Add a complete example for WebApplicationFactoryContentRootAttribute

[paulomorgado]

Description

WebApplicationFactoryContentRootAttribute is not commonly used (or even known).

It's missing more documentation and examples other than the XML comments from C#.

Page URL

https://learn.microsoft.com/en-us/aspnet/core/test/integration-tests?view=aspnetcore-9.0#how-the-test-infrastructure-infers-the-app-content-root-path

Content source URL

https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/test/integration-tests.md

Document ID

f499b131-8b14-7e10-1728-543fdd5a5656

Platform Id

a725fe2a-b11f-6664-eb77-2adc94d55792

Article author

@tdykstra

Metadata

• ID: 77889d43-fedb-f8b4-8fea-379ec946555c
• PlatformId: a725fe2a-b11f-6664-eb77-2adc94d55792
• Service: aspnet-core
• Sub-service: testing

Related Issues

[wadepickett]

Assinged at triage. cc: @tdykstra