new-silvermoon/awesome-android-agent-skills

android-testing

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

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使用方法

  1. 复制安装命令,在自己的智能体环境安装前先检查源码包。
  2. 从原始文档核对所需工具、凭据和支持的宿主。
  3. 说明输入材料与期望交付物,并对照来源检查输出。
npx skills add https://github.com/new-silvermoon/awesome-android-agent-skills --skill android-testing

开始前需了解

  • 安装不包含模型订阅、API 额度或访问文件的权限。
  • 仓库星数和安装量反映活跃情况,不等于独立质量或安全测试。
仓库原始内容

按源仓库内容呈现,保留标题、案例、代码、表格、链接以及原文引用的演示图片。

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" }
  1. 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)

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