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Mastering PowerShell Scripting

You're reading from Mastering PowerShell Scripting Automate and manage your environment using PowerShell 7.1

Product type Paperback

Published in Jun 2021

Publisher Packt

ISBN-13 9781800206540

Length 788 pages

Edition 4th Edition

Languages

PowerShell

Tools

PowerShell

Concepts

System Administration

Author (1):

Chris Dent

View More author details

Table of Contents (26) Chapters

Preface

1. Introduction to PowerShell

2. Modules and Snap-Ins FREE CHAPTER

3. Working with Objects in PowerShell

4. Operators

5. Variables, Arrays, and Hashtables

6. Conditional Statements and Loops

7. Working with .NET

8. Strings, Numbers, and Dates

9. Regular Expressions

10. Files, Folders, and the Registry

11. Windows Management Instrumentation

12. Working with HTML, XML, and JSON

13. Web Requests and Web Services

14. Remoting and Remote Management

15. Asynchronous Processing

16. Graphical User Interfaces

17. Scripts, Functions, and Script Blocks

18. Parameters, Validation, and Dynamic Parameters

19. Classes and Enumerations

20. Building Modules

21. Testing

22. Error Handling

23. Debugging and Troubleshooting

24. Other Books You May Enjoy

25. Index

Testing with Pester

Pester is a framework for executing tests. It includes tools to define and execute test cases against anything that can be written in PowerShell.

This chapter focuses on Pester 5, the latest major release. Pester 5 is not installed by default; Windows ships with Pester 3.4. This pre-installed version can be ignored:

Install-Module Pester -Force -SkipPublisherCheck

The -SkipPublisherCheck parameter is required as Pester has changed maintainer since the version shipped with Windows was released. The certificate issued to the pre-installed version differs from the certificate issued to the current version.

You can use Pester to write tests for code and systems and everything in between. Pester is implemented as what is known as a Domain-Specific Language. It has specific functions that are implemented to behave like language keywords. For example, function is a language-specific keyword. Pester tests are written using PowerShell, but for the...

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Authors (1)

Chris Dent

Chris Dent

Chris Dent is an automation specialist with deep expertise in the PowerShell language. Chris is often found answering questions about PowerShell in both the UK and virtual PowerShell user groups. Chris has been developing in PowerShell since 2007 and has released several modules over the years.

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