Using Robolectric Correctly

Q: What is a Claude Code skill and how does the Using Robolectric Correctly skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Using Robolectric Correctly is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Security · Sub-category: threat-hunting · Last updated: 2026-05-28

Use this skill to run Android-aware unit tests on the JVM with Robolectric — the right runner choice (AndroidJUnit4 vs RobolectricTestRunner), @Config sdk/qualifiers/application, the includeAndroidResources requirement, common shadows (ShadowApplication, ShadowLog, ShadowLooper, ShadowPackageManager, ShadowSystemClock), looper draining (shadowOf(Looper.getMainLooper()).idle()), and when NOT to reach for Robolectric (screenshot tests, RenderThread, accessibility services). Also covers the AGP 7.2+ sharedTest reality check and the migration to KMP androidHostTest/androidDeviceTest. If the user mentions Robolectric, AndroidJUnit4 host test, RobolectricTestRunner, @Config, includeAndroidResources, ShadowLooper.idle, shadowOf, sharedTest broken on AGP 7.2, ParameterizedRobolectricTestRunner, "test passes on JVM fails on device", or "Resources NotFoundException" in unit tests, use this skill.

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Robolectric simulates Android on the JVM by swapping in pure-Java reimplementations of system classes ("shadows"). It is fast (10-100x vs an emulator) but not an emulator: no real RenderThread, no real Binder, no real GPU. This skill locks down the runner choice, the @Config matrix, the looper draining ritual, and the AGP 7.2+ sharedTest gotcha. Compose-on-Robolectric specifics live in ../../../compose/synchronization/controlling-the-test-clock/SKILL.md.

What this skill does

Using Robolectric Correctly is a community-contributed Claude Code skill in the threat-hunting sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/using-robolectric-correctly/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Using Robolectric Correctly Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 153,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/using-robolectric-correctly
curl -L https://claudskills.com/skills/using-robolectric-correctly/SKILL.md \
  -o ~/.claude/skills/using-robolectric-correctly/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/using-robolectric-correctly/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/using-robolectric-correctly/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\using-robolectric-correctly\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Using Robolectric Correctly Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/using-robolectric-correctly/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Using Robolectric Correctly skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Using Robolectric Correctly skill?

Use Using Robolectric Correctly when your Claude Code task falls under the Security category — specifically in the threat hunting area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Using Robolectric Correctly" or describe the task and let Claude pick). Browse related skills at /category/security/.

What is a Claude Code skill and how does the Using Robolectric Correctly skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Using Robolectric Correctly is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/skydoves/android-testing-skills/blob/HEAD/jvm-tests/robolectric/using-robolectric-correctly/SKILL.md
License: Apache-2.0
Author: skydoves

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

skydoves. (2026). Using Robolectric Correctly [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/using-robolectric-correctly/

BibTeX

@misc{using-robolectric-correctly-2026,
  author    = {skydoves},
  title     = {Using Robolectric Correctly [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/using-robolectric-correctly/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/using-robolectric-correctly.svg)](https://claudskills.com/skills/using-robolectric-correctly/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-07-18 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (filesystem), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
⚠ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/using-robolectric-correctly/#security)

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Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills

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