tree 0539369642b1dffa83fbc8f224b0e576bdd10ae8
parent 2b095018bb17fddee27919fa310a33602a019873
author dmcardle <dmcardle@google.com> 1761341845 -0700
committer Copybara-Service <copybara-worker@google.com> 1761341905 -0700

Add fuzz tests for SNI normalization and validity properties in QuicheHostnameUtils

Primarily, this tests that NormalizeHostname() is idempotent for hostnames where IsValid() returns true. It also tests that normalizing a valid hostname produces another valid hostname.

If normalization is not idempotent, we'd have to think carefully about whether the server ever normalizes incoming SNIs twice.

If normalization does not preserve validity, we'd have to make sure the client checks validity after normalization. (Otherwise, a client could send what they believe is a valid SNI, only for the server to reject it post-normalization.)

PiperOrigin-RevId: 823669504