vitest
Vitest: vi.mocked(...).mockResolvedValue is not a function
Vitest 3 test fails with vi.mocked(...).mockResolvedValue is not a function after restoreAllMocks. Here's how to fix it in one line.
Read the entry →The Log
Every entry
My field notes from building GitProxy. 12 and counting.
2026
vitest
Vitest 4 tests pass locally but fail in CI
Bumping Vitest from 3 to 4 turned my git-proxy CI red while local stayed green. Stale node_modules, broken class mocks, and port clashes. Here's how I fixed each.
Read the entry → github-actions
AI PR review and security scanning with GitHub Actions
Build your own GitHub Actions bot that review pull requests with an LLM: PR Description Checker and Security Scanner.
Read the entry → github-actions
Auto-triage GitHub issues with an AI agent and Actions
Build a GitHub Actions bot that triages issues and PRs with an LLM: label, dedupe, security-scan, and run it on Claude, GPT, or Gemini. Here's how I did it.
Read the entry → trusted-publishing
Switching to npm trusted publishers: mind the Node version
Moving GitProxy's npm publish from a token to OIDC trusted publishers took a few lines, except for one thing that kept failing.
Read the entry → vitest
A Vitest toThrow test that misses a JSON.parse error
A Vitest test using expect().toThrow() let a JSON.parse SyntaxError escape and fail the run instead of catching it. Here's why, and the fix.
Read the entry → git
Moving a Git tag to a newer commit
Moving a Git tag to a newer commit takes a force push, or Git rejects it because the tag already exists. Here's how, plus the gotcha that bites teammates.
Read the entry → docker
Docker EACCES: permission denied, mkdir as a non-root user
A containerized Node app failed with EACCES: permission denied, mkdir './.data' after dropping to a non-root user. Here's the cause and the fix.
Read the entry →2025
vitest
Migrating GitProxy's tests from Mocha and Chai to Vitest
How to fix all the ESM mocking errors when moving GitProxy's test suite from Mocha, Chai, Sinon and proxyquire to Vitest + TypeScript
Read the entry → debugging
Setting environment variables on Windows npm scripts
Why "NODE_ENV=test" fails on Windows, and the one-line fix with cross-env.
Read the entry → vitest
From proxyquire to Vitest: fixing "undefined" is not valid JSON
A git-proxy test failed with 'undefined' is not valid JSON after moving from proxyquire to Vitest. Let's look at the cause and how to fix.
Read the entry → meta
Starting a public debugging log for GitProxy
I've decided to share every debugging session and feature while building GitProxy in the open.
Read the entry →