I'm seeing odd behavior If i create an `HttpClient` from an `ApplicationTestBuilder()` in a test, or...

# ktor

[James Chen]

I'm seeing odd behavior If i create an HttpClient from an ApplicationTestBuilder() in a test, or create an HttpClient mockk, and inject that into my code path that uses a normal HttpClient (e.g. HttpClient(CIO) ) during a testApplication run. Odd side effects include authentication principals becoming null, and testcontainers not being recognized. For context I'm trying to do this to mock out some behaviors for testing. Does anyone know why this is?

[Aleksei Tirman [JB]]

Could you please share a code snippet to illustrate your issue?