Fix Smart Speed playback time contract

test/server/models/MediaProgress.test.js

@@ -0,0 +1,46 @@
+const { expect } = require('chai')
+const { Sequelize } = require('sequelize')
+
+const Database = require('../../../server/Database')
+
+describe('MediaProgress', () => {
+  beforeEach(async () => {
+    global.ServerSettings = {}
+    Database.sequelize = new Sequelize({ dialect: 'sqlite', storage: ':memory:', logging: false })
+    Database.sequelize.uppercaseFirst = (str) => (str ? `${str[0].toUpperCase()}${str.substr(1)}` : '')
+    await Database.buildModels()
+    await Database.sequelize.sync({ force: true })
+  })
+
+  afterEach(async () => {
+    await Database.sequelize.close()
+  })
+
+  it('marks progress finished using coherent wall-clock currentTime and duration values', async () => {
+    const user = await Database.userModel.create({
+      username: 'user1',
+      pash: 'hashed_password_1',
+      type: 'user',
+      isActive: true
+    })
+
+    const progress = await Database.mediaProgressModel.create({
+      userId: user.id,
+      mediaItemId: '00000000-0000-0000-0000-000000000001',
+      mediaItemType: 'book',
+      duration: 10,
+      currentTime: 0,
+      isFinished: false,
+      extraData: {}
+    })
+
+    await progress.applyProgressUpdate({
+      currentTime: 9.5,
+      duration: 10,
+      markAsFinishedTimeRemaining: 1
+    })
+
+    expect(progress.isFinished).to.equal(true)
+    expect(progress.progress).to.equal(0.95)
+  })
+})