Make native-messaging-test-runner use desktop_proxy

[dani-garcia]

🎟️ Tracking

📔 Objective

While debugging some issues around the DDG integration I've changed the way the test runner connects to the IPC socket and made it use the desktop_proxy binary rather than a direct IPC connection. This matches better with what the browsers actually do, so I think this should be a better way to test compatibility.

Coincidentally, the test runner hasn't been working correctly since the IPC changes, as the IPC socket path has changed to be located in a sandboxed location rather than the user tmp dir. The use of desktop_proxy also fixes that, as it's using the correct directory.

I've only tested this lightly and for the purposes of debugging DDG, so it might need some extra testing.

Also, at the moment I've hardcoded the path to desktop_proxy to be inside /Applications/Bitwarden.app. This will make it work against AppStore and TestFlight builds, and DMG builds if the application is installed into the Applications folder.

I've also included a commented out option to use a local debug build of it. When testing against a prod application we want to use the prod desktop_proxy, while when testing against a debug build or npm run electron we want to use the debug build, as the IPC won't be in a sandboxed path in this case. I'm not sure how this test runner is used by others in practice, so we might want to let this path be configurable.

📸 Screenshots

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – 21927875-7dcd-4ff7-9b02-ee01854accc5

No New Or Fixed Issues Found

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 33.53%. Comparing base (853db23) to head (f8fd529).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #11923   +/-   ##
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  Coverage   33.53%   33.53%           
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  Files        2886     2886           
  Lines       90152    90152           
  Branches    17135    17135           
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  Hits        30235    30235           
  Misses      57527    57527           
  Partials     2390     2390           

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