diff options
Diffstat (limited to 'test/es-module/test-cjs-esm-warn.js')
-rw-r--r-- | test/es-module/test-cjs-esm-warn.js | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/test/es-module/test-cjs-esm-warn.js b/test/es-module/test-cjs-esm-warn.js new file mode 100644 index 0000000000..ec368c73e2 --- /dev/null +++ b/test/es-module/test-cjs-esm-warn.js @@ -0,0 +1,38 @@ +'use strict'; + +const common = require('../common'); +const fixtures = require('../common/fixtures'); +const { spawn } = require('child_process'); +const assert = require('assert'); +const path = require('path'); + +const requiring = path.resolve(fixtures.path('/es-modules/cjs-esm.js')); +const required = path.resolve( + fixtures.path('/es-modules/package-type-module/cjs.js') +); +const pjson = path.resolve( + fixtures.path('/es-modules/package-type-module/package.json') +); + +const basename = 'cjs.js'; + +const child = spawn(process.execPath, [requiring]); +let stderr = ''; +child.stderr.setEncoding('utf8'); +child.stderr.on('data', (data) => { + stderr += data; +}); +child.on('close', common.mustCall((code, signal) => { + assert.strictEqual(code, 0); + assert.strictEqual(signal, null); + + assert.strictEqual(stderr, `(node:${child.pid}) Warning: ` + + 'require() of ES modules is not supported.\nrequire() of ' + + `${required} from ${requiring} ` + + 'is an ES module file as it is a .js file whose nearest parent ' + + 'package.json contains "type": "module" which defines all .js ' + + 'files in that package scope as ES modules.\nInstead rename ' + + `${basename} to end in .cjs, change the requiring code to use ` + + 'import(), or remove "type": "module" from ' + + `${pjson}.\n`); +})); |