tree e11980c3c07f176b501fa172ac4b446a0f23837c
parent 7630f1920e0fac7df97082e17d732b99569981a2
author srawlins <srawlins@google.com> 1595291753 -0400
committer Sam Rawlins <sam.rawlins@gmail.com> 1595880645 -0700

MockBuilder: Change default generated mocks to throw on missing stubs.

This also adds a mechanism to MockSpec (used in custom mocks) to revert to the
legacy behavior (returning null on missing stubs).

PiperOrigin-RevId: 322261918