java-unit-test-generator SKILL.md skillA
java-unit-test-generator from timwukp/agent-skills-best-practice is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add timwukp/agent-skills-best-practice/java-unit-test-generator@v1.1.0Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- timwukp/agent-skills-best-practice
- Path
skills/skills/java-unit-test-generator/SKILL.md- Versions recorded
- 1
- Latest version
- v1.1.0, committed Mar 11, 2026
- Size
- 3,876 bytes
- Repository stars
- 12
- License
- MIT
Generates JUnit unit tests for Java classes with loop prevention and incremental generation. Triggers on: "generate unit tests", "create JUnit tests", "test Java class", "add test coverage".
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Java Unit Test Generator
## Instructions
### Step 1: Scope Definition
Before generating tests, ask:
1. Which class/method?
2. Coverage goal? (Basic = happy path | Standard = + errors | Comprehensive = + edge cases)
3. Framework? (JUnit 4, JUnit 5, TestNG)
4. Mocking? (Mockito, EasyMock, none)
Provide an upfront estimate: **10-15 credits per method**.
### Step 2: Generate 3 Tests Per Batch
For each method, generate exactly 3 tests:
1. Happy path
2. Error handling
3. Edge case
Use this structure:
```java
@Test
@DisplayName("Should [expected behavior] when [condition]")
void test[MethodName][Scenario]() {
// Given - setup
// When - execute
// Then - verify
}
```
**STOP after each batch.** Ask the user to run and confirm before continuing.
### Step 3: Validation Gate
Do NOT generate more tests until the user confirms the current batch works.
Validation command:
```bash
python scripts/validate_tests.py <TestClassName>
```
### Step 4: Fix or Skip (Max 2 Attempts)
If tests fail:
- **Attempt 1:** Fix compilation errors (imports, syntax)
- **Attempt 2:** Fix logic errors (assertions, test data)
…Read the whole file at its exact version.
How to install
mdr add timwukp/agent-skills-best-practice/java-unit-test-generator@sha256:eb7ede93599738adThe line at the top of this page pins the label v1.1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_56ru5mx4uuau5cdx)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 11, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3876 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
timwukp/agent-skills-best-practice · 12 stars · license MIT · pushed 2026-09-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_56ru5mx4uuau5cdx GET https://markdownregistry.com/api/v1/resolve?ref=timwukp/agent-skills-best-practice/java-unit-test-generator GET https://markdownregistry.com/api/v1/blob/eb7ede93599738adbbf732e7615d962ca00679c90f9eba6ed546a84b7f2fd05e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.