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import path from 'path';
import dedent from 'dedent';
import type { TransformOptions } from '@babel/core';
import exctract from '../../../extractor/src';
function getFileName() {
return path.resolve(__dirname, `../__fixtures__/test.js`);
}
function _shake(opts?: TransformOptions, only: string[] = ['__linariaPreval']) {
return (
literal: TemplateStringsArray,
...placeholders: string[]
): [string, Map<string, string[]>] => {
const code = dedent(literal, ...placeholders);
const [shaken, deps] = exctract(
getFileName(),
{
babelOptions: opts || {},
displayName: true,
evaluate: true,
rules: [
{
action: require('../../../extractor/src').default,
},
{
test: /\/node_modules\//,
action: 'ignore',
},
],
},
code,
only
);
return [shaken, deps!];
};
}
it('removes all', () => {
const [shaken] = _shake()`
const { whiteColor: color, anotherColor } = require('…');
const a = color || anotherColor;
color.green = '#0f0';
exports.__linariaPreval = [];
`;
expect(shaken).toMatchSnapshot();
});
it('keeps only code which is related to `color`', () => {
const [shaken] = _shake()`
const { whiteColor: color, anotherColor } = require('…');
const wrap = '';
const a = color || anotherColor;
color.green = '#0f0';
module.exports = { color, anotherColor };
exports.__linariaPreval = [color];
`;
expect(shaken).toMatchSnapshot();
});
it('keeps only code which is related to `anotherColor`', () => {
const [shaken] = _shake()`
const { whiteColor: color, anotherColor } = require('…');
const a = color || anotherColor;
color.green = '#0f0';
exports.__linariaPreval = [anotherColor];
`;
expect(shaken).toMatchSnapshot();
});
it('keeps only code which is related to `a`', () => {
const [shaken] = _shake()`
const { whiteColor: color, anotherColor } = require('…');
const a = color || anotherColor;
color.green = '#0f0';
exports.__linariaPreval = [a];
`;
expect(shaken).toMatchSnapshot();
});
it('shakes imports', () => {
const [shaken] = _shake()`
import { unrelatedImport } from '…';
import { whiteColor as color, anotherColor } from '…';
import defaultColor from '…';
import anotherDefaultColor from '…';
import '…';
require('…');
export default color;
exports.__linariaPreval = [color, defaultColor];
`;
expect(shaken).toMatchSnapshot();
});
it('should keep member expression key', () => {
const [shaken] = _shake()`
const key = 'blue';
const obj = { blue: '#00F' };
const blue = obj[key];
exports.__linariaPreval = [blue];
`;
expect(shaken).toMatchSnapshot();
});
it('shakes exports', () => {
const [shaken] = _shake()`
import { whiteColor as color, anotherColor } from '…';
export const a = color;
export { redColor } from "…";
export { anotherColor };
exports.__linariaPreval = [a];
`;
expect(shaken).toMatchSnapshot();
});
it('shakes es5 exports', () => {
const [shaken] = _shake(undefined, ['redColor', 'greenColor'])`
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.redColor = 'red';
Object.defineProperty(exports, "blueColor", {
enumerable: true,
get: function get() {
return 'blue';
}
});
Object.defineProperty(exports, "greenColor", {
enumerable: true,
get: function get() {
return 'green';
}
});
`;
expect(shaken).toMatchSnapshot();
});
// TODO: this test will be disabled until the shaker is fully implemented
// eslint-disable-next-line jest/no-disabled-tests
it.skip('should throw away any side effects', () => {
const [shaken] = _shake()`
const objects = { key: { fontSize: 12 } };
const foo = (k) => {
const obj = objects[k];
console.log('side effect');
return obj;
};
exports.__linariaPreval = [foo];
`;
expect(shaken).toMatchSnapshot();
});
it('keeps objects as is', () => {
const [shaken] = _shake()`
const fill1 = (top = 0, left = 0, right = 0, bottom = 0) => ({
position: 'absolute',
top,
right,
bottom,
left,
});
const fill2 = (top = 0, left = 0, right = 0, bottom = 0) => {
return {
position: 'absolute',
top,
right,
bottom,
left,
};
};
exports.__linariaPreval = [fill1, fill2];
`;
expect(shaken).toMatchSnapshot();
});
it('shakes sequence expression', () => {
const [shaken] = _shake()`
import { external } from '…';
const color1 = (external, () => 'blue');
let local = '';
const color2 = (local = color1(), () => local);
exports.__linariaPreval = [color2];
`;
expect(shaken).toMatchSnapshot();
});
it('shakes assignment patterns', () => {
const [shaken] = _shake()`
const [identifier = 1] = [2];
const [{...object} = {}] = [{ a: 1, b: 2 }];
const [[...array] = []] = [[1,2,3,4]];
const obj = { member: null };
([obj.member = 42] = [1]);
exports.__linariaPreval = [identifier, object, array, obj];
`;
expect(shaken).toMatchSnapshot();
});
|
