babel-plugin-remove-test-code

Babel plugin that remove test codes from the file.

See an example at "examples" how the code looks like. ("examples/react-app/src/components/counter.jsx")

(Currently, Jest runs the same tests because they are listed directly and indirectly with import statement.)

Usage

You can write a unit-test in the same file. This Babel plugin removes all test code not to bundle it into the production build.

// main.js
const message = "!";

while (1) {
  alert(message);
}

test("message", () => {
  expect(message).toBe("!");
});

will be below in after be processed by this plugin

// main.js
const message = "!";

while (1) {
  alert(message);
}

Currently, this supports MagicComment (default) and Jest.

Configuration

When you use Jest as a test framework,

{
  "plugins": [["babel-plugin-remove-test-code", { "targets": ["Jest"] }]]
}

TODO

• magic comments to remove or not to remove
• cares declared variable by nested destructuring
• (Jest) the Jest Object & mockFn
• Examples
• cares global objects (global, window, self, this, etc...)

Notes

• binging API instead of manual variable declaration search
  (not possible for assignment of global can't be detected)
• skip children if out of range
  (not possible due to enter exit)

License

MIT