The Authentication and SDAM specifications require authentication failure errors to provoke a standardized response: the connection pool is cleared, server status changed to unknown, and corresponding events emitted. The C driver does not yet have these standard features. Additionally, authentication failures do not even reliably cause command failures. If authentication fails as part of a speculative auth reply, the failure will be fully ignored and transparently retried.

Necessitates unified test skips:
 
   {"auth-error", "Reset server and pool after AuthenticationFailure error"},
   {"auth-network-error", "Reset server and pool after network error during authentication"},
   {"auth-misc-command-error", "Reset server and pool after misc command error"},
   {"auth-shutdown-error", "Reset server and pool after shutdown error during authentication"},

In addition to the explicit skips, many tests attempt to cover this feature unsuccessfully by checking for poolClearedEvent, unsupported due to CMAP being out-of-scope. These tests are rendered ineffective until the necessary event handlers are implemented.