Team Foundation Services not running Unit Tests before publish to Azure - visual-studio-2012

Question

I'm using Team Foundations Services and Windows Azure. My solution has a MsUnitTest project with all of my unit tests. What I'm trying to do: When checked in my source codes and before publish to azure, I would like the TFS to run my unit tests.
I've broken a unit to test, to check if it will publish or perform a rollback and unfortunately it's publishing.
In my Build Definition / Process, I use the default "**\*test*.dll" value for Test Sources Spec, and I also tried the full path "$/root-folder/mstestproject/nameofassembly.dll" and neither worked.
Ps: the path above ("$/root-folder/mstestproject/nameofassembly.dll") it's just a sample.
What I did wrong?
full test project Assembly name: "Ipe.Tests.dll"
build definition:
<Activity mc:Ignorable="sad" x:Class="TfsBuild.Process" xmlns="http://schemas.microsoft.com/netfx/2009/xaml/activities" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:mt="clr-namespace:Microsoft.TeamFoundation;assembly=Microsoft.TeamFoundation.Common" xmlns:mtb="clr-namespace:Microsoft.TeamFoundation.Build.Common;assembly=Microsoft.TeamFoundation.Build.Common" xmlns:mtbc="clr-namespace:Microsoft.TeamFoundation.Build.Client;assembly=Microsoft.TeamFoundation.Build.Client" xmlns:mtbw="clr-namespace:Microsoft.TeamFoundation.Build.Workflow;assembly=Microsoft.TeamFoundation.Build.Workflow" xmlns:mtdwa="clr-namespace:Microsoft.TeamFoundation.Deployment.Workflow.Activities;assembly=Microsoft.TeamFoundation.Deployment.Workflow" xmlns:mtdw="clr-namespace:Microsoft.TeamFoundation.Deployment.Workflow;assembly=Microsoft.TeamFoundation.Deployment.Workflow" xmlns:mtbwa="clr-namespace:Microsoft.TeamFoundation.Build.Workflow.Activities;assembly=Microsoft.TeamFoundation.Build.Workflow" xmlns:mtbwt="clr-namespace:Microsoft.TeamFoundation.Build.Workflow.Tracking;assembly=Microsoft.TeamFoundation.Build.Workflow" xmlns:mttbb="clr-namespace:Microsoft.TeamFoundation.TestImpact.BuildIntegration.BuildActivities;assembly=Microsoft.TeamFoundation.TestImpact.BuildIntegration" xmlns:mtvc="clr-namespace:Microsoft.TeamFoundation.VersionControl.Client;assembly=Microsoft.TeamFoundation.VersionControl.Client" xmlns:mtvco="clr-namespace:Microsoft.TeamFoundation.VersionControl.Common;assembly=Microsoft.TeamFoundation.VersionControl.Common" xmlns:mva="clr-namespace:Microsoft.VisualBasic.Activities;assembly=System.Activities" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:sad="http://schemas.microsoft.com/netfx/2009/xaml/activities/presentation" xmlns:sad1="clr-namespace:System.Activities.Debugger;assembly=System.Activities" xmlns:scg="clr-namespace:System.Collections.Generic;assembly=mscorlib" xmlns:sl="clr-namespace:System.Linq;assembly=System.Core" xmlns:this="clr-namespace:TfsBuild;" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<x:Members>
<x:Property Name="SolutionToBuild" Type="InArgument(x:String)" />
<x:Property Name="ConfigurationsToBuild" Type="InArgument(mtbwa:PlatformConfigurationList)" />
<x:Property Name="TestSpecs" Type="InArgument(mtbwa:TestSpecList)" />
<x:Property Name="BuildNumberFormat" Type="InArgument(x:String)" />
<x:Property Name="CleanWorkspace" Type="InArgument(mtbwa:CleanWorkspaceOption)" />
<x:Property Name="RunCodeAnalysis" Type="InArgument(mtbwa:CodeAnalysisOption)" />
<x:Property Name="SourceAndSymbolServerSettings" Type="InArgument(mtbwa:SourceAndSymbolServerSettings)" />
<x:Property Name="AgentSettings" Type="InArgument(mtbwa:AgentSettings)" />
<x:Property Name="AssociateChangesetsAndWorkItems" Type="InArgument(x:Boolean)" />
<x:Property Name="CreateWorkItem" Type="InArgument(x:Boolean)" />
<x:Property Name="MSBuildArguments" Type="InArgument(x:String)" />
<x:Property Name="MSBuildPlatform" Type="InArgument(mtbwa:ToolPlatform)" />
<x:Property Name="MSBuildMultiProc" Type="InArgument(x:Boolean)" />
<x:Property Name="PerformTestImpactAnalysis" Type="InArgument(x:Boolean)" />
<x:Property Name="CreateLabel" Type="InArgument(x:Boolean)" />
<x:Property Name="DisableTests" Type="InArgument(x:Boolean)" />
<x:Property Name="GetVersion" Type="InArgument(x:String)" />
<x:Property Name="PrivateDropLocation" Type="InArgument(x:String)" />
<x:Property Name="Verbosity" Type="InArgument(mtbw:BuildVerbosity)" />
<x:Property Name="Metadata" Type="mtbw:ProcessParameterMetadataCollection" />
<x:Property Name="SupportedReasons" Type="mtbc:BuildReason" />
<x:Property Name="DeploymentEnvironmentName" Type="InArgument(x:String)" />
<x:Property Name="AllowUntrustedCertificates" Type="InArgument(x:Boolean)" />
<!-- Additional Cloud Service Overrides -->
<x:Property Name="AlternatePublishProfile" Type="InArgument(x:String)" />
<x:Property Name="AlternateHostedServiceName" Type="InArgument(x:String)" />
<x:Property Name="AllowUpgrade" Type="InArgument(x:Boolean)" />
<!-- NOTE: this deliberately a String instead of Enum type so it can easily be set by server code. -->
<x:Property Name="AlternateDeploymentSlot" Type="InArgument(x:String)" />
<x:Property Name="AlternateStorageAccountName" Type="InArgument(x:String)" />
<x:Property Name="AlternateDeploymentLabel" Type="InArgument(x:String)" />
<x:Property Name="AlternateServiceConfiguration" Type="InArgument(x:String)" />
<!-- Additional Web Deploy Overrides -->
<x:Property Name="AlternateWebDeployPublishProfile" Type="InArgument(x:String)" />
</x:Members>
<this:Process.SolutionToBuild>
<InArgument x:TypeArguments="x:String" />
</this:Process.SolutionToBuild>
<this:Process.ConfigurationsToBuild>[New Microsoft.TeamFoundation.Build.Workflow.Activities.PlatformConfigurationList()]</this:Process.ConfigurationsToBuild>
<this:Process.DisableTests>[False]</this:Process.DisableTests>
<this:Process.TestSpecs>[New Microsoft.TeamFoundation.Build.Workflow.Activities.TestSpecList(New Microsoft.TeamFoundation.Build.Workflow.Activities.AgileTestPlatformSpec("**\*test*.dll") With { .FailBuildOnFailure = True } )]</this:Process.TestSpecs>
<this:Process.BuildNumberFormat>["$(BuildDefinitionName)_$(Date:yyyyMMdd)$(Rev:.r)"]</this:Process.BuildNumberFormat>
<this:Process.AssociateChangesetsAndWorkItems>[True]</this:Process.AssociateChangesetsAndWorkItems>
<this:Process.CreateWorkItem>[True]</this:Process.CreateWorkItem>
<this:Process.CleanWorkspace>[Microsoft.TeamFoundation.Build.Workflow.Activities.CleanWorkspaceOption.All]</this:Process.CleanWorkspace>
<this:Process.MSBuildArguments>
<InArgument x:TypeArguments="x:String" />
</this:Process.MSBuildArguments>
<this:Process.RunCodeAnalysis>[Microsoft.TeamFoundation.Build.Workflow.Activities.CodeAnalysisOption.AsConfigured]</this:Process.RunCodeAnalysis>
<this:Process.MSBuildMultiProc>[True]</this:Process.MSBuildMultiProc>
<this:Process.MSBuildPlatform>[Microsoft.TeamFoundation.Build.Workflow.Activities.ToolPlatform.Auto]</this:Process.MSBuildPlatform>
<this:Process.PerformTestImpactAnalysis>[True]</this:Process.PerformTestImpactAnalysis>
<this:Process.SourceAndSymbolServerSettings>[New Microsoft.TeamFoundation.Build.Workflow.Activities.SourceAndSymbolServerSettings(True, Nothing)]</this:Process.SourceAndSymbolServerSettings>
<this:Process.CreateLabel>[True]</this:Process.CreateLabel>
<this:Process.GetVersion>
<InArgument x:TypeArguments="x:String" />
</this:Process.GetVersion>
<this:Process.AgentSettings>[New Microsoft.TeamFoundation.Build.Workflow.Activities.AgentSettings() With {.MaxWaitTime = New System.TimeSpan(4, 0, 0), .MaxExecutionTime = New System.TimeSpan(0, 0, 0), .TagComparison = Microsoft.TeamFoundation.Build.Workflow.Activities.TagComparison.MatchExactly }]</this:Process.AgentSettings>
<this:Process.Verbosity>[Microsoft.TeamFoundation.Build.Workflow.BuildVerbosity.Normal]</this:Process.Verbosity>
<this:Process.AllowUntrustedCertificates>[True]</this:Process.AllowUntrustedCertificates>
<this:Process.AllowUpgrade>[True]</this:Process.AllowUpgrade>