backend-testing skillA
backend-testing is agent-read markdown (skill) from bekaku/java-spring-boot-starter: Use before finishing any backend implementation in this Spring Boot repo — to choose the right evidence (unit, ownership, filter-chain, PostgreSQL, @TempDir, SSE), write focused JUnit 5 + Mockito + AssertJ tests, run the narrowest Gradle command, and report results honestly..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Backend Testing — Playbook
> **Role:** HOW to prove a change. Binding evidence rules + setup facts: `skills/backend/TESTING.md` (read it too).
> **Requires:** `backend-core`.
## Step 1 — pick the evidence
Match the boundary you changed to a row of the evidence matrix in `TESTING.md`. Typical picks:
| You changed | Minimum evidence |
|---|---|
| Service method | Unit test: happy path + one failure path |
| Controller handler | Unit test on the controller with mocked service (status + body + error) |
| Owner-scoped read/write | Not-owned id → `404` and `verifyNoInteractions(downstream)` |
| Route access / filter / tokens | Filter-chain HTTP test (cookie + Bearer). If no harness exists, say so in the report |
| Migration / native SQL / MyBatis XML | Run on disposable PostgreSQL, or report "not validated on PostgreSQL" |
| Files | `@TempDir` test: traversal rejected, other owner rejected, cleanup on failure |
## Step 2 — write the test
Place it next to the existing ones: `src/test/java/com/bekaku/api/spring/{controller/api|serviceImpl}/{Subject}Test.java`.
```java
@ExtendWith(MockitoExtension.class)
class {Model}ControllerTest {
@Mock {Model}Service service;
…Read the whole file at its exact version.
How to install
mdr add bekaku/java-spring-boot-starter/backend-testing@git:20260924.15dc64amdr add bekaku/java-spring-boot-starter/backend-testing@sha256:79065cb72beba39fPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_4ba255kyisbyab47)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260924.15dc64a latest | 2026-09-24 | 15dc64a | 3,930 B | A | view · diff |
| git:20260923.b5acb6d | 2026-09-23 | b5acb6d | 2,078 B | A | view · diff |
| git:20260921.de5eb9f | 2026-09-21 | de5eb9f | 1,307 B | A | view |
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 (3930 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
bekaku/java-spring-boot-starter · 31 stars · license none · pushed 2026-09-24 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_4ba255kyisbyab47 GET https://markdownregistry.com/api/v1/resolve?ref=bekaku/java-spring-boot-starter/backend-testing GET https://markdownregistry.com/api/v1/blob/79065cb72beba39f21eefd138640ba98984f1fb212dd3fdfa3c6d7cb4a138c06
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