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C# and .NET Core Test-Driven Development
book

C# and .NET Core Test-Driven Development

by Ayobami Adewole
May 2018
Intermediate to advanced content levelIntermediate to advanced
300 pages
7h 35m
English
Packt Publishing
Content preview from C# and .NET Core Test-Driven Development

Liskov Substitution Principle

 The Liskov Substitution Principle (LSP), which can sometimes referred to as Design by Contract, is the third of the SOLID principles and was first put forward by Barbara Liskov. LSP states that a derived or subclass should be substitutable for the base or superclass without having to make modifications to the base class or generating any runtime errors in the system.

LSP can be further explained using the following mathematical notation—let S be a subset of T, an object of T could be substituted for an object of S without breaking the existing working functionalities of the system or causing any type of errors.

To illustrate the concepts of LSP, let's consider a Car super class with a Drive method. If Car has ...

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Publisher Resources

ISBN: 9781788292481Supplemental Content