Testing Findings, January 14 2022

[MathJud]

General

Due to a bug in the time calculation when sending RPC messages to the GUI, libqaul crashed (see logs below).
This crash was not transparent to the user, as the UI was still working. This led to confusion.

• Fix libqaul bug time calculation bug
  • libqaul crashed due to time.rs panic (duration became negative)
  • Polkadot had the same problem: tokio-runtime-worker panicked at 'supplied instant is later than self' paritytech/polkadot#4096
  • find safer way of using time calculations
  • Change time handling in libqaul to milli-seconds time stamps #295

Better Testing Feedback

• Monitor libqaul crashes and inform the user about it. #291
• Log libqaul within flutter and make it accessible for analyzation in futher tests.
  • e.g. library quick_log https://pub.dev/packages/quick_log
• Create the functionality to send the logs via email to the developers.
• Create the functionality to send device soft/hardware information via email to the developers.
• Log libqaul errors to file #297
• Create dummy message to check whether libqaul is still alive #298

UI Improvements

• Android: Make System back button working
• Mobile: Portrait view: Add gesture sliding functionality between the taps
• Feed View: make user icons clickable
• User Account View: show connectivity option in view
  • Display IP addresses via which the user is reachable
• Add Language Name to Translation Field #293
• Display round trip time milliseconds on network view correctly.

Further Development Suggestions

• Synchronize feed
• Make User Validation Interactive
  • Automatically exchange further more private information
  • Explain Idea behind it to the user
• Create anti-spam feature for feed messenger

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Logs

Libqaul Panic Log

flutter: sendRpc send 84 bytes
flutter: sendRpc success

thread '<unnamed>' panicked at 'overflow when subtracting durations', library/core/src/time.rs:940:31
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

flutter: sendRpc send 84 bytes
 ERROR libqaul::rpc                    > "SendError(..)"
flutter: sendRpc success