2/22/2023 0 Comments Visual studio code coverage toolJust go there and search for ReportGenerator: I don't know of a way to do this from Azure DevOps, which is odd, but you can do it from the Visual Studio Marketplace. If you want to quickly use the build scripts I'll show later in this article, you'll need the Azure DevOps extension installed in your organization. unit and integration tests), it's free and open source, and it integrates nicely with Azure DevOps. I like ReportGenerator because it supports multiple input and output formats, it can combine outputs from multiple test projects (e.g. ReportGenerator is an open source tool from Daniel Palme that you can install and run on your dev machine, or there's a free Azure DevOps extension you can install so that you can run code coverage tasks as part of your build pipeline. There's a lot of detail that can go into configuring code coverage, especially if you want to exclude some parts of the application or combine code coverage from multiple test projects, but these are outside the scope of this article. Code coverage ranges from 0 to 100% and there are many different tools available to measuring it, including built-in support in Visual Studio. Typically this means at least one test executed that line of code or that "code block." The percentage is then calculated based on number of lines/blocks hit by tests out of the total number of lines/blocks in the application. What is Code Coverage?īriefly, code coverage in this context refers to the percentage of the application's code that is "covered" by tests. That's what I'm doing here, with code coverage. That means you can easily copy/paste a working build configuration between projects, so once you get something working, it's easy to get more ROI for your time investment because you can add the functionality to many builds. Another really nice feature of modern Azure DevOps is that its builds are stored as text files ( YAML, in this case, but the format is less important than the fact it can be stored in source control rather than manually configured via a web interface). This is really nice because I have a bunch of open source projects and I understand the value provided by a good build server process. I'm mostly working with Azure DevOps for builds these days, as they've come a long way since the early TFS days and the hosted version is now free for open source projects. Recently I've been looking at different ways to generate code coverage reports during automated builds.
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