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Java Testing Advanced

Checked
pluginagentmarketplace·vlatest·backend

Helps with Java, testing as part of developing backend services and APIs workflows.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add pluginagentmarketplace/custom-plugin-java --skill java-testing-advanced -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

pluginagentmarketplace

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned pluginagentmarketplace/custom-plugin-java at 51aa571c25.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
51aa571c25
Manifest
skills/java-testing-advanced/SKILL.md
Scanned
7 files, 550 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill provides advanced testing capabilities for Java applications, particularly those involved in backend services and APIs. It focuses on techniques to improve test coverage and reliability, including integration testing with Testcontainers, contract testing using Pact, mutation testing with PIT, and property-based testing. This allows developers to create more robust and dependable software through sophisticated testing methodologies.

When to use it

  • You need to perform integration tests against real databases.
  • You want to verify API contracts between services.
  • You're looking for gaps in your test suite using mutation testing.
  • You want to automatically generate test cases with property-based testing.

Key capabilities

  • Testcontainers: Integration testing with containers (e.g., PostgreSQL, Kafka).
  • Contract Testing (Pact): Verification of API contracts between consumer and provider services.
  • Mutation Testing (PIT): Identifying weaknesses in test suites by introducing mutations to the code.
  • Property-Based Testing: Generating tests based on properties or invariants of the system under test.

Example prompts

  • "Generate integration tests for my order service using Testcontainers and PostgreSQL."
  • "Create a Pact contract between my user service and order service APIs."
  • "Run mutation testing on my com.example.service package to find gaps in my unit tests."
  • "Generate property-based tests for reversing a list of integers."

Tips & gotchas

  • Requires familiarity with Java, Maven/Gradle, and the specific testing frameworks (Testcontainers, Pact, PIT).
  • Container startup can be slow; consider reusing containers to improve performance.
  • Port conflicts can occur when using Testcontainers – ensure ports are properly configured.