CSC/ECE 517 Fall 2007/wiki3 1 sa

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Support for assertions in various o-o programming languages

Topic :Compare the support for assertions in various o-o programming languages. How well is it integrated with the language (instead of being supplied by libraries)? How many kinds of assertions are supported? How are assertions used in the various flavors of XUnit testing frameworks?

Introduction

Assertions are a way to implement testing in computer programming specified by the programmer to check for correctness in a program. Assertions are a systematic way to check that the internal state of a program is as the programmer expected, with the goal of catching bugs. In particular, they are good for catching false assumptions that were made while writing the code.

Depending on the programming language, assertions can either be a part of the design process or they could be statements which are checked at runtime

Support for assertions on various o-o programming languages

Java

C++

Ruby

Python

SmallTalk

Eiffel

XUnit testing frameworks and assertions

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