Contract Test Generator Skill
Generates contract tests for API migrations, supporting consumer-driven contracts, provider verification, and breaking change detection.
Purpose
Enable API contract testing for:
- •Consumer contract generation
- •Provider verification
- •Schema validation
- •Breaking change detection
- •Mock server generation
Capabilities
1. Consumer Contract Generation
- •Generate from API usage
- •Extract from tests
- •Build from specs
- •Support multiple formats
2. Provider Verification
- •Verify against contracts
- •Test all consumers
- •Check compatibility
- •Document failures
3. Schema Validation
- •Validate request schemas
- •Check response schemas
- •Verify data types
- •Enforce constraints
4. Breaking Change Detection
- •Detect field removals
- •Find type changes
- •Identify required additions
- •Flag compatibility issues
5. Mock Server Generation
- •Generate from contracts
- •Support stub responses
- •Handle scenarios
- •Enable development isolation
6. Contract Versioning
- •Track contract versions
- •Manage compatibility
- •Support migrations
- •Document changes
Tool Integrations
| Tool | Purpose | Integration Method |
|---|---|---|
| Pact | Consumer-driven contracts | CLI |
| Spring Cloud Contract | Java contracts | CLI |
| Dredd | API validation | CLI |
| Prism | Mock server | CLI |
| WireMock | Mock server | CLI |
Output Schema
json
{
"generationId": "string",
"timestamp": "ISO8601",
"contracts": [
{
"consumer": "string",
"provider": "string",
"interactions": [
{
"description": "string",
"request": {},
"response": {}
}
]
}
],
"verification": {
"passed": "boolean",
"results": []
},
"artifacts": {
"contractFiles": [],
"mockServerConfig": "string"
}
}
Integration with Migration Processes
- •api-modernization: Contract verification
- •monolith-to-microservices: Service contracts
Related Skills
- •
openapi-generator: Spec generation - •
api-compatibility-analyzer: Breaking changes
Related Agents
- •
regression-detector: Regression prevention - •
cross-team-integrator: Contract coordination