[Question] How to disable parallel execution with .Net

[davidhprotective]

I am using PW with .Net and currently my tests are running in parallel. How can I disable parallel running by default?

[ltsuda]

Are you using NUnit ?

As state in the following link, it runs tests in parallel by default but maybe if you set NUnit.NumberOfTestWorkers to 1 worker, the tests will not run in parallel. https://playwright.dev/dotnet/docs/test-runners#running-nunit-tests-in-parallel

Also, if you are running from Visual Studio, you can set NUnit.NumberOfTestWorkers to 1 in the .runsettings configuration file. https://playwright.dev/dotnet/docs/test-runners#using-the-runsettings-file

If this doesn't work, let's wait for someone from the Playwright team or someone who uses .NET and have the knowledge to share.

[davidhprotective]

I am using a combination of both xUnit and Specflow BDD so there are two entry points to the test execution when I run all tests together with dotnet run. I am looking if Playwright offers a solution to manage all tests in this case to run sequentially.

[mxschmitt]

Playwright in .NET is just a library, you can use whatever test-runner you want with it. We recommend nunit because it shown us to have the best support for parallelism compared to other test-runners.

See here for our recommended nunit setup: https://playwright.dev/dotnet/docs/test-runners#running-nunit-tests-in-parallel

Since we neither use Specflow nor xunit in Playwright for .NET we can't act on this but these links might be helpful:

• https://docs.specflow.org/projects/specflow/en/latest/Execution/Parallel-Execution.html
• https://xunit.net/docs/running-tests-in-parallel