<PackageReference Include="NUnit" Version="3.4.1" />

ParallelizableAttribute

public sealed class ParallelizableAttribute : PropertyAttribute, IApplyToContext
ParallelizableAttribute is used to mark tests that may be run in parallel.
public ParallelizableAttribute()

Construct a ParallelizableAttribute using default ParallelScope.Self.

public ParallelizableAttribute(ParallelScope scope)

Construct a ParallelizableAttribute with a specified scope.

public void ApplyToContext(TestExecutionContext context)

Modify the context to be used for child tests