node/test/parallel/test-module-circular-depend...

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'));