
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it "should rewind the diff", ->
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@DiffGenerator.rewindUpdates
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.calledWith(@lines.join("\n"), @updates)
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.should.equal true
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it "should generate the diff", ->
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@DiffGenerator.buildDiff
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.calledWith(@rewound_content, @diffed_updates.reverse())
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.should.equal true
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it "should call the callback with the diff", ->
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@callback.calledWith(null, @diff).should.equal true
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describe "with mismatching versions", ->
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beforeEach ->
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@version = 50
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@updates = [ { op: "mock-1", v: 40 }, { op: "mock-1", v: 39 } ]
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@DiffManager.getLatestDocAndUpdates = sinon.stub().callsArgWith(4, null, @lines, @version, @updates)
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@DiffManager.getDiff @project_id, @doc_id, @fromVersion, @toVersion, @callback
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it "should call the callback with an error", ->
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@callback
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.calledWith(new Error("latest update version, 40, does not match doc version, 42"))
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.should.equal true
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describe "when the updates are inconsistent", ->
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beforeEach ->
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@DiffManager.getLatestDocAndUpdates = sinon.stub().callsArgWith(4, null, @lines, @version, @updates)
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@DiffGenerator.rewindUpdates = sinon.stub().throws(@error = new Error("inconsistent!"))
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@DiffManager.getDiff @project_id, @doc_id, @fromVersion, @toVersion, @callback
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it "should call the callback with an error", ->
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@callback
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.calledWith(@error)
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.should.equal true
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