Could not find data collector 'XPlat Code Coverage' when targetting .dll

[captainjono]

> dotnet add package coverlet.collector
dotnet test my.csproj --collect:\"XPlat Code Coverage\" works. great!

dotnet test bin/debug/netcoreapp3.1/test.dll --collect:\"XPlat Code Coverage\"

Data collection : Unable to find a datacollector with friendly name 'XPlat Code Coverage'.
Data collection : Could not find data collector 'XPlat Code Coverage'

What am i missing here? Im writing a tool that integrates with coverage so i would like to support both scenarios.

dotnet --version = 5.0.101

[MarcoRossignoli]

Can you try with

dotnet vstest bin/debug/netcoreapp3.1/test.dll --collect:\"XPlat Code Coverage\"

As explained in guide for published project https://github.com/coverlet-coverage/coverlet/blob/master/Documentation/VSTestIntegration.md

[captainjono]

Can you explain why I cant use `dotnet test` ? [None of the examples here use]( https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-test) `vstest` ? Like i said, Im writing a tool that is supposed to let users execute any test written by any test framework. My understanding was `dotnet test` facilitated this. dotnet/docs#14786 (comment)

…

On Tue, Mar 16, 2021 at 7:26 PM Marco Rossignoli ***@***.***> wrote: Can you try with dotnet vstest bin/debug/netcoreapp3.1/test.dll --collect:\"XPlat Code Coverage\" As explained in guide for published project https://github.com/coverlet-coverage/coverlet/blob/master/Documentation/VSTestIntegration.md — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1118 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABOPWTVV7ERJJICP76OXUUDTD4I2TANCNFSM4YZNACLA> .

[MarcoRossignoli]

It's an implementation detail of test platform, we don't load collectors we implement one, you should open an issue and ask here https://github.com/microsoft/vstest/issues

[RussKie]

The solution is described here: #521 (comment)