Test Coverage

[TimothyMothra]

Using this issue to track progress.
Will likely take a few weeks to expand test coverage and fix issues as they are discovered.

• Test.props contains the target frameworks for our test matrix
  

  ApplicationInsights-dotnet/.props/Test.props

  Lines 11 to 25 in c8ea53d

  	<PropertyGroup>
  	<!-- Our test matrix includes every currently supported version of .NET
  	- net4.5.2 (EoL April 2022)
  	- net4.6.0 (EoL April 2022)
  	- net4.6.1 (EoL April 2022)
  	- net4.6.2
  	- net4.7.2
  	- net4.8.0
  	- netcoreapp3.1 (EoL Dec 2022)
  	- net5.0 (EoL Feb 2022)
  	- net6.0 (GA Nov 2021)
  	-->
  	<TargetFrameworks>net462;net472;net480;netcoreapp3.1;net5.0</TargetFrameworks>
  	<TargetFrameworks Condition="$(OS) != 'Windows_NT'">netcoreapp3.1;net5.0</TargetFrameworks>
  	</PropertyGroup>

• Will immediaetly focus on net462;net472;net480;netcoreapp3.1;net5.0

• any project on an older framework will stay on those frameworks, but no other project will be onboarded to a framework older than 462

Frameworks

	Product					Test
	net452	net460	net461	netstandard2.0		net452	net46	net461	net462	net472	net480	netcoreapp3.1	net5.0	net6.0
Base SDKs
- Microsoft.ApplicationInsights	x	x		x		x	x	x	x	x	x	x	x
- Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel	x			x		x			x	x	x	x	x
Auto Collectors (Generic)
- Microsoft.ApplicationInsights.DependencyCollector	x			x		x			x	x	x	x	x
- Microsoft.ApplicationInsights.EventCounterCollector				x					x	x	x	x	x
- Microsoft.ApplicationInsights.PerfCounterCollector	x			x		x			x	x	x	x	x
- Microsoft.ApplicationInsights.WindowsServer	x			x		x			x	x	x	x	x
Auto Collectors (ASP.NET)
- Microsoft.ApplicationInsights.Web	x					x			x	x	x	-	-	-
Auto Collectors (ASP.NET Core)
- Microsoft.ApplicationInsights.AspNetCore			x	x					x	x	x	x	x
Auto Collectors (WorkerService, Console Application, etc.)
- Microsoft.ApplicationInsights.WorkerService				x					x	x	x	x	x
Logging Adapters
- For ILogger: Microsoft.Extensions.Logging.ApplicationInsights				x					x	x	x	x	x
- For NLog: Microsoft.ApplicationInsights.NLogTarget	x			x		x						x
- For Log4Net: Microsoft.ApplicationInsights.Log4NetAppender	x			x		x						x
- For System.Diagnostics: Microsoft.ApplicationInsights.TraceListener	x			x		x						x
- Microsoft.ApplicationInsights.DiagnosticSourceListener	x			x								x
- Microsoft.ApplicationInsights.EtwCollector	x						x
- Microsoft.ApplicationInsights.EventSourceListener				x								x