Pester vs. ScriptRunner vs. TypeScript vs. Unlambda Comparison Chart

Pester is the ubiquitous test and mock framework for PowerShell. Adding Pester tests to Powershell code will enhance code quality and allows you to start creating predictable changes. Visual Studio Code comes with full support for Pester allowing you to create tests quickly. Pester integrates nicely with TFS, Azure, Github, Jenkins, and other CI servers, allowing you to fully automate your development lifecycle. Pester provides a framework for writing and running tests. Pester is most commonly used for writing unit and integration tests, but it is not limited to just that. It is also a base for tools that validate whole environments, computer deployments, database configurations, and so on. Pester tests can execute any command or script that is accessible to a Pester test file. This includes functions, Cmdlets, Modules, and scripts. Pester can be run locally, where it integrates well with Visual Studio Code, and it can of course be integrated into a build script in a CI pipeline.

TypeScript adds additional syntax to JavaScript to support a tighter integration with your editor. Catch errors early in your editor. TypeScript code converts to JavaScript, which runs anywhere JavaScript runs: In a browser, on Node.js or Deno and in your apps. TypeScript understands JavaScript and uses type inference to give you great tooling without additional code. TypeScript was used by 78% of the 2020 State of JS respondents, with 93% saying they would use it again. The most common kinds of errors that programmers write can be described as type errors: a certain kind of value was used where a different kind of value was expected. This could be due to simple typos, a failure to understand the API surface of a library, incorrect assumptions about runtime behavior, or other errors.