title: Developing and Validating Test Items
author:  Thomas M. Haladyna 
description: <P><STRONG>Thomas M. Haladyna</STRONG> is Professor Emeritus at Arizona State University, US.</P><B> <P></P> <P>Michael C. Rodriguez</B> is Associate Professor in the Department of Educational Psychology at the University of Minnesota, US. </P>
zlib_text: Writing Maintainable Unit Tests
  Mastering the art of loosely coupled unit tests
  Jan Van Ryswyck
  This book is for sale at http://leanpub.com/writing-maintainable-unit-tests
  This version was published on 2020-11-03
  This is a Leanpub book. Leanpub empowers authors and publishers with the Lean Publishing
  process. Lean Publishing is the act of publishing an in-progress ebook using lightweight tools and
  many iterations to get reader feedback, pivot until you have the right book and build traction once
  you do.
  © 2020 Jan Van Ryswyck
  
  Contents
  Chapter 1: Types of Automated Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  1
  Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  1
  But Why? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  1
  A Taxonomy of Tests
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  3
  Solitary and Sociable Test