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'use strict';
const common = require('../common');
const assert = require('assert');
const exec = require('child_process').execFile;
const mjsFile = require.resolve('../fixtures/es-modules/mjs-file.mjs');
const cjsFile = require.resolve('../fixtures/es-modules/cjs-file.cjs');
const packageWithoutTypeMain =
require.resolve('../fixtures/es-modules/package-without-type/index.js');
const packageTypeCommonJsMain =
require.resolve('../fixtures/es-modules/package-type-commonjs/index.js');
const packageTypeModuleMain =
require.resolve('../fixtures/es-modules/package-type-module/index.js');
// Check that running `node` without options works
expect('', mjsFile, '.mjs file');
expect('', cjsFile, '.cjs file');
expect('', packageTypeModuleMain, 'package-type-module');
expect('', packageTypeCommonJsMain, 'package-type-commonjs');
expect('', packageWithoutTypeMain, 'package-without-type');
// Check that --input-type isn't allowed for files
expect('--input-type=module', packageTypeModuleMain,
'ERR_INPUT_TYPE_NOT_ALLOWED', true);
try {
require('../fixtures/es-modules/package-type-module/index.js');
assert.fail('Expected CJS to fail loading from type: module package.');
} catch (e) {
assert(e.toString().match(/Error \[ERR_REQUIRE_ESM\]: Must use import to load ES Module:/));
}
function expect(opt = '', inputFile, want, wantsError = false) {
// TODO: Remove when --experimental-modules is unflagged
opt = `--experimental-modules ${opt}`;
const argv = [inputFile];
const opts = {
env: Object.assign({}, process.env, { NODE_OPTIONS: opt }),
maxBuffer: 1e6,
};
exec(process.execPath, argv, opts, common.mustCall((err, stdout, stderr) => {
if (wantsError) {
stdout = stderr;
} else {
assert.ifError(err);
}
if (stdout.includes(want)) return;
const o = JSON.stringify(opt);
assert.fail(`For ${o}, failed to find ${want} in: <\n${stdout}\n>`);
}));
}
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