Agent-skills-standard android-testing

Write Unit Tests, UI Tests (Compose), and Hilt-integrated tests for Android. Use whenever writing Android test files or asking about runTest, composeTestRule, HiltAndroidRule, MockK, MainDispatcherRule, @TestInstallIn, or how to test a ViewModel/Composable/Repository in Android. (triggers: **/*Test.kt, **/*Rule.kt, @Test, runTest, composeTestRule, HiltAndroidTest, MockK, createAndroidComposeRule, MainDispatcherRule, @TestInstallIn)

install

source · Clone the upstream repo

git clone https://github.com/HoangNguyen0403/agent-skills-standard

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/HoangNguyen0403/agent-skills-standard "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/android/android-testing" ~/.claude/skills/hoangnguyen0403-agent-skills-standard-android-testing && rm -rf "$T"

manifest: skills/android/android-testing/SKILL.md

source content

Android Testing Standards

Priority: P0

Implementation Guidelines

Unit Tests

Scope: ViewModels, Usecases, Repositories, Utils.
Coroutines: Use
```
runTest
```
(kotlinx-coroutines-test). Use
```
MainDispatcherRule
```
to mock Main dispatcher.
Mocking: Use MockK.

UI Integration Tests (Instrumentation)

Scope: Composable Screens, Navigation flows.
Rules: Use
```
createAndroidComposeRule
```
+ Hilt (
```
HiltAndroidRule
```
).
Isolation: Fake repositories in DI modules (
```
@TestInstallIn
```
).

Anti-Patterns

No Real Network in Tests: Always mock with MockK or fake repositories via @TestInstallIn.
No Thread.sleep: Use IdlingResource or composeTestRule.waitUntil for async timing.

References

Test Rules