Book Image

Learning TypeScript 2.x - Second Edition

By : Remo H. Jansen
Book Image

Learning TypeScript 2.x - Second Edition

By: Remo H. Jansen

Overview of this book

TypeScript is an open source and cross-platform statically typed superset of JavaScript that compiles to plain JavaScript and runs in any browser or host. This book is a step-by-step guide that will take you through the use and benefits of TypeScript with the help of practical examples. You will start off by understanding the basics as well as the new features of TypeScript 2.x. Then, you will learn how to work with functions and asynchronous programming APIs. You will continue by learning how to resolve runtime issues and how to implement TypeScript applications using the Object-oriented programming (OOP) and functional programming (FP) paradigms. Later, you will automate your development workflow with the help of tools such as Webpack. Towards the end of this book, you will delve into some real-world scenarios by implementing some full-stack TypeScript applications with Node.js, React and Angular as well as how to optimize and test them. Finally, you will be introduced to the internal APIs of the TypeScript compiler, and you will learn how to create custom code analysis tools.
Table of Contents (17 chapters)

Tests plans and test types

The term "test plan" is sometimes incorrectly used to refer to a test specification. While test specifications define the scenarios that will be tested and how they will be tested, a test plan is a collection of all the test specs for a given area.

It is recommended that you create an actual planning document, because a test plan can involve many processes, documents, and practices. One of the main goals of a test plan is to identify and define what kind of test is adequate for a component or set of components in an application. The following are the most commonly used test types.

Unit tests

These are used to test an isolated component. If the component is not isolated—that is, if...