feat: add snjs package

packages/snjs/mocha/preferences.test.js

@@ -0,0 +1,102 @@
+/* eslint-disable no-unused-expressions */
+/* eslint-disable no-undef */
+import * as Factory from './lib/factory.js'
+chai.use(chaiAsPromised)
+const expect = chai.expect
+
+describe('preferences', function () {
+  beforeEach(async function () {
+    localStorage.clear()
+    this.application = await Factory.createInitAppWithFakeCrypto()
+    this.email = UuidGenerator.GenerateUuid()
+    this.password = UuidGenerator.GenerateUuid()
+  })
+
+  afterEach(async function () {
+    await Factory.safeDeinit(this.application)
+    localStorage.clear()
+  })
+
+  function register() {
+    return Factory.registerUserToApplication({
+      application: this.application,
+      email: this.email,
+      password: this.password,
+    })
+  }
+
+  it('sets preference', async function () {
+    await this.application.setPreference('editorLeft', 300)
+    expect(this.application.getPreference('editorLeft')).to.equal(300)
+  })
+
+  it('saves preference', async function () {
+    await register.call(this)
+    await this.application.setPreference('editorLeft', 300)
+    await this.application.sync.sync()
+    this.application = await Factory.signOutAndBackIn(this.application, this.email, this.password)
+    const editorLeft = this.application.getPreference('editorLeft')
+    expect(editorLeft).to.equal(300)
+  }).timeout(10000)
+
+  it('clears preferences on signout', async function () {
+    await register.call(this)
+    await this.application.setPreference('editorLeft', 300)
+    await this.application.sync.sync()
+    this.application = await Factory.signOutApplicationAndReturnNew(this.application)
+    expect(this.application.getPreference('editorLeft')).to.equal(undefined)
+  })
+
+  it('returns default value for non-existent preference', async function () {
+    await register.call(this)
+    const editorLeft = this.application.getPreference('editorLeft', 100)
+    expect(editorLeft).to.equal(100)
+  })
+
+  it('emits an event when preferences change', async function () {
+    let callTimes = 0
+    this.application.addEventObserver(() => {
+      callTimes++
+    }, ApplicationEvent.PreferencesChanged)
+    callTimes += 1
+    await Factory.sleep(0) /** Await next tick */
+    expect(callTimes).to.equal(1) /** App start */
+    await register.call(this)
+    await this.application.setPreference('editorLeft', 300)
+    expect(callTimes).to.equal(2)
+  })
+
+  it('discards existing preferences when signing in', async function () {
+    await register.call(this)
+    await this.application.setPreference('editorLeft', 300)
+    await this.application.sync.sync()
+    this.application = await Factory.signOutApplicationAndReturnNew(this.application)
+    await this.application.setPreference('editorLeft', 200)
+    await this.application.signIn(this.email, this.password)
+    await this.application.sync.sync({ awaitAll: true })
+    const editorLeft = this.application.getPreference('editorLeft')
+    expect(editorLeft).to.equal(300)
+  })
+
+  it('reads stored preferences on start without waiting for syncing to complete', async function () {
+    const prefKey = 'editorLeft'
+    const prefValue = 300
+    const identifier = this.application.identifier
+
+    await register.call(this)
+    await this.application.setPreference(prefKey, prefValue)
+    await this.application.sync.sync()
+
+    await Factory.safeDeinit(this.application)
+
+    this.application = Factory.createApplicationWithFakeCrypto(identifier)
+    const willSyncPromise = new Promise((resolve) => {
+      this.application.addEventObserver(resolve, ApplicationEvent.WillSync)
+    })
+    Factory.initializeApplication(this.application)
+    await willSyncPromise
+
+    expect(this.application.preferencesService.preferences).to.exist
+    expect(this.application.getPreference(prefKey)).to.equal(prefValue)
+  })
+})