use XunitLogger
MODIFY
src/Tests/Tests.csproj
src/Tests/Tests.csproj
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.1" />
<PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
<PackageReference Include="Xunit" Version="2.4.1" />
+ <PackageReference Include="XunitLogger" Version="2.1.0" />
<ProjectReference Include="..\TextCopy\TextCopy.csproj" />
</ItemGroup>
</Project>
\ No newline at end of file

use XunitLogger