Cannot override process.env.NODE_ENV

[fadi-george]

Describe the bug

Some scripts/code have conditionals that check against process.env.NODE_ENV. It should overridable for some test.

Reproduction

https://stackblitz.com/edit/node-t29ck6?file=src%2Fsomething.spec.ts

System Info

System:
    OS: macOS 12.1
    CPU: (8) arm64 Apple M1 Pro
    Memory: 212.92 MB / 16.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 16.13.2 - ~/.nvm/versions/node/v16.13.2/bin/node
    npm: 8.1.2 - ~/.nvm/versions/node/v16.13.2/bin/npm
  Browsers:
    Brave Browser: 98.1.35.103
    Chrome: 98.0.4758.102
    Firefox: 96.0.3
    Safari: 15.2
  npmPackages:
    vitest: ^0.3.6 => 0.3.6

Used Package Manager

npm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[sheremet-va]

This is a known limitation vitejs/vite#6935 (review)