Mobile Simulator & Test Orchestrator

Developing mobile applications traditionally requires running heavy simulators (Xcode iOS Simulator or Android Studio Emulator) consuming gigabytes of system memory.

Strata provides a dogfooded, lightweight native device simulator (strata_sim) and headless automated test orchestrator (strata_mobile_test) built directly in pure Rust.

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Dogfooded Native Simulator (strata_sim)

Launch the simulator using the Strata CLI:

strata sim --device "iphone-15-pro"

Simulator Capabilities

1. Accurate Hardware Bezels & Cutouts:
   • iPhone Dynamic Island and interactive camera notch cutouts.
   • Android punch-hole cameras and gesture navigation bars.
   • Real-time Safe Area Inset simulation (env(safe-area-inset-top)).
2. Multi-Touch & Gesture Synthesis:
   • Left-click drag simulates single finger touch pan and swipe gestures.
   • Alt + Mouse scroll simulates multi-finger pinch-to-zoom and rotational gestures.
   • Physics-based momentum scrolling matching iOS and Android scroll curves.
3. Hardware Sensor Injection:
   • Gyroscope & Accelerometer tilt simulation via mouse dragging.
   • Battery level and thermal state mocking via simulator command palette.
   • Network status toggles (WiFi, 5G, Offline flight mode).
4. Orientation Toggles: Instant seamless rotation between Portrait and Landscape modes (Cmd+R / Ctrl+R).

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Supported Device Profiles

Device Profile	Resolution	Scale Factor	Safe Area Top	Safe Area Bottom
iPhone 15 Pro	393 x 852 pt	3.0x	59 pt	34 pt
iPhone 15 Pro Max	430 x 932 pt	3.0x	59 pt	34 pt
Google Pixel 8 Pro	412 x 892 pt	2.6x	48 pt	24 pt
Samsung Galaxy S24	360 x 780 pt	3.0x	40 pt	20 pt
iPad Pro 11-inch	834 x 1194 pt	2.0x	24 pt	20 pt

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Automated Mobile Testing (strata_mobile_test)

strata_mobile_test provides a headless, programmable driver for executing end-to-end regression tests across mobile device form factors without requiring physical devices or emulators:

#[cfg(test)]
mod tests {
    use strata_mobile_test::prelude::*;

    #[test]
    fn test_mobile_navigation_flow() {
        let mut session = MobileTestSession::new(DeviceProfile::IPhone15Pro);
        session.load_app(MyApp);

        // Verify initial render within safe areas
        assert!(session.find_by_text("Cluster Telemetry").is_visible());

        // Simulate touch tap on tab button
        session.tap_element("#nav-workloads");

        // Verify state update and layout reflow
        assert_eq!(session.query_value("#active-tab-title"), "Workloads");

        // Capture deterministic golden screenshot for pixel regression verification
        session.assert_screenshot_matches("golden/mobile_workloads.png");
    }
}