Agent skill · software engineering · aiskillstore
create-unit-test
Create and run unit tests following the project's architecture and guidelines (Robolectric, naming, location).
Why this skill is useful
Provides specific guidelines for creating unit tests with Robolectric, including naming conventions and file locations that the AI wouldn't reliably generate on its own.
What it needs
Requires gradle installed locally. About 1k tokens when loaded. Last updated 2026-08-07. 405 stars on the source repository.
What this skill does
Create Unit Test This skill guides the creation of unit tests to ensuring consistency and correctness. Workflow 1. Analyze and Plan: Goal: Understand what needs testing. Action: Examine the source code. Action: Identify "happy path" cases (core functionality). Action: Identify "error cases" and "edge cases" based on likelihood. Action: Do not suggest implementation details unless asked; focus on behavior. 2. Setup Test File: Naming: [OriginalClassName]Test.kt. Location: [module]/src/test/java/[package/path]/. Runner: If testing Android components, you MUST use Robolectric. Mocking: Prefer creating Fakes over Mocks or patches. Use Mocks only if Fakes are too complex. 3. Implement Tests: Write clear, descriptive test methods. Follow the "Arrange-Act-Assert" pattern. Ensure all resources (strings, themes) are properly mocked or provided via Robolectric. 4. Run Tests: Command: ./gradlew :[module]:testDebugUnitTest Example: ./gradlew :database:testDebugUnitTest Tip: Before any commit, run ./gradlew testDebugUnitTest to ensure everything passes. 5. Handle Failures: Goal: Diagnose and fix issues. Action: If a test fails, locate the full error report. Path: [module]/build/test-results/testDebugUnitTest/TEST-[package.name.TestClassName].xml. Example: app/build/test-results/testDebugUnitTest/TEST-com.anysoftkeyboard.janus.app.MainActivityTest.xml. Guidelines Consistency: Always place tests in the test source set, not androidTest (unless specifically writing instrumentation tests, which is rare for this skill). Reliability: Avoid flaky tests. Ensure deterministic behavior.
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills aiskillstore/create-unit-test