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Add Missing Unit Test

flutter/add-missing-unit-test

Add a new unit test for a class that currently lacks one or add a new test case to an existing test file, verifying improvement with Kover.

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the whole folder, loaded on every use
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instructions only
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copies elsewhere
how many repositories repackaged it
2013
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository
npx skills add https://github.com/flutter/flutter-intellij --skill add-missing-unit-test

The instruction itself

8 sections, as written by the author

Skill: Add Missing Unit Test

You are tasked with adding a new unit test for a class that currently lacks one, or adding a new test case to an existing test file, to improve code coverage and reliability.

Objective

Add a new unit test for a class that currently lacks one, or add a new test case to an existing test file, to improve code coverage and reliability.

Workflow Instructions

1. Identify Target

  • Choose a class in src/ that has complex logic but logic coverage is missing or incomplete.

2. Establish Baseline

  • Run ./gradlew testClasses to compile all sources (production and test) and ensure the project is in a valid state.
  • Run ./gradlew verifyPlugin to ensure no plugin verification issues exist.
  • Run ./gradlew test (or specific test if it exists) to establish current pass/fail status.
  • Run tests with Kover (./gradlew koverHtmlReport or ./gradlew koverXmlReport) to determine current coverage percentage for target class.

3. Implement Test

  • Create a new test class ([ClassName]Test) in testSrc/ if it doesn't exist.
  • Add test cases to cover specific methods, edge cases, and branches.
  • Ensure the test follows project testing conventions (naming, mocking, assertions).

4. Verify

  • Run ./gradlew testClasses to ensure new test compiles.
  • Run new test (and related tests) to ensure it passes.
  • Run ./gradlew verifyPlugin to ensure no regressions in plugin verification.
  • Run Kover again to confirm coverage improvement.

5. Report & Review

  • Summarize test added and coverage improvement.
  • Test Location: Explicitly state *where* in the IDE user should go to test changed functionality (e.g., "Run the new test file [TestFileName]").
  • Action: Ask user to review new test closely. Validate that code being tested is actively used (e.g., check that it is not dead code/0 references).
  • Do not commit or push.
  • Provide a suggested Git commit message, explicitly including the Kover coverage improvement:
  • Example Pattern: Add unit tests for [Class Name]. Coverage verified using Kover. Coverage improvement: [Class Name]: ~[X]% line coverage ([Y] covered, [Z] uncovered).

How to use it

Copy the folder

Take flutter/add-missing-unit-test from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.