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406b7516b3
* perf(ios): use prebuilt XCTest runner to cut startup * chore(ioscompanion): add companion asset prepare script * feat(ioscompanion): embed and extract simulator companion bundle * test(ioscompanion): cover companion stub and embedded extraction * docs: add third party notices for vendored companion * chore: ignore vendored companion bundle artifact * build(proto): pin simulator companion proto v1.1.8 * build(proto): add dedicated buf module and gen template for pinned proto * build(proto): exclude pinned companion proto from root buf workspace * feat(ioscompanion): commit generated companion gRPC stubs * feat(ioscompanion): map flat companion describe dump to TreeNode JSON * test(ioscompanion): add hierarchy-map golden and unit tests * feat(ioscompanion): port screen-settle stability polling to Go * test(ioscompanion): cover settle transitional, hash, streak, and cap rules * feat(ioscompanion): add USB HID keymap module * test(ioscompanion): cover keymap branches and paste-chord constants * build: embed companion assets via withcompanion tag * feat(ioscompanion): add transport companion interface * feat(ioscompanion): add HID event wrapper and builders * feat(ioscompanion): wire gRPC companion client and Dial * test(ioscompanion): cover HID builders and unit conversions * test(ioscompanion): cover Dial, process-state mapping, and install archive * test(ioscompanion): add gated simulator integration smoke test * feat(ioscompanion): text input and gesture HID composition with pasteboard fallback * test(ioscompanion): cover input composers, paste dialog loop, and pure helpers * feat(ioscompanion): add Describe to companion transport * feat(ioscompanion): implement DeviceDriver with companion supervision * test(ioscompanion): unit tests with fake companion transport * test(ioscompanion): gated companion smoke test * feat(ios): add ResolveTarget for simulator vs physical-device routing * feat(testrun): route iOS simulators through the native companion driver * refactor(testrun): defer the java preflight check to the physical-device path * feat(cli): add --ios-app-path flag * feat(doctor): split iOS checks into simulator and physical-device paths * test(folio): add gate-analyzer fixtures for G1-G5 * feat(folio): add iOS conformance gate script * chore(folio): wire gates recipe, app path, and ignore gate output * style: gofmt struct alignment drift * fix(doctor): probe simctl via xcrun instead of PATH lookup * fix(ioscompanion): spawn companion under driver-lifetime context * test(ioscompanion): prove companion child outlives startup context * fix(ioscompanion): chunk install payload under companion message cap * test(ioscompanion): cover install payload chunking * fix(ioscompanion): reinstall via simctl and sanitize companion env * fix(ioscompanion): wait out unresolved accessibility values after launch * perf(ioscompanion): paste long text for atomic landing * test(ioscompanion): cover paste threshold, retry flow, and sentinel detection * fix(ioscompanion): treat unresolved bridge values as transitional, never as content * fix(ioscompanion): accept masked secure-field values as paste landing * test(ioscompanion): cover sentinel mapping and masked-field landing * fix(ioscompanion): atomic erase and single-send paste to prevent doubling * test(ioscompanion): cover atomic erase, single chord, unverifiable field * fix(ioscompanion): verify paste on a time budget that outlasts the bridge blackout * test(ioscompanion): cover bridge-blackout paste verification * fix(ioscompanion): drop unresolved-value settle gate that never let empty-field screens settle * refactor(ioscompanion): name the empty-editable-field sentinel for what it is * perf(ioscompanion): tighten settle streak for the fast companion transport * feat(ioscompanion): pre-grant pasteboard access so unicode input skips the OS prompt * refactor(ioscompanion): drop paste warm-up now that the grant suppresses the prompt * test(ioscompanion): cover pasteboard grant on launch, drop warm-up tests * fix(ioscompanion): retry describe past transient collapsed accessibility dumps * test(ioscompanion): cover collapsed-dump detection * perf(ioscompanion): split raw and retrying describe so settle does not double-wait collapses * perf(ioscompanion): tighten settle now that collapses are handled separately * fix(ioscompanion): replace field content on input so blackout-skipped erase cannot accumulate text * test(ioscompanion): cover replace-on-input and TextReplacer capability * refactor(ioscompanion): neutralize HID events behind the transport seam * feat(companion): add simulator runner project skeleton * feat(companion): serve accessibility snapshots over the wire protocol * feat(companion): synthesize timestamped touch gestures * feat(companion): type text with replace semantics * feat(companion): serve the wire protocol from a parked runner * feat(ioscompanion): add TextEditor capability and unavailable sentinel to the transport seam * feat(ioscompanion): route text input through a text-editing companion when available * fix(companion): bind listener by port and source screen size from snapshot * feat(ioscompanion): add runner companion JSON transport * test(ioscompanion): cover runner transport protocol mapping * fix(companion): synthesize gestures synchronously to avoid the async completion crash * fix(companion): type on the main thread and recover from focus assertions * fix(companion): keep serving after an automation failure * refactor(companion): tidy snapshot serialization * fix(companion): honor sequential tap gaps and survive synthesis exceptions * feat(ioscompanion): expose native typing with an explicit replace flag * chore(companion): add runner asset prepare script * feat(ioscompanion): embed and extract the runner test bundle * test(ioscompanion): cover runner asset extraction * build(ioscompanion): commit runner asset archive * feat(ioscompanion): pair the legacy companion with the in-simulator runner * test(ioscompanion): cover hybrid routing, paste-grant skip, and port binding * fix(ioscompanion): reconnect after interrupted runner calls instead of restarting * fix(ioscompanion): route hybrid lifecycle through the runner and harden restarts * feat(companion): launch and terminate apps through the automation session * build(ioscompanion): refresh runner asset with session lifecycle * fix(ioscompanion): classify connection deadline expiry as caller budget * fix(companion): capture snapshots on the main thread inside the catch bridge * build(ioscompanion): refresh runner asset with main-thread snapshots * perf(ioscompanion): count read spans toward settle and capture snapshots concurrently * feat(ioscompanion): make the hybrid simulator companion the default * test(folio): cover runner-session orphans in the gate harness * test(ioscompanion): pin the child-lifetime test to the legacy path * fix(ioscompanion): keep mappable text on one HID stream and verify unicode clears * fix(ioscompanion): pause the clear chord so selection applies before the delete * fix(companion): prune the keyboard subtree from snapshots * build(ioscompanion): refresh runner asset without keyboard elements * fix(ioscompanion): capture the screenshot transport before a recovery can reassign it * fix(companion): pin the runner listener to loopback * fix(companion): size the replace delete prefix to cover any focused field * build(ioscompanion): refresh runner asset with loopback bind and replace fix * fix(cli): cancel the run context on SIGINT so spawned children are reaped * fix(testrun): point the device java preflight hint at the ios-device doctor * fix(folio): word-bound the G2 ERROR scan and drop the dead objc allowlist glob * test(ioscompanion): cover stopProcess, restart, and failed bring-up supervision * chore: add test-companion target for the withcompanion-tagged suite * chore(ioscompanion): stop tracking the runner archive build artifact * build: produce the runner archive from source like the companion bundle * refactor(conformance): move the gate harness out of examples/folio * chore(folio): drop the gate harness wiring from the example app
Folio
A minimal Kotlin Multiplatform personal-ledger app: login with demo credentials, create accounts, add credits and debits. Shared UI across Android, iOS, and web (wasmJs via Compose for Web). Doubles as the example sanderling runs its property-based specs against.
Stack
- Kotlin Multiplatform + Compose Multiplatform (shared UI)
- SQLDelight for the data layer (unified across platforms)
- kotlinx.coroutines for state flows
- kotlinx.serialization for
@Serializableroute types
Prerequisites
just- JDK 17
- Android SDK (auto-discovered under
$ANDROID_HOME,~/Library/Android/sdk, or the Homebrew cask) - Xcode 16+ and
xcodegen(brew install xcodegen) for iOS
Android
just install # build + install on a booted emulator / device
just uninstall
just clean
iOS
just ios # default device: iPhone 17 Pro
IOS_DEVICE="iPhone 15" just ios # pick a different simulator
just ios regenerates app/iosApp/iosApp.xcodeproj from app/iosApp/project.yml,
builds the KMP framework (Shared.framework from :app:shared), links it
into the SwiftUI host, installs, and launches.
Web
just web # webpack dev server with COOP/COEP headers
just web-build # produce a webpack distributable bundle
just web runs :app:webApp:wasmJsBrowserDevelopmentRun --continuous, so
edits to shared code reload in the browser.
Demo credentials
email: [email protected]
password: ledger123
Run a sanderling test (Android)
just test
If no device is connected, sanderling boots the single AVD it finds. With multiple AVDs, pick one:
AVD=Pixel_7 just test
Persistent settings can live in .env alongside the justfile:
AVD=Pixel_7
DURATION=5m
Traces land in ./sanderling/runs/<timestamp>/.
Run a sanderling test (iOS)
just test-ios # default simulator: iPhone 17 Pro
IOS_DEVICE="iPhone 15" just test-ios # pick a different simulator
just test-ios boots the simulator if needed, runs just ios to install
and launch the app, then invokes sanderling test --platform ios. Same
DURATION, SEED, and OUTPUT env vars as the Android target.
How it connects to sanderling
- Each screen sets a stable Compose
testTag(HomeScreen,AccountCard,LedgerRow,TxnAmount, ...). The Sanderling SDK resolvestestTagtoresource-idon Android andaccessibilityIdentifieron iOS. - Identity for list items is the visible text content (account name; txn note + amount). No synthetic IDs encoded in semantics.
contentDescriptionis reserved for real accessibility labels, never as a data carrier.sanderling/spec.tsimports@sanderling/spec, reads state vias.ax.*, asserts properties, and weights the actions the fuzzer picks from.just testinvokessanderling testagainst the installed APK.