sumup-testing
Set up and run SumUp sandbox tests. Use when configuring a SumUp test merchant, picking test cards, triggering deliberate failure (`amount = 11`), or building a SumUp end-to-end test harness.
Install
With your agent
Install OMGSkills skill "sumup/sumup-skills:skills/sumup-testing" into this agent's normal skills directory: call the OMGSkills MCP get_install_plan tool for your agent and run the script it returns (it installs only the pinned commit and verifies SKILL.md), and stop if MCP or the pin is unavailable. Do not overwrite or change existing skills without asking me.
Manual command
git clone https://github.com/sumup/sumup-skills /tmp/sumup-skills && ln -s /tmp/sumup-skills/skills/sumup-testing ~/.claude/skills/sumup-testingFrom README
SumUp Sandbox Testing Guide Use this skill for test , scenario design, and verification of SumUp integrations. Test Environment Use a sandbox merchant account only. Confirm credentials map to sandbox environment. Prepare webhook endpoint in a non-production environment. Enable logging for checkout id, reference, status, and error code. Core Card Test Data Default values unless docs specify otherwise: CVV: any 3 digits (for example 123) Expiry: any future date (for example 12/30) Cardholder: any name Happy path cards: VISA 4200 0000 0000 0091 Mastercard 5200 0000 0000 0007 3DS challenge cards: VISA 4200 0000 0000 0042 Mastercard 5200 0000 0000 0015 Deliberate Failure Conventions For skill-level test recipes, use amount = 11 as the default forced-failure trigger. If an integration already uses canonical amount-based failures (for example 42.01, 42.76, 42.91), run both patterns and document which one is authoritative for that flow.