JetBrains Rider 2026.3 Help

Testing Platform

JetBrains Rider can run tests from any custom test framework that uses Microsoft.Testing.Platform, such as TUnit.

Testing Platform support is enabled by default.

Use the checkbox at the top of this options page to enable or disable the discovery of the corresponding tests. In contrast to test frameworks natively supported by JetBrains Rider, tests from Testing Platform adapters are only discovered after test projects are built.

By default, the Testing Platform runner ignores projects supported by another enabled test provider, such as NUnit, MSTest, or xUnit. To use the Testing Platform runner for these projects, clear Ignore projects discovered by other providers.

04 November 2026