'use strict';
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var test = require('tape');
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var keys = require('object-keys');
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var semver = require('semver');
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var mockProperty = require('mock-property');
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var isCore = require('../');
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var data = require('../core.json');
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var supportsNodePrefix = semver.satisfies(process.versions.node, '^14.18 || >= 16', { includePrerelease: true });
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test('core modules', function (t) {
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t.test('isCore()', function (st) {
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st.ok(isCore('fs'));
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st.ok(isCore('net'));
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st.ok(isCore('http'));
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st.ok(!isCore('seq'));
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st.ok(!isCore('../'));
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st.ok(!isCore('toString'));
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st.end();
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});
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t.test('core list', function (st) {
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var cores = keys(data);
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st.plan(cores.length);
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for (var i = 0; i < cores.length; ++i) {
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var mod = cores[i];
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var requireFunc = function () { require(mod); }; // eslint-disable-line no-loop-func
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if (isCore(mod)) {
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st.doesNotThrow(requireFunc, mod + ' supported; requiring does not throw');
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} else {
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st['throws'](requireFunc, mod + ' not supported; requiring throws');
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}
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}
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st.end();
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});
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t.test('core via repl module', { skip: !data.repl }, function (st) {
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var libs = require('repl')._builtinLibs; // eslint-disable-line no-underscore-dangle
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if (!libs) {
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st.skip('repl._builtinLibs does not exist');
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} else {
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for (var i = 0; i < libs.length; ++i) {
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var mod = libs[i];
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st.ok(data[mod], mod + ' is a core module');
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st.doesNotThrow(
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function () { require(mod); }, // eslint-disable-line no-loop-func
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'requiring ' + mod + ' does not throw'
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);
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if (mod.slice(0, 5) !== 'node:') {
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if (supportsNodePrefix) {
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st.doesNotThrow(
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function () { require('node:' + mod); }, // eslint-disable-line no-loop-func
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'requiring node:' + mod + ' does not throw'
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);
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} else {
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st['throws'](
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function () { require('node:' + mod); }, // eslint-disable-line no-loop-func
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'requiring node:' + mod + ' throws'
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);
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}
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}
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}
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}
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st.end();
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});
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t.test('core via builtinModules list', { skip: !data.module }, function (st) {
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var libs = require('module').builtinModules;
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if (!libs) {
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st.skip('module.builtinModules does not exist');
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} else {
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var excludeList = [
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'_debug_agent',
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'v8/tools/tickprocessor-driver',
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'v8/tools/SourceMap',
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'v8/tools/tickprocessor',
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'v8/tools/profile'
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];
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// see https://github.com/nodejs/node/issues/42785
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if (semver.satisfies(process.version, '>= 18')) {
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libs = libs.concat('node:test');
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}
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for (var i = 0; i < libs.length; ++i) {
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var mod = libs[i];
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if (excludeList.indexOf(mod) === -1) {
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st.ok(data[mod], mod + ' is a core module');
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st.doesNotThrow(
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function () { require(mod); }, // eslint-disable-line no-loop-func
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'requiring ' + mod + ' does not throw'
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);
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if (mod.slice(0, 5) !== 'node:') {
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if (supportsNodePrefix) {
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st.doesNotThrow(
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function () { require('node:' + mod); }, // eslint-disable-line no-loop-func
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'requiring node:' + mod + ' does not throw'
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);
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} else {
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st['throws'](
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function () { require('node:' + mod); }, // eslint-disable-line no-loop-func
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'requiring node:' + mod + ' throws'
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);
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}
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}
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}
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}
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}
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st.end();
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});
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t.test('Object.prototype pollution', function (st) {
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var nonKey = 'not a core module';
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st.teardown(mockProperty(Object.prototype, 'fs', { value: false }));
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st.teardown(mockProperty(Object.prototype, 'path', { value: '>= 999999999' }));
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st.teardown(mockProperty(Object.prototype, 'http', { value: data.http }));
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st.teardown(mockProperty(Object.prototype, nonKey, { value: true }));
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st.equal(isCore('fs'), true, 'fs is a core module even if Object.prototype lies');
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st.equal(isCore('path'), true, 'path is a core module even if Object.prototype lies');
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st.equal(isCore('http'), true, 'path is a core module even if Object.prototype matches data');
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st.equal(isCore(nonKey), false, '"' + nonKey + '" is not a core module even if Object.prototype lies');
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st.end();
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});
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t.end();
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});
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