Book Image

Modern C++ Programming Cookbook - Second Edition

By : Marius Bancila
5 (1)
Book Image

Modern C++ Programming Cookbook - Second Edition

5 (1)
By: Marius Bancila

Overview of this book

C++ has come a long way to be one of the most widely used general-purpose languages that is fast, efficient, and high-performance at its core. The updated second edition of Modern C++ Programming Cookbook addresses the latest features of C++20, such as modules, concepts, coroutines, and the many additions to the standard library, including ranges and text formatting. The book is organized in the form of practical recipes covering a wide range of problems faced by modern developers. The book also delves into the details of all the core concepts in modern C++ programming, such as functions and classes, iterators and algorithms, streams and the file system, threading and concurrency, smart pointers and move semantics, and many others. It goes into the performance aspects of programming in depth, teaching developers how to write fast and lean code with the help of best practices. Furthermore, the book explores useful patterns and delves into the implementation of many idioms, including pimpl, named parameter, and attorney-client, teaching techniques such as avoiding repetition with the factory pattern. There is also a chapter dedicated to unit testing, where you are introduced to three of the most widely used libraries for C++: Boost.Test, Google Test, and Catch2. By the end of the book, you will be able to effectively leverage the features and techniques of C++11/14/17/20 programming to enhance the performance, scalability, and efficiency of your applications.
Table of Contents (16 chapters)
Other Books You May Enjoy

Using fixtures in Boost.Test

The larger a test module is and the more similar the test cases are, the more likely it is to have test cases that require the same setup, cleanup, and maybe the same data. A component that contains these is called a test fixture or test context. Fixtures are important to establish a well-defined environment for running tests so that the results are repeatable. Examples can include copying a specific set of files to some location before executing the tests and deleting them after, or loading data from a particular data source.

Boost.Test provides several ways to define test fixtures for a test case, test suite, or a module (globally). In this recipe, we will look at how fixtures work.

Getting ready

The examples in this recipe use the following classes and functions for specifying test unit fixtures:

struct standard_fixture
  standard_fixture()  {BOOST_TEST_MESSAGE("setup");}
  ~standard_fixture() {BOOST_TEST_MESSAGE...