Book Image

Getting Started with V Programming

By : Navule Pavan Kumar Rao
4 (1)
Book Image

Getting Started with V Programming

4 (1)
By: Navule Pavan Kumar Rao

Overview of this book

A new language on the block, V comes with a promising set of features such as fast compilation and interoperability with other programming languages. This is the first book on the V programming language, packed with concise information and a walkthrough of all the features you need to know to get started with the language. The book begins by covering the fundamentals to help you learn about the basic features of V and the suite of built-in libraries available within the V ecosystem. You'll become familiar with primitive data types, declaring variables, arrays, and maps. In addition to basic programming, you'll develop a solid understanding of the building blocks of programming, including functions, structs, and modules in the V programming language. As you advance through the chapters, you'll learn how to implement concurrency in V Programming, and finally learn how to write test cases for functions. This book takes you through an end-to-end project that will guide you to build fast and maintainable RESTful microservices by leveraging the power of V and its built-in libraries. By the end of this V programming book, you'll be well-versed with the V programming language and be able to start writing your own programs and applications.
Table of Contents (19 chapters)
1
Section 1: Introduction to the V Programming Language
4
Section 2: Basics of V Programming
12
Section 3: Advanced Concepts in V Programming

Understanding testsuite functions

V facilitates writing pre- and post-test execution routines in the form of testsuite functions, namely testsuite_begin and testsuite_end, respectively:

  • testsuite_begin: This function will be helpful when you are planning to set up certain resources, such as data or environment variables, or create files if any are needed by the tests that are part of the test file.
  • testsuite_end: Alternatively, the testsuite_end function can be used to clean up the resources introduced by testsuite_begin. The testsuite_end function can be used to clean data and environment variables, or delete files if any are created during the test run.

Also, these testsuite functions neither accept input arguments nor specify a return type. These functions execute only once, but not for every test that is present in a test file. When you start running tests, the test runner will look for the presence of testsuite_begin and executes this function first. Similarly...