The code coverage data are processed according to the option selected in the Coverage page of the Settings/Preferences dialog box. To run with code coverage measurement. Do one of the following: Open the desired file in the editor, and choose Run with.
. 21 March 2018 If you have done any node.js development and have been required to hit code coverage marks prior to check in or CI/CD builds; you probably have used a tool like to check your percentages. Image from instabul.js.org Getting code coverage reports on the command line for.NET Core has been a gap, and unless you are using Visual Studio Test or a 3rd party pay for play; getting this information was still only Windows only. A few weeks ago I attended a hackathon at the Microsoft MVP Summit and saw a glimpse into from and he has hit the nail on the head! Using the quick test example on the docs site:. I created the project(s), added the coverlet NuGet package and ran dotnet test. Create the solution and projects.
# create the solution file dotnet new sln -n testing-coverlet # create the class library project dotnet new classlib -n PrimeService # create the mstest project dotnet new mstest -n PrimeService.Tests # add the projects to the solution file dotnet sln add././.csproj # add the reference to the classib project cd PrimeService.Tests dotnet add reference./PrimeService/PrimeService.csproj Copy the code examples from the. To add coverlet, it is just a NuGet package. So, just like any other we can add it to the PrimeServices.Tests project. Dotnet add package coverlet.msbuild And because it integrates directly with dotnet test there is no other work to do. Just run dotnet test and pass the parameter /p:CollectCoverage=true to enable the output.
And we get the output: Build completed. Test run for /PrimeService.Tests/bin/Debug/netcoreapp2.0/PrimeService.Tests.d ll(.NETCoreApp,Version=v2.0) Microsoft (R) Test Execution Command Line Tool Version 15.3.0-preview-20170628-02 Copyright (c) Microsoft Corporation. All rights reserved. Starting test execution, please wait. Total tests: 5. Test Run Successful.
Test execution time: 0.8314 Seconds Calculating coverage result. Generating report '/PrimeService.Tests/coverage.json' +-+-+ Module Coverage +-+-+ PrimeService 66% +-+-+ This is just the start of what I am sure to be much more to come. It is another open source, so contribute, and praise this work! My full example.
In my previous I demonstrated how to do code analysis to remove dead code from a project. Removing dead/unreachable code will help to improve the Code Coverage percentage. Code Coverage To determine what portion of your project's code is actually being tested by coded tests such as unit tests, you can use the Code Coverage feature of Visual Studio. Using the Code Coverage feature we can determine how much code is being tested and we can reduce the number of bugs.
Set Up Code Coverage The following is the procedure to set up Code Coverage in Visual Studio:. Double-click the 'Local.testsettings' file in the Solutions Items folder in the Solution Explorer window. In the 'Test Settings' dialog, choose the 'Data and Diagnostics' item. In the list of roles, select 'Code Coverage' and immediately click the 'Configure' button. In the 'Code Coverage Detail' dialog select the assemblies to instrument for Code Coverage.
Run your test scenario and in the 'Test Tools' toolbar, click the icon 'Code Coverage Results'.