When I attempt to use the Run Functional Tests task after successfully executing the Visual Studio Test Agent Deployment task, the test run is aborting after a period of time with no actionable error reported.
2017-09-18T18:30:56.0416875Z ##[section]Starting: Run Functional Tests 2017-09-18T18:30:56.0436877Z ============================================================================== 2017-09-18T18:30:56.0436877Z Task : Run Functional Tests
2017-09-18T18:30:56.0436877Z Description : Run Coded UI/Selenium/Functional tests on a set of machines (using Test Agent)
2017-09-18T18:30:56.0446878Z Version : 1.0.53
2017-09-18T18:30:56.0446878Z Author : Microsoft Corporation
2017-09-18T18:30:56.0446878Z Help : [More Information]
(https://go.microsoft.com/fwlink/?LinkId=624389) 2017-09-18T18:30:56.0446878Z ===========================================================================
2017-09-18T18:30:56.0486882Z Preparing task execution handler.
2017-09-18T18:30:56.2957129Z Executing the powershell script:
C:\agent_work_tasks\RunVisualStudioTestsusingTestAgent_d353d6a2-e361-4a8f-8d8c-123bebb71028\1.0.53\RunDistributedTests.ps1
2017-09-18T18:30:58.2319065Z DistributedTests: Environment WinRm Protocol HTTP.
2017-09-18T18:30:58.2419075Z DistributedTests: Creating run for selected test assemblies with following parameters
2017-09-18T18:30:58.2419075Z DistributedTests: SourceFilter: ***test*.dll TestCaseFilter:
2017-09-18T18:30:58.2419075Z DistributedTests: Run title: TestRun_TEST - Agile-ASP.NET (PREVIEW)-CI_20170918.17
2017-09-18T18:30:58.2429076Z DistributedTests: is automated: True
2017-09-18T18:30:58.2429076Z DistributedTests: build location: E:\Websites\BuildTest\
2017-09-18T18:30:58.2429076Z DistributedTests: build id: 147
2017-09-18T18:30:58.2429076Z DistributedTests: test configuration mapping:
2017-09-18T18:30:59.1269960Z DistributedTests: Test Run with Id 4463 Queued
2017-09-18T18:30:59.3450178Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:31:09.6130445Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:31:19.8980729Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:31:30.1380968Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:31:40.4581287Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:31:50.6271455Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:32:00.8831710Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:32:11.0691895Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:32:21.3022127Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:32:31.6102434Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:32:41.8402663Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:32:52.4743296Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:33:02.7353556Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:33:13.0463866Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:33:23.4314250Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:33:33.6404458Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:33:44.0194836Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:33:54.6215437Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:34:04.9425757Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:34:15.1385952Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:34:26.2367049Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:34:36.1997011Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:34:46.4097220Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:34:56.6257435Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:35:06.9417750Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:35:17.7388546Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:35:27.4378244Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:35:37.6538459Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:35:47.8708675Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:35:58.1668970Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:36:08.3655493Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:36:18.5925493Z DistributedTests: Test run '4463' is in 'InProgress' state.
2017-09-18T18:36:28.8865493Z DistributedTests: Test run '4463' is in 'Aborted' state.
2017-09-18T18:36:38.8945493Z ##[warning]DistributedTests: Test run is aborted. Logging details of the run logs.
2017-09-18T18:36:39.1035493Z ##[warning]DistributedTests: New test run created.
2017-09-18T18:36:39.1045493Z Test Run queued for Project Collection Build Service
2017-09-18T18:36:39.1045493Z
2017-09-18T18:36:39.1055493Z ##[warning]DistributedTests: Test discovery started.
2017-09-18T18:36:39.1065493Z ##[warning]DistributedTests: Test Run Discovery Aborted . Test run id : 4463
2017-09-18T18:36:39.1085493Z ##[warning]DistributedTests: UnExpected error occurred during test execution. Try again.
2017-09-18T18:36:39.1095493Z ##[warning]DistributedTests: Error : NUnit VS Adapter 2.1.1.0 discovering test is finished
2017-09-18T18:36:39.1095493Z
2017-09-18T18:36:39.1105493Z ##[warning]DistributedTests: Test run aborted. Test run id: 4463
2017-09-18T18:36:39.1195493Z ##[error]System.Exception: The test run was aborted, failing the task.
2017-09-18T18:36:39.1715493Z ##[error]PowerShell script completed with 1 errors.
2017-09-18T18:36:39.1715493Z ##[section]Finishing: Run Functional Tests
These are the logs from deploying the Test Agent, where I can also see no issues, but I am including them for reference:
2017-09-18T18:24:59.2450114Z ##[section]Starting: Visual Studio Test Agent Deployment
2017-09-18T18:24:59.2470116Z
==============================================================================
2017-09-18T18:24:59.2470116Z Task : Visual Studio Test Agent Deployment
2017-09-18T18:24:59.2470116Z Description : Deploy and configure Test Agent to run tests on a set of machines
2017-09-18T18:24:59.2470116Z Version : 2.1.20
2017-09-18T18:24:59.2470116Z Author : Microsoft Corporation
2017-09-18T18:24:59.2470116Z Help : More Information
2017-09-18T18:24:59.2480117Z
==============================================================================
2017-09-18T18:25:01.7892658Z
****************************************************************
2017-09-18T18:25:01.7892658Z Task Input Information
2017-09-18T18:25:01.7902659Z ----------------------------------------------------------------
2017-09-18T18:25:01.7932662Z winRmProtocal = Http
2017-09-18T18:25:01.7932662Z testCertificate = true
2017-09-18T18:25:01.7952664Z runAsProcess = true
2017-09-18T18:25:01.7962665Z logonAutomatically = true
2017-09-18T18:25:01.7962665Z disableScreenSaver = true
2017-09-18T18:25:01.7972666Z isDataCollectionOnly = false
2017-09-18T18:25:01.7982667Z testPlatform = 15.0
2017-09-18T18:25:01.7992668Z agentLocation = \TestAgent\TestAgent.zip
2017-09-18T18:25:01.8002669Z updateTestAgent = false
2017-09-18T18:25:01.8072676Z
****************************************************************
2017-09-18T18:25:02.4813350Z Starting to deploy and configure test agent on test machines.
2017-09-18T18:25:02.4813350Z Inputs provided are:
2017-09-18T18:25:02.4813350Z Use HTTP Port: True
2017-09-18T18:25:02.4813350Z Disable Screen saver: True
2017-09-18T18:25:02.4823351Z Login Automatically: True
2017-09-18T18:25:02.4823351Z Run as process: True
2017-09-18T18:25:02.4823351Z Agent location: \TestAgent\TestAgent.zip
2017-09-18T18:25:02.4823351Z Update test agent: False
2017-09-18T18:25:02.4823351Z Run test agent as DataCollection only : False
2017-09-18T18:25:02.5973466Z Task 'VerifyTestAgentInstalled' on machine is being run
2017-09-18T18:25:07.8168685Z Deployment started on target machine...
2017-09-18T18:25:07.8168685Z
2017-09-18T18:25:07.8168685Z Query for Testplatfrom version: 15.0
2017-09-18T18:25:07.8168685Z
2017-09-18T18:25:07.8168685Z Testing container: 'REGISTRY::HKEY_CLASSES_ROOT\CLSID{177F0C4A-1CD3-4DE7-A32C-71DBBB9FA36D}'
2017-09-18T18:25:07.8168685Z
2017-09-18T18:25:07.8168685Z Exists.
2017-09-18T18:25:07.8178686Z
2017-09-18T18:25:07.8178686Z Getting Visual Studio setup instances.
2017-09-18T18:25:07.8178686Z
2017-09-18T18:25:07.8178686Z Found 1 instances.
2017-09-18T18:25:07.8178686Z
2017-09-18T18:25:07.8178686Z
2017-09-18T18:25:07.8178686Z
2017-09-18T18:25:07.8178686Z Description : Supports running automated tests and load tests remotely
2017-09-18T18:25:07.8188687Z DisplayName : Visual Studio Test Agent 2017
2017-09-18T18:25:07.8188687Z Id : c7ded16e
2017-09-18T18:25:07.8188687Z InstallDate : System.Runtime.InteropServices.ComTypes.FILETIME
2017-09-18T18:25:07.8188687Z Name : VisualStudio/15.3.4+26730.15
2017-09-18T18:25:07.8188687Z Path : C:\TestAgent2017
2017-09-18T18:25:07.8188687Z Version : 15.3.26730.15
2017-09-18T18:25:07.8198688Z VersionString : 15.3.26730.15
2017-09-18T18:25:07.8198688Z
2017-09-18T18:25:07.8198688Z
2017-09-18T18:25:07.8198688Z
2017-09-18T18:25:07.8198688Z
2017-09-18T18:25:07.8198688Z
2017-09-18T18:25:07.8198688Z Test Agent already exists
2017-09-18T18:25:07.8198688Z
2017-09-18T18:25:07.8198688Z Version: 15.3.26730.15
2017-09-18T18:25:07.8208689Z
2017-09-18T18:25:07.8208689Z DTAAgentExecutionService is not present on the machine
2017-09-18T18:25:07.8208689Z
2017-09-18T18:25:07.8208689Z DTAExecutionHost is not running
2017-09-18T18:25:07.8208689Z
2017-09-18T18:25:07.8208689Z
2017-09-18T18:25:07.8208689Z RemoteDeployerSource Verbose: 2 : [RemoteDeployer]
[18:Sep:17:15:25:5:1565; 7084, 4] Created public key for communication
2017-09-18T18:25:07.8218690Z RemoteDeployerSource Information: 12 :
[RemoteDeployer][18:Sep:17:15:25:5:1565; 7084, 4] Deployment service - VisualStudioRemoteDeployerc612dfc5-c424-4fda-ae9a-cd2f906bce94 is running...
2017-09-18T18:25:07.8228691Z RemoteDeployerSource Verbose: 4 : [RemoteDeployer][18:Sep:17:15:25:6:1861; 7084, 6] Input file found
2017-09-18T18:25:07.8228691Z RemoteDeployerSource Verbose: 5 : [RemoteDeployer][18:Sep:17:15:25:6:1861; 7084, 6] Reading input parameters
2017-09-18T18:25:07.8238692Z RemoteDeployerSource Verbose: 6 : [RemoteDeployer]
[18:Sep:17:15:25:6:2017; 7084, 6] Finished reading input parameters 2017-09-18T18:25:07.8238692Z
2017-09-18T18:25:07.8238692Z Task 'VerifyTestAgentInstalled' on machine completed.
2017-09-18T18:25:08.8289697Z Task 'CopyFilesToTestAgent' on machine is being run
2017-09-18T18:25:09.7900658Z
2017-09-18T18:25:09.7900658Z \ was deleted successfully.
2017-09-18T18:25:09.7900658Z
2017-09-18T18:25:09.7900658Z Copying recursively from C:\agent_work_tasks\DeployVisualStudioTestAgent_52a38a6a-1517-41d7-96cc-73ee0c60d2b6\2.1.20\TestExecution.zip to C:\TestAgent on machine succeeded.
2017-09-18T18:25:09.7910659Z
2017-09-18T18:25:09.7910659Z \ was deleted successfully.
2017-09-18T18:25:09.7910659Z
2017-09-18T18:25:09.7910659Z
2017-09-18T18:25:09.7910659Z Task 'CopyFilesToTestAgent' on machine completed.
2017-09-18T18:25:09.7950663Z Task 'SetupTestMachineForUiTests' on machine is being run
2017-09-18T18:26:09.7980660Z Task 'SetupTestMachineForUiTests' on machine is taking time. Please Wait
2017-09-18T18:27:09.7860642Z Task 'SetupTestMachineForUiTests' on machine is taking time. Please Wait
2017-09-18T18:28:09.7890639Z Task 'SetupTestMachineForUiTests' on machine is taking time. Please Wait
2017-09-18T18:29:09.7920636Z Task 'SetupTestMachineForUiTests' on machine is taking time. Please Wait
2017-09-18T18:29:59.6180457Z Deployment started on target machine...
2017-09-18T18:29:59.6200459Z
2017-09-18T18:29:59.6200459Z Test User
2017-09-18T18:29:59.6200459Z 2017-09-18T18:29:59.6210460Z Test UserDomain
2017-09-18T18:29:59.6230462Z 2017-09-18T18:29:59.6240463Z Executing command : powercfg.exe /Change monitor-timeout-ac 0 ; powercfg.exe /Change monitor-timeout-dc 0
2017-09-18T18:29:59.6260465Z
2017-09-18T18:29:59.6260465Z Error :
2017-09-18T18:29:59.6270466Z
2017-09-18T18:29:59.6280467Z Output :
2017-09-18T18:29:59.6280467Z
2017-09-18T18:29:59.6280467Z Updating machine reboot count to : 1
2017-09-18T18:29:59.6280467Z
2017-09-18T18:29:59.6290468Z Currently test user is not logged in. Rebooting machine.
2017-09-18T18:29:59.6290468Z
2017-09-18T18:29:59.6290468Z Enabling auto logon
2017-09-18T18:29:59.6290468Z
2017-09-18T18:29:59.6290468Z 2017-09-18T18:29:59.6310470Z Deployment started on target machine...
2017-09-18T18:29:59.6310470Z 2017-09-18T18:29:59.6310470Z Test User
2017-09-18T18:29:59.6310470Z
2017-09-18T18:29:59.6310470Z Test UserDomain
2017-09-18T18:29:59.6320471Z 2017-09-18T18:29:59.6320471Z Executing command : powercfg.exe /Change monitor-timeout-ac 0 ; powercfg.exe /Change monitor-timeout-dc 0
2017-09-18T18:29:59.6320471Z
2017-09-18T18:29:59.6320471Z Error :
2017-09-18T18:29:59.6330472Z
2017-09-18T18:29:59.6330472Z Output :
2017-09-18T18:29:59.6330472Z
2017-09-18T18:29:59.6330472Z Configuration for UI testing is completed
2017-09-18T18:29:59.6330472Z
2017-09-18T18:29:59.6330472Z
2017-09-18T18:29:59.6340473Z 5:11:9740; 428, 4] Created public key for communication
2017-09-18T18:29:59.6340473Z RemoteDeployerSource Information: 12 : [RemoteDeployer][18:Sep:17:15:25:11:9896; 428, 4] Deployment service - VisualStudioRemoteDeployerd61e768d-1f6c-4de3-912b-ba961a2bb337 is running...
2017-09-18T18:29:59.6350474Z RemoteDeployerSource Verbose: 4 : [RemoteDeployer][18:Sep:17:15:25:13:0036; 428, 6] Input file found
2017-09-18T18:29:59.6360475Z RemoteDeployerSource Verbose: 5 : [RemoteDeployer][18:Sep:17:15:25:13:0036; 428, 6] Reading input parameters
2017-09-18T18:29:59.6360475Z RemoteDeployerSource Verbose: 6 : [RemoteDeployer][18:Sep:17:15:25:13:0192; 428, 6] Finished reading input parameters
2017-09-18T18:29:59.6370476Z
2017-09-18T18:29:59.6370476Z Task 'SetupTestMachineForUiTests' on machine completed.
2017-09-18T18:29:59.6390478Z Task 'TestAgentConfiguration' on machine is being run
2017-09-18T18:30:44.9905825Z Deployment started on target machine...
2017-09-18T18:30:44.9905825Z
2017-09-18T18:30:44.9915826Z Test User
2017-09-18T18:30:44.9915826Z 2017-09-18T18:30:44.9915826Z Test UserDomain
2017-09-18T18:30:44.9915826Z 2017-09-18T18:30:44.9925827Z Testing container: 'REGISTRY::HKEY_CLASSES_ROOT\CLSID{177F0C4A-1CD3-4DE7-A32C-71DBBB9FA36D}'
2017-09-18T18:30:44.9925827Z
2017-09-18T18:30:44.9925827Z Exists.
2017-09-18T18:30:44.9935828Z
2017-09-18T18:30:44.9935828Z Getting Visual Studio setup instances.
2017-09-18T18:30:44.9935828Z
2017-09-18T18:30:44.9935828Z Found 1 instances.
2017-09-18T18:30:44.9945829Z
2017-09-18T18:30:44.9945829Z
2017-09-18T18:30:44.9945829Z
2017-09-18T18:30:44.9945829Z Description : Supports running automated tests and load tests remotely
2017-09-18T18:30:44.9955830Z DisplayName : Visual Studio Test Agent 2017
2017-09-18T18:30:44.9955830Z Id : c7ded16e
2017-09-18T18:30:44.9965831Z InstallDate : System.Runtime.InteropServices.ComTypes.FILETIME
2017-09-18T18:30:44.9965831Z Name : VisualStudio/15.3.4+26730.15
2017-09-18T18:30:44.9975832Z Path : C:\TestAgent2017
2017-09-18T18:30:44.9975832Z Version : 15.3.26730.15
2017-09-18T18:30:44.9985833Z VersionString : 15.3.26730.15
2017-09-18T18:30:44.9985833Z
2017-09-18T18:30:44.9985833Z
2017-09-18T18:30:44.9985833Z
2017-09-18T18:30:44.9985833Z
2017-09-18T18:30:44.9985833Z
2017-09-18T18:30:44.9995834Z VS path C:\TestAgent2017\Common7\IDE; Test window path C:\TestAgent2017\Common7\IDE\CommonExtensions\Microsoft\TestWindow
2017-09-18T18:30:44.9995834Z
2017-09-18T18:30:45.0025837Z Path:
C:\TestAgent\TfsAssemblies\Newtonsoft.Json.dll
2017-09-18T18:30:45.0025837Z
2017-09-18T18:30:45.0035838Z Loading module from path
'C:\TestAgent\TfsAssemblies\Newtonsoft.Json.dll'.
2017-09-18T18:30:45.0035838Z
2017-09-18T18:30:45.0045839Z Loading module from path
'C:\TestAgent\TfsAssemblies\System.Net.Http.Formatting.dll'.
2017-09-18T18:30:45.0045839Z
2017-09-18T18:30:45.0075842Z Loading module from path
'C:\TestAgent\TfsAssemblies\Microsoft.TeamFoundation.DistributedTask.Task.TestExecution.dll'.
2017-09-18T18:30:45.0085843Z
2017-09-18T18:30:45.0095844Z Loading module from path
'C:\TestAgent\TfsAssemblies\Microsoft.TeamFoundation.Common.dll'.
2017-09-18T18:30:45.0105845Z
2017-09-18T18:30:45.0105845Z Loading module from path
'C:\TestAgent\TfsAssemblies\Microsoft.TeamFoundation.Test.WebApi.dll'.
2017-09-18T18:30:45.0115846Z
2017-09-18T18:30:45.0135848Z Loading module from path
'C:\TestAgent\TfsAssemblies\Microsoft.VisualStudio.Services.Common.dll'.
2017-09-18T18:30:45.0135848Z
2017-09-18T18:30:45.0145849Z Loading module from path
'C:\TestAgent\TfsAssemblies\Microsoft.VisualStudio.Services.WebApi.dll'.
2017-09-18T18:30:45.0145849Z
2017-09-18T18:30:45.0155850Z Loading module from path
'C:\TestAgent\PrivateAssemblies\MS.VS.TestService.Client.Utility.dll'.
2017-09-18T18:30:45.0165851Z
2017-09-18T18:30:45.0165851Z
****************************************************************
2017-09-18T18:30:45.0165851Z
2017-09-18T18:30:45.0165851Z Configure Test Agent
2017-09-18T18:30:45.0165851Z
2017-09-18T18:30:45.0175852Z ----------------------------------------------------------------
2017-09-18T18:30:45.0175852Z
2017-09-18T18:30:45.0175852Z SetupPath : (C:\TestAgent)
2017-09-18T18:30:45.0175852Z
2017-09-18T18:30:45.0175852Z
2017-09-18T18:30:45.0185853Z AsServiceOrProcess : (Process)
2017-09-18T18:30:45.0185853Z
2017-09-18T18:30:45.0185853Z EnvironmentUrl : (dta://env/39a888b4-a200-42b4-8866-eaedb1da410a/_apis//201709181525023083)
2017-09-18T18:30:45.0185853Z
2017-09-18T18:30:45.0185853Z 2017-09-18T18:30:45.0185853Z Capabilities : ()
2017-09-18T18:30:45.0185853Z
2017-09-18T18:30:45.0195854Z TestAgentVersion : (15.0)
2017-09-18T18:30:45.0195854Z
2017-09-18T18:30:45.0195854Z
****************************************************************
2017-09-18T18:30:45.0195854Z
2017-09-18T18:30:45.0195854Z Register the Agent with Id: 14
2017-09-18T18:30:45.0195854Z
2017-09-18T18:30:45.0195854Z Starting scheduled task on Windows 7.
2017-09-18T18:30:45.0195854Z
2017-09-18T18:30:45.0195854Z
2017-09-18T18:30:45.0205855Z RemoteDeployerSource Verbose: 2 : [RemoteDeployer]
[18:Sep:17:15:30:3:6202; 3168, 4] Created public key for communication
2017-09-18T18:30:45.0205855Z RemoteDeployerSource Information: 12 : [RemoteDeployer][18:Sep:17:15:30:3:6202; 3168, 4] Deployment service - VisualStudioRemoteDeployerc5e37723-02f4-42db-93b4-2eead65fe9cd is running...
2017-09-18T18:30:45.0205855Z RemoteDeployerSource Verbose: 4 : [RemoteDeployer][18:Sep:17:15:30:4:6489; 3168, 6] Input file found
2017-09-18T18:30:45.0215856Z RemoteDeployerSource Verbose: 5 : [RemoteDeployer][18:Sep:17:15:30:4:6489; 3168, 6] Reading input parameters
2017-09-18T18:30:45.0215856Z RemoteDeployerSource Verbose: 6 : [RemoteDeployer][18:Sep:17:15:30:4:6801; 3168, 6] Finished reading input parameters 2017-09-18T18:30:45.0215856Z
2017-09-18T18:30:45.0215856Z Task 'TestAgentConfiguration' on machine completed.
2017-09-18T18:30:45.0775912Z ##[section]Finishing: Visual Studio Test Agent Deployment
Notes: The tests I am attempting to run are NUnit tests, and I have installed the NUnit package and the NUnit 3 Test Adapter package to the project that is being built
As a workaround to this issue I have used the Batch Script task in VSTS to execute a batch script that executes NUnit Console (available here). The batch script to achieve this simply looks like:
"C:\Program Files (x86)\NUnit.org\nunit-console\nunit3-console.exe" {Path to your project}\YourProjectName.csproj
In order to track the results of testing in VSTS, I simply added the Publish Test Results task and pointed it to the TestResults.xml file generated by NUnit Console.
Although different than the Run Functional Tests task that uses a test agent, this method fulfills all of my testing needs (with fewer headaches).