restassured-core

name	restassured-core
description	Use when Codex needs to implement, refactor, debug, or extend Rest Assured API tests with JUnit 5, reusable request and response specifications, authentication helpers, DTOs, contract checks, and service-test best practices.
metadata	{"author":"jovd83","version":"1.0","dispatcher-category":"testing","dispatcher-capabilities":"api-automation, restassured-core, api-test-implementation","dispatcher-accepted-intents":"implement_api_confirmation_test, debug_api_test, review_api_test","dispatcher-input-artifacts":"repo_context, requirements, api_contract, failing_api_scenario","dispatcher-output-artifacts":"api_test, implementation_guidance, fix_plan","dispatcher-stack-tags":"restassured, api-testing, implementation","dispatcher-risk":"high","dispatcher-writes-files":true}

Rest Assured Core

1. Preflight

1. Inspect the build file, Java version, test engine, and module boundaries.
2. Inspect API documentation, existing contracts, auth flow, and environment variables.
3. Read preflight.md before major changes.

2. Choose the Test Shape

1. Use service-test-types.md to classify the test as smoke, regression, contract, integration, negative, or workflow.
2. Read project-structure.md before creating new packages.
3. Use JUnit 5 patterns from junit5-patterns.md.
4. Use build guidance from maven-and-gradle.md.
5. Decide whether the suite is runtime-aligned, contract-enforcement, or mixed before writing assertions.

3. Implement the Backbone

1. Build shared request and response specs from request-response-specs.md.
2. Centralize auth logic with authentication.md.
3. Add semantic assertions using validation-and-assertions.md.
4. Add schema or contract checks only when they increase signal; use schema-and-contract-validation.md.
5. Build deterministic test data with test-data-management.md.
6. In runtime-aligned mode, assert the live behavior in executable tests and route discrepancies to ../documentation/contract-mismatches/SKILL.md.
7. In contract-enforcement mode, keep assertions aligned to the specification and tag the tests so drift is visible as an explicit contract failure.
8. In mixed mode, keep runtime-aligned regression tests separate from contract-enforcement checks by tag, package, or class naming.

4. Add Service-Test Details

1. Read testcontainers-and-wiremock.md before introducing containers or stubs.
2. Read observability-and-redaction.md before enabling request or response logging.
3. Read security-negative-testing.md for authz, authn, and abuse cases.
4. Read graphql-and-file-upload.md for GraphQL or multipart endpoints.
5. Read xml-and-soap-payloads.md for XML or SOAP payload handling.
6. Read the framework recipe that matches the repo: framework-spring-boot.md, framework-quarkus.md, or framework-micronaut.md.

5. Run and Debug

1. Run the narrowest relevant test first.
2. Use debugging.md for triage.
3. Use error-index.md when a common failure pattern appears.
4. If a failure reveals contract drift, capture the raw request, raw response metadata, and affected contract path before changing assertions.
5. When a contract-enforcement test fails because the runtime drift is already known, preserve the failing evidence and link it to the mismatch artifact instead of muting the test silently.

6. Examples

1. Input: Implement POST /orders negative tests from the approved coverage plan. Output: Add OrdersApiTest, shared specs, data builders, and explicit 400, 401, 403, 409, and 422 assertions.
2. Input: Refactor these duplicated given/when/then chains. Output: Extract request and response specs plus auth support before changing test intent.
3. Input: The OpenAPI says JSON but the live 404 returns XML. Output: Keep the executable test aligned to the live XML response, then document the contract mismatch separately.
4. Input: Keep strict contract checks, but do not break the main regression suite. Output: Put the contract-enforcement assertions in a separate tagged slice and keep the runtime-aligned suite stable.

7. Troubleshooting

1. Problem: The suite uses static RestAssured.baseURI everywhere. Fix: Move configuration into request specs or JUnit lifecycle setup.
2. Problem: Tests pass only when run in order. Fix: Isolate data setup and cleanup per test or per fixture.
3. Problem: Logs expose secrets. Fix: Add redaction filters and restrict full logging to failures.
4. Problem: The contract and runtime disagree on status, content type, or payload shape. Fix: Treat the live runtime as the source for executable assertions, then create a mismatch record instead of forcing the test to match the contract.
5. Problem: The user needs both regression stability and strict spec conformance. Fix: Split the suite into runtime-aligned and contract-enforcement slices instead of forcing one assertion mode to do both jobs.