--- id: vasilyu1983/AI-Agents-public/qa-testing-android version: "6e521213" license: MIT install: manual updated: 2026-07-13 --- # qa-testing-android — This skill guides you through establishing robust UI testing infrastructure for Android applications. It covers framework selection and configuration for Espresso, Compose Testing, and UIAutomator, enabling you to build automated test suites that validate your app's user interface reliably. Publisher: vasilyu1983 · Stars: 69 · Updated: 2026-07-13 Install (manual): `git clone https://github.com/vasilyu1983/AI-Agents-public` ## SKILL.md # QA Testing (Android) Android testing automation with Espresso, UIAutomator, and Compose Testing. **Core References**: [Android Testing Docs](https://developer.android.com/training/testing), [Espresso](https://developer.android.com/training/testing/espresso), [Compose Testing](https://developer.android.com/develop/ui/compose/testing) ## Quick Reference | Task | Command | |------|---------| | List emulators | `emulator -list-avds` | | Start emulator | `emulator @` | | List devices | `adb devices` | | Install APK | `adb install -r ` | | Run unit tests | `./gradlew test` | | Run instrumented tests (connected) | `./gradlew connectedAndroidTest` | | Run instrumented tests (GMD) | `./gradlew AndroidTest` | | List GMD tasks | `./gradlew tasks --all | rg -n \"AndroidTest|managedDevice|ManagedDevices\"` | | Clear app data | `adb shell pm clear ` | ## Quick Start (2026 Defaults) - Prefer Gradle Managed Devices (GMD) + ATD images for CI; use `connectedAndroidTest` for local ad-hoc runs. - Enable test isolation via AndroidX Test Orchestrator for instrumented tests. - Disable animations via Gradle `testOptions` (preferred) instead of per-runner ADB steps. - Keep selectors stable: `withId()` (Views), `testTag` (Compose), resource-id/content-desc (UIAutomator). Recommended Gradle defaults for stable instrumented tests (version catalog names vary by project): ```kotlin android { testOptions { animationsDisabled = true execution = "ANDROIDX_TEST_ORCHESTRATOR" } } dependencies { androidTestUtil(libs.androidx.test.orchestrator) } ``` ## When to Use - Debug or stabilize flaky Android UI tests - Add Espresso tests for View-based UIs - Add Compose UI tests for composables - Add UIAutomator tests for system UI or cross-app flows - Set up an Android test gate in CI ## Inputs to Gather - UI stack: Views, Compose, or mixed - Test layer: unit, Robolectric, instrumented UI, UIAutomator/system - CI target: PR gate vs nightly vs release; emulator vs device farm - Device matrix: min/target API, form factors, locales (if relevant) - Flake symptoms: timeouts, missing nodes, idling/sync, device-only issues - App seams: DI hooks for fakes, feature flags, test accounts/test data ## Testing Layers | Layer | Framework | Scope | |-------|-----------|-------| | Unit | JUnit + Mockito | JVM, no Android | | Unit (Android) | Robolectric | JVM, simulated | | UI (Views) | Espresso | Instrumented | | UI (Compose) | Compose Testing | Instrumented | | System | UIAutomator | Cross-app | ## Core Principles (Stability) ### Device Matrix - Default: emulators for PR gates; real devices for release - Cover: min supported API level, target API level, plus tablet/foldable if supported ### Flake Control - Prefer Gradle `testOptions { animationsDisabled = true }` for instrumented tests - Use AndroidX Test Orchestrator to isolate state and recover from crashes - Use IdlingResources / Compose idling + `waitUntil` instead of sleeps - Mock network with `MockWebServer` (or your DI fake) and avoid live backends - Reset app state per test (test account/data, storage, feature flags) ## Writing Tests - Espresso (Views): open `references/espresso-patterns.md` - Compose: open `references/compose-testing.md` - UIAutomator (system/cross-app): open `references/uiautomator.md` ## Workflows ### Add a New UI Test (Instrumented) - Pick framework: Espresso (Views) vs Compose Testing vs UIAutomator boundary. - Add stable selectors: View `id`, Compose `Modifier.testTag`, system `resource-id`/`content-desc`. - Control externals: fake/mock network + deterministic test data. - Add waits: IdlingResources / Compose idling + `waitUntil` (avoid sleeps). - Run locally: `./gradlew connectedAndroidTest` (or a single test via runner args). ### Diagnose a Flaky Instrumented Test - Confirm reproduces: run the test 10x; isolate to one device/API if needed. - Remove nondeterminism: network, clock/timezone, locale, feature flags, animations. - Replace sleeps with idling/explicit waits; validate your IdlingResource actually idles. - Capture artifacts: logcat + screenshot + screen recording for failures. - If still flaky, isolate app state (orchestrator + clear data) and bisect the interaction steps. ### Add a CI Gate (Preferred: GMD) - Configure GMD + ATD images (see `references/gradle-managed-devices.md`). - Run PR gate on a small matrix; expand via groups for nightly/release. - Ensure artifacts upload on failure: `**/build/reports/androidTests/`, screenshots/logcat. ## ADB Commands (Triage) ```bash # Screenshot adb exec-out screencap -p > screenshot.png # Screen recording adb shell screenrecord /sdcard/demo.mp4 ``` ## CI Integration Preferred: Gradle Managed Devices (GMD). See `references/gradle-managed-devices.md`. ```yaml # .github/workflows/android.yml name: Android CI on: [push, pull_request] jobs: test: runs-on: ubuntu-latest steps: - uses: actions/checkout@v4 - uses: actions/setup-java@v4 with: java-version: '17' distribution: 'temurin' - uses: gradle/actions/setup-gradle@v3 - run: ./gradlew test pixel6api34DebugAndroidTest ``` ## Navigating References The reference guides are intentionally large; search within them instead of loading everything: - `rg -n \"^## \" frameworks/shared-skills/skills/qa-testing-android/references/compose-testing.md` - `rg -n \"Idling|waitUntil|Synchronization\" frameworks/shared-skills/skills/qa-testing-android/references/compose-testing.md` - `rg -n \"RecyclerView|Intents\" frameworks/shared-skills/skills/qa-testing-android/references/espresso-patterns.md` ## Do / Avoid ### Do - Prefer orchestrator + per-test isolation for instrumented tests - Use IdlingResources / `waitUntil` for async waits - Use Robot/Page Object patterns for readability and reuse - Run a small device matrix on PRs; expand on nightly/release ### Avoid - `Thread.sleep()` for synchronization - Tests depending on live network/backends - Flaky selectors (localized text, position-only selectors) ## Resources | Resource | Purpose | |----------|---------| | [references/espresso-patterns.md](references/espresso-patterns.md) | Espresso matchers, actions | | [references/compose-testing.md](references/compose-testing.md) | Compose testing guide | | [references/uiautomator.md](references/uiautomator.md) | UIAutomator patterns (system UI) | | [references/gradle-managed-devices.md](references/gradle-managed-devices.md) | Managed Devices for CI | | [references/screenshot-testing.md](references/screenshot-testing.md) | Visual regression for Android | | [references/test-orchestrator-patterns.md](references/test-orchestrator-patterns.md) | AndroidX Test Orchestrator patterns | | [references/android-ci-optimization.md](references/android-ci-optimization.md) | CI pipeline optimization | | [data/sources.json](data/sources.json) | Documentation links | ## Templates | Template | Purpose | |----------|---------| | [assets/template-android-test-checklist.md](assets/template-android-test-checklist.md) | Stability checklist | ## Related Skills | Skill | Purpose | |-------|---------| | [software-mobile](../software-mobile/SKILL.md) | Android development | | [qa-testing-strategy](../qa-testing-strategy/SKILL.md) | Test strategy | | [qa-testing-mobile](../qa-testing-mobile/SKILL.md) | Cross-platform mobile | ## Fact-Checking - Use web search/web fetch to verify current external facts, versions, pricing, deadlines, regulations, or platform behavior before final answers. - Prefer primary sources; report source links and dates for volatile information. - If web access is unavailable, state the limitation and mark guidance as unverified. 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