Cpp

A Qt desktop app filtered log lines with msgType < minimumType. Qt numbers its message types in the order they were added, not by severity, so at the default INFO level the log was full of info lines and held no warning or error at all.

A Qt/SQLite history table encrypts its path columns and matches rows by re-encrypting the paths. The update had three independent faults, each one hiding the next. A store-update-load test found them, and a negative test kept the fix from dropping the match rule.

A C++ factory picked one of many Style subclasses through a growing if/else chain. The subclasses only returned fixed properties, so one JSON resource per configuration replaced the whole hierarchy.