Files
firezone/rust
Gabi adc0bb73f7 test(client): add reconnection tests from a client using a headless browser (#4569)
Considered using Elixir and Rust to write the tests.

For Elixir, `wallaby` doesn't seem to have a way to attach to an
existing `chromium` instance, launching it each time, which makes it
hard to coordinate with the relay restart.

For Rust we considered `thirtyfour` which would be very nice since we
could test both firefox and chrome but each time it connects to the
instance it launches a new session making it hard to test the DNS cache
behavior.

We also considered `chrome_headless` for Rust it needs a small patch to
prevent it from closing the browser after `Drop` but it still presents a
problem, since it has no easy way to retrieve if loading a page has
succeeded. There are some workarounds such as retrieving the title that
we could have used but after some testing they are quite finnicky and we
don't want that for CI.

So I ended up settling for TypeScript but I'm open to other options, or
a fix for the previous ones!

There are some modifications still incoming for this PR, around the test
name and that sleep in the middle of the test doesn't look good so I
will probably add some retries, but the gist is here, will keep it in
draft until we expect it to be passing.

So feel free to do some initial reviews.

Note: the number of lines changed is greatly exaggerated by
`package.lock`

---------

Signed-off-by: Thomas Eizinger <thomas@eizinger.io>
Co-authored-by: Jamil Bou Kheir <jamilbk@users.noreply.github.com>
Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
2024-04-20 06:57:07 +00:00
..
2023-05-10 07:58:32 -07:00

Rust development guide

Firezone uses Rust for all data plane components. This directory contains the Linux and Windows clients, and low-level networking implementations related to STUN/TURN.

We target the last stable release of Rust using rust-toolchain.toml. If you are using rustup, that is automatically handled for you. Otherwise, ensure you have the latest stable version of Rust installed.

Reading Client logs

The Client logs are written as JSONL for machine-readability.

To make them more human-friendly, pipe them through jq like this:

cd path/to/logs  # e.g. `$HOME/.cache/dev.firezone.client/data/logs` on Linux
cat *.log | jq -r '"\(.time) \(.severity) \(.message)"'

Resulting in, e.g.

2024-04-01T18:25:47.237661392Z INFO started log
2024-04-01T18:25:47.238193266Z INFO GIT_VERSION = 1.0.0-pre.11-35-gcc0d43531
2024-04-01T18:25:48.295243016Z INFO No token / actor_name on disk, starting in signed-out state
2024-04-01T18:25:48.295360641Z INFO null