Updating linux pipeline (#2022)

changing to ubuntu-latest (18.04 for now)

reverting

moving to ubuntu-latest

Remove EmptyApp tests as its covered eslewhere (#2025)

* Remove EmptyApp tests as its covered eslewhere

* cleanup

Ingestion service data delivery status (#1887)

* Added eventhandler to transmission

* Updated public API

* Modified changelog.md

* Added more tests

* Fix API

* Added coverage for timeout

* Update to API

* Modified comment in transmission.

* PR Comments

* PR feedback

* Fix test

* Added TransmissionStatusEvent to InMemoryChannel.

* Remove Inmemory change

Co-authored-by: Cijo Thomas <cithomas@microsoft.com>
Co-authored-by: Timothy Mothra <tilee@microsoft.com>

update version of Microsoft.AspNetCore.Hosting to 2.1.0 (and fix major test bug) (#2026)

* Refactor tests and fix several issues in one go

* remove unwanted changes

* update changelog

Co-authored-by: Timothy Mothra Lee <tilee@microsoft.com>

changing to posix

updating orderby

removing unused usings and space

updating trx folder path

udoing

BASE/.vsts/linux-build.yml

@@ -1,47 +1,50 @@
 pool:
-  vmImage: 'ubuntu-16.04'
-steps:
+  vmImage: 'ubuntu-latest'
+
+strategy:
+    matrix:
+        netcoreapp2_1:
+            framework: netcoreapp2.1
+        netcoreapp3_1:
+            framework: netcoreapp3.1
+    maxParallel: 2
 
-## Install NetCore 3.1, Restore Solution, Build Solution, Test NetCore 3.1
+steps:
 
-- task: DotNetCoreInstaller@1
+- task: UseDotNet@2
+  displayName: install dotnet core 2.1
+  inputs:
+    version: 2.1.807
+
+- task: UseDotNet@2
   displayName: install dotnet core 3.1
   inputs:
-    version: 3.1.x
+    version: 3.1.301
+
+- task: CmdLine@2
+  displayName: Run dotnet side by side.
+  inputs:
+    script: rsync -a ${DOTNET_ROOT/3.1.301/2.1.807}/* $DOTNET_ROOT/
 
-- task: DotNetCoreCLI@1
+- task: DotNetCoreCLI@2
   displayName: DotNetCoreCLI - Restore Solution
   inputs:
     command: "restore"
     projects: "BASE/*.sln"
 
-- task: DotNetCoreCLI@1
+- task: DotNetCoreCLI@2
   displayName: DotNetCoreCLI - Build Solution
   inputs:
     command: "build"
     projects: "BASE/*.sln"
-    arguments: "--configuration Release"
-
-- task: DotNetCoreCLI@1
-  displayName: DotNetCoreCLI - Test NetCore 3.1
-  inputs:
-    command: "test"
-    projects: "BASE/Test/**/Microsoft.ApplicationInsights.Tests.csproj"
-    arguments: "--configuration Release --framework netcoreapp3.1 -l trx --filter TestCategory!=WindowsOnly"
-
-## Install and Test NetCore 2.2
-
-- task: DotNetCoreInstaller@1
-  displayName: install dotnet core 2.2
-  inputs:
-    version: 2.2.x
+    arguments: "--configuration Release --no-restore"
 
-- task: DotNetCoreCLI@1
-  displayName: DotNetCoreCLI - Test NetCore 2.1
+- task: DotNetCoreCLI@2
+  displayName: DotNetCoreCLI - Test $(framework)
   inputs:
     command: "test"
     projects: "BASE/Test/**/Microsoft.ApplicationInsights.Tests.csproj"
-    arguments: "--configuration Release --framework netcoreapp2.1 -l trx --filter TestCategory!=WindowsOnly"
+    arguments: "--configuration Release --framework $(framework) --no-build -l trx --filter TestCategory!=WindowsOnly"
 
 ## Publish Test results
 
@@ -52,7 +55,7 @@ steps:
     testResultsFiles: "**/*.trx"
     failTaskOnFailedTests: true
 
-#- task: DotNetCoreCLI@1
+#- task: DotNetCoreCLI@2
 #  inputs:
 #    command: "publish"
 #    publishWebProjects: "True"