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// Flags: --experimental-require-module | ||
'use strict'; | ||
const common = require('../common'); | ||
const assert = require('assert'); | ||
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// This test demonstrates interop between CJS and CJS represented as ESM | ||
// under the `__cjsModule` pattern. | ||
(async () => { | ||
// dep.js and index.js are CJS modules. | ||
// dep exports 'cjs', while index reexports dep: | ||
assert.strictEqual(require('../fixtures/cjsesm/dep.js'), 'cjs'); | ||
assert.strictEqual(require('../fixtures/cjsesm/index.js'), 'cjs'); | ||
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// Now we have ESM conversions of these dependencies, using __cjsModule, | ||
// that behave equivalently under require(esm) despite the custom string import: | ||
assert.strictEqual(require('../fixtures/cjsesm/dep.mjs'), 'cjs'); | ||
assert.strictEqual(require('../fixtures/cjsesm/index.mjs'), 'cjs'); | ||
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// Furthermore, if `index.mjs` imports from `dep.mjs` directly, the reexport | ||
// still works: | ||
assert.strictEqual(require('../fixtures/cjsesm/index-importing-depmjs.mjs'), 'cjs'); | ||
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// Finally, the ESM representations under these conversions all match equivalently: | ||
const esmCjsImport = await import('../fixtures/cjsesm/index.js'); | ||
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assert.deepStrictEqual(await import('../fixtures/cjsesm/index.mjs'), esmCjsImport); | ||
assert.deepStrictEqual(await import('../fixtures/cjsesm/index-importing-depmjs.mjs'), esmCjsImport); | ||
})().then(common.mustCall()); |