<PackageReference Include="NUnit" Version="4.3.1" />

ParallelizableAttribute

public class ParallelizableAttribute : PropertyAttribute, IApplyToContext
Marks a test assembly, fixture or method that may be run in parallel.
public ParallelScope Scope { get; }

Defines the degree to which this test and its descendants 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