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JustMock Profiler on Linux - Profiler not enabled

Hi there

We are trying to move our current build agents from Windows to Linux (Ubuntu 20.04) for all our dotnet6.0 applications and trying to integrate the JustMock Profiler on this machine because we depend on it in several tests.

Therefore, we followed your integration article "JustMock Integration on Linux".

We have copied the Profiler binaries to the build agent and referencing it through the environment variable:

root@8d248b92b005:/azp/Backend# printenv | grep 'CORE\|JUST'
CORECLR_PROFILER_PATH=/opt/TelerikJustMock/JustMock_2022_1_223_1_Dev/Libraries/CodeWeaver/64/libTelerik.CodeWeaver.Profiler.so
CORECLR_PROFILER={B7ABE522-A68F-44F2-925B-81E7488E9EC0}
JUSTMOCK_INSTANCE=1
CORECLR_ENABLE_PROFILING=1

The csproj definition for referencing the JustMock library looks (at the moment) like the following:

...
<ItemGroup>
    <Reference Include="Telerik.JustMock">
        <HintPath Condition="Exists('C:\Program Files (x86)\Progress\Telerik JustMock\Libraries\netcoreapp2.0\Telerik.JustMock.dll')">C:\Program Files (x86)\Progress\Telerik JustMock\Libraries\netcoreapp2.0\Telerik.JustMock.dll</HintPath>
        <HintPath Condition="Exists('/opt/TelerikJustMock/JustMock_2022_1_223_1_Dev/Libraries/netcoreapp2.0/Telerik.JustMock.dll')">/opt/TelerikJustMock/JustMock_2022_1_223_1_Dev/Libraries/netcoreapp2.0/Telerik.JustMock.dll</HintPath>
        <Private>True</Private>
    </Reference>
</ItemGroup>
...

In the tests we are calling the following method to check for the Profiler to be enabled:

public class Test_JustMockProfiler_Enabled
{
	[Fact]
	public void ProfilerMustBeEnabled()
	{
		Mock.IsProfilerEnabled.Should().BeTrue();
	}
}

Then running the tests with the 'dotnet test' command:

dotnet test /path/to/Tests.dll --no-build --no-restore -l:trx --results-directory ./TestResults/

But still we get the following error:

Error Message:
   Expected Mock.IsProfilerEnabled to be true, but found False.

Installed dotnet:

root@8d248b92b005:/azp/Backend# dotnet --info
.NET SDK (reflecting any global.json):
 Version:   6.0.402
 Commit:    6862418796

Runtime Environment:
 OS Name:     ubuntu
 OS Version:  20.04
 OS Platform: Linux
 RID:         ubuntu.20.04-x64
 Base Path:   /usr/share/dotnet/sdk/6.0.402/

global.json file:
  Not found

Host:
  Version:      6.0.10
  Architecture: x64
  Commit:       5a400c212a

.NET SDKs installed:
  6.0.402 [/usr/share/dotnet/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 6.0.10 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 6.0.10 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

Is there anything we are missing or doing wrong?
How do we properly enable the Profile on Linux to run in 'dotnet test'?

Thanks for your help in advance, cheers.

Continuous Integration

Integrations

updated answer on 13 Jan 2023

1 answer

379 views

Exception "The profiler must be enabled to mock, arrange or execute the specified target."

Hi there

We are facing an issue on our on-premise Azure DevOps build agents, where we have JustMock installed, since the version 2.0.13 from last Thursday 6th Oct. 2022 but also with the today's version 2.0.14.

Exception:

[xUnit.net 00:00:02.79]       Telerik.JustMock.Core.ElevatedMockingException : Cannot mock 'System.DateTime'. The profiler must be enabled to mock, arrange or execute the specified target.
[xUnit.net 00:00:02.79]       Stack Trace:
[xUnit.net 00:00:02.79]            at Telerik.JustMock.Core.ProfilerInterceptor.ThrowElevatedMockingException(MemberInfo member)
[xUnit.net 00:00:02.79]            at Telerik.JustMock.Core.MocksRepository.InterceptStatics(Type type, MockCreationSettings settings, Boolean mockStaticConstructor)
[xUnit.net 00:00:02.79]            at Telerik.JustMock.Core.CallPatternCreator.FromExpression(MocksRepository repository, Expression expr)
[xUnit.net 00:00:02.79]            at Telerik.JustMock.Core.MocksRepository.Arrange[TMethodMock](Expression expression, Func`1 methodMockFactory)
[xUnit.net 00:00:02.79]            at Telerik.JustMock.Mock.<>c__DisplayClass1_0`1.<Arrange>b__0()
[xUnit.net 00:00:02.79]            at Telerik.JustMock.Core.ProfilerInterceptor.GuardInternal[T](Func`1 guardedAction)
[xUnit.net 00:00:02.79]            at Telerik.JustMock.Mock.Arrange[TResult](Expression`1 expression)

We are using the task JustMockVSTest@2 and have no additional configurations for the JustMock Profiler set, like described in your integration guide: https://docs.telerik.com/devtools/justmock/integration/continuous-integration/tfs-azure/azure-devops

On the system there is the Profiler installed under "C:\Program Files (x86)\Progress\Telerik JustMock\Libraries\CodeWeaver\<bitness>\Telerik.CodeWeaver.Profiler.dll"

We see that the task is initializing the path to the Profiler (32bit and 64bit) to the $(System.DefaultWorkingDirectory) like:

Starting: VsTest - testAssemblies
==============================================================================
Task         : Telerik JustMock VSTest v.2
Description  : Use VSTest runner to run tests that are mocked with Telerik JustMock.
Version      : 2.7.1
Author       : Telerik
Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/test/vstest
==============================================================================
SystemVssConnection exists true
Setting up JustMock
======================================================
The specified path to 32 bit JustMock profiler is: D:\azagent\<organisation>\A1\_work\<build>\s
The specified path to 64 bit JustMock profiler is: D:\azagent\<organisation>\A1\_work\<build>\s
SystemVssConnection exists true
Running tests using vstest.console.exe runner.
======================================================

Before the Profiler was initialized with null:

Starting: VsTest - testAssemblies
==============================================================================
Task         : Telerik JustMock VSTest v.2
Description  : Use VSTest runner to run tests that are mocked with Telerik JustMock.
Version      : 2.6.1
Author       : Telerik
Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/test/vstest
==============================================================================
SystemVssConnection exists true
SystemVssConnection exists true
Setting up JustMock
======================================================
The specified path to 32 bit JustMock profiler is: null
The specified path to 64 bit JustMock profiler is: null
SystemVssConnection exists true
Running tests using vstest.console.exe runner.
======================================================

Is there anything we have to configure, like the absolute/relative path to the Profiler? Or is this a bug within the new release?

Thanks for your help.

Cheers

Continuous Integration

Integrations