android-testing

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

Audit 0.4.1 · source sha 4bc96bf96aac · 27 Oct 2026Report an issue or request a re-scan

• Publishernew-silvermoon GitHub userOwner of the repository this skill is read from
• Source foldernew-silvermoon/awesome-android-agent-skills/.github/skills/testing_and_automation/android-testingThe exact folder we audited
• LicenceApache-2.0As the repository states it
• Commit pinned for this verdict4bc96bf96aacA new audit runs when the source changes
• Repository statusNot archivedLast push 91 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Comprehensive testing strategy involving Unit, Integration, Hilt, and Screenshot tests.

---
name: android-testing
description: Comprehensive testing strategy involving Unit, Integration, Hilt, and Screenshot tests.
---

# Android Testing Strategies

This skill provides expert guidance on testing modern Android applications, inspired by "Now in Android". It covers **Unit Tests**, **Hilt Integration Tests**, and **Screenshot Testing**.

## Testing Pyramid

1.  **Unit Tests**: Fast, isolate logic (ViewModels, Repositories).
2.  **Integration Tests**: Test interactions (Room DAOs, Retrofit vs MockWebServer).
3.  **UI/Screenshot Tests**: Verify UI correctness (Compose).

## Dependencies (`libs.versions.toml`)

Ensure you have the right testing dependencies.

```toml
[libraries]
junit4 = { module = "junit:junit", version = "4.13.2" }
kotlinx-coroutines-test = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-test", version.ref = "kotlinxCoroutines" }
androidx-test-ext-junit = { group = "androidx.test.ext", name = "junit", version = "1.1.5" }
espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version = "3.5.1" }
compose-ui-test = { group = "androidx.compose.ui", name = "ui-test-junit4" }
hilt-android-testing = { group = "com.google.dagger", name = "hilt-android-testing", version.ref = "hilt" }
roborazzi = { group = "io.github.takahirom.roborazzi", name = "roborazzi", version.ref = "roborazzi" }
```

## Screenshot Testing with Roborazzi

Screenshot tests ensure your UI doesn't regress visually. NiA uses **Roborazzi** because it runs on the JVM (fast) without needing an emulator.

### Setup

1.  Add the plugin to `libs.versions.toml`:
    ```toml
    [plugins]
    roborazzi = { id = "io.github.takahirom.roborazzi", version.ref = "roborazzi" }
    ```
2.  Apply it in your module's `build.gradle.kts`:
    ```kotlin
    plugins {
        alias(libs.plugins.roborazzi)
    }
    ```

### Writing a Screenshot Test

```kotlin
@RunWith(AndroidJUnit4::class)
@GraphicsMode(GraphicsMode.Mode.NATIVE)
@Config(sdk = [33], qualifiers = RobolectricDeviceQualifiers.Pixel5)
class MyScreenScreenshotTest {

    @get:Rule
    val composeTestRule = createAndroidComposeRule<ComponentActivity>()

    @Test
    fun captureMyScreen() {
        composeTestRule.setContent {
            MyTheme {
                MyScreen()
            }
        }

        composeTestRule.onRoot()
            .captureRoboImage()
    }
}
```

## Hilt Testing

Use `HiltAndroidRule` to inject dependencies in tests.

```kotlin
@HiltAndroidTest
class MyDaoTest {

    @get:Rule
    var hiltRule = HiltAndroidRule(this)

    @Inject
    lateinit var database: MyDatabase
    private lateinit var dao: MyDao

    @Before
    fun init() {
        hiltRule.inject()
        dao = database.myDao()
    }
    
    // ... tests
}
```

## Running Tests

*   **Unit**: `./gradlew test`
*   **Screenshots**: `./gradlew recordRoborazziDebug` (to record) / `./gradlew verifyRoborazziDebug` (to verify)

Excerpt, first 2,923 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

git clone https://github.com/new-silvermoon/awesome-android-agent-skills
git -C awesome-android-agent-skills checkout 4bc96bf96aac

Works in

1. 2026-10-27
   ✓SAFE B 89 / 100

   first audit · source 4bc96bf96aac

Questions about android-testing

• github.com/new-silvermoon/awesome-android-agent-skills/tree/main — the audited source at commit 4bc96bf96aac and every finding aboveObserved · 27 Oct 2026

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