AI SummaryCursor rules that provide testing guidelines and common mock patterns for Vitest, helping developers quickly set up and maintain consistent test practices in their projects.
Install
Copy this and paste it into Claude Code, Cursor, or any AI assistant:
I want to add the "Mighty_Eagle — Cursor Rules" prompt rules to my project. Repository: https://github.com/dennislee928/Mighty_Eagle Please read the repo to find the rules/prompt file, then: 1. Download it to the correct location (.cursorrules, .windsurfrules, .github/prompts/, or project root — based on the file type) 2. If there's an existing rules file, merge the new rules in rather than overwriting 3. Confirm what was added
Description
Guidelines for testing the application with Vitest
Testing Framework
• vitest is used for testing • Tests are colocated next to the tested file • Example: dir/format.ts and dir/format.test.ts • AI tests are placed in the __tests__ directory and are not run by default (they use a real LLM)
Server-Only Mock
`ts vi.mock("server-only", () => ({})); `
Prisma Mock
`ts import { beforeEach } from "vitest"; import prisma from "@/utils/__mocks__/prisma"; vi.mock("@/utils/prisma"); describe("example", () => { beforeEach(() => { vi.clearAllMocks(); }); it("test", async () => { prisma.group.findMany.mockResolvedValue([]); }); }); `
Helpers
You can get mocks for emails, accounts, and rules here: `tsx import { getEmail, getEmailAccount, getRule } from "@/__tests__/helpers"; `
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Works With
Any AI assistant that accepts custom rules or system prompts