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MURAGE

An AI Chief of Staff and a team that does the work. Free and open source, from Ferrox Labs.

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Testing and quality skills

Unit Test Writer

Unit test mastery covering test structure (Arrange-Act-Assert), naming conventions, test isolation principles, mocking strategies across frameworks (jest.mock, unittest.mock, Mockito), assertion patterns, edge case coverage, parameterized tests, and test doubles taxonomy (spy, stub, fake, dummy, mock).

Download Murage

Free and open source. macOS, Windows and Ubuntu.

Try it

Add the skill to a bot, then ask your Chief of Staff:

“Use the Unit Test Writer skill on this: [describe the job, or paste your notes].”

Unit tests are the foundation of software quality. A good unit test is fast, isolated, repeatable, self-validating, and timely (FIRST). Each test should verify one logical concept, fail for exactly one reason, and serve as documentation for the code under test. Write tests that give confidence, not tests that merely increase coverage numbers.

What it covers

  • Test Structure: Arrange-Act-Assert (AAA)
  • Naming Conventions
  • Test Isolation
  • Test Doubles Taxonomy
  • Mocking Strategies
  • Edge Case Coverage
  • Parameterized Tests
  • Assertion Best Practices

Skill Guard: clean

Scanned and clear. A bot can use it as soon as you add it.

Subject
Testing and quality
Level
intermediate
License
Apache-2.0
testingbest-practicestdd

How to use it.

  1. 1

    Download Murage

    Free for Mac, Windows and Ubuntu.

  2. 2

    Add the skill

    Open Settings → Skills and switch on Unit Test Writer for any bot. Or ask your Chief of Staff to pick skills for a job.

  3. 3

    Give it a job

    The bot reads the skill when the job calls for it, and works the way it lays out.

Put this skill to work.

  • Release notesShip the feature and the announcement together.
  • Skill GuardEvery skill is scanned before a bot can use it.

Questions.

What is the Unit Test Writer skill?+

Unit test mastery covering test structure (Arrange-Act-Assert), naming conventions, test isolation principles, mocking strategies across frameworks (jest.mock, unittest.mock, Mockito), assertion patterns, edge case coverage, parameterized tests, and test doubles taxonomy (spy, stub, fake, dummy, mock).

How much does it cost?+

Nothing. It ships with Murage, which is free and open source. Your bots run on the AI plan you already have.

Can I change it?+

Yes. Open it in Settings → Skills to read, edit or duplicate it. Skill Guard scans it again after every edit.

More testing and quality skills.

  • API FuzzerAPI fuzz testing expert covering property-based testing with Hypothesis and fast-check, fuzz testing strategies for REST and GraphQL APIs.
  • API Testing QuickstartRapid-start guide for testing APIs using Postman and similar tools, covering HTTP request types, authentication methods and collection organization.
  • Chaos EngineerChaos engineering expert covering steady state hypothesis definition, fault injection techniques, game day planning and execution.
  • Contract TesterContract testing expertise covering the Pact framework, consumer-driven contract design, provider verification, Pact Broker setup and can-i-deploy workflow.
  • Integration TesterIntegration test design expertise covering test boundary identification, database testing with Testcontainers and API testing strategies.
  • Testing Coverage AnalyzerTesting strategy assessment evaluating coverage gaps, test quality, test architecture and automation maturity.

All testing and quality skills

Give your first job to Murage.

Download the free app, connect the AI you already pay for, and tell your Chief of Staff what needs doing. Plan on about ten minutes from install to a working team.

Free · Download Murage

No account needed · Runs on the AI plan you already pay for