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nodejs/test/parallel/test-module-circular-dependency-warning.js
Rich Trott 330f25ef82 test: prepare for consistent comma-dangle lint rule
Make changes so that tests will pass when the comma-dangle settings
applied to the rest of the code base are also applied to tests.

PR-URL: https://github.com/nodejs/node/pull/37930
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Derek Lewis <DerekNonGeneric@inf.is>
2021-04-01 23:14:29 -07:00

46 lines
1.9 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const fixtures = require('../common/fixtures');
common.expectWarning({
Warning: [
["Accessing non-existent property 'missingPropB' " +
'of module exports inside circular dependency'],
["Accessing non-existent property 'Symbol(someSymbol)' " +
'of module exports inside circular dependency'],
["Accessing non-existent property 'missingPropModuleExportsB' " +
'of module exports inside circular dependency'],
]
});
const required = require(fixtures.path('cycles', 'warning-a.js'));
assert.strictEqual(Object.getPrototypeOf(required), Object.prototype);
const requiredWithModuleExportsOverridden =
require(fixtures.path('cycles', 'warning-moduleexports-a.js'));
assert.strictEqual(Object.getPrototypeOf(requiredWithModuleExportsOverridden),
Object.prototype);
// If module.exports is not a regular object, no warning should be emitted.
const classExport =
require(fixtures.path('cycles', 'warning-moduleexports-class-a.js'));
assert.strictEqual(Object.getPrototypeOf(classExport).name, 'Parent');
// If module.exports.__esModule is set, no warning should be emitted.
const esmTranspiledExport =
require(fixtures.path('cycles', 'warning-esm-transpiled-a.js'));
assert.strictEqual(esmTranspiledExport.__esModule, true);
// If module.exports.__esModule is being accessed but is not present, e.g.
// because only the one of the files is a transpiled ES module, no warning
// should be emitted.
const halfTranspiledExport =
require(fixtures.path('cycles', 'warning-esm-half-transpiled-a.js'));
assert.strictEqual(halfTranspiledExport.__esModule, undefined);
// No circular check is done to prevent triggering proxy traps, if
// module.exports is set to a proxy that contains a `getPrototypeOf` or
// `setPrototypeOf` trap.
require(fixtures.path('cycles', 'warning-skip-proxy-traps-a.js'));