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Commit 1dc6b38

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richardlauMylesBorins
richardlau
authored and
MylesBorins
committed
test: add test for loading from global folders
Test executes with a copy of the node executable since $PREFIX/lib/node is relative to the executable location. PR-URL: #9283 Reviewed-By: Sam Roberts <vieuxtech@gmail.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> Reviewed-By: João Reis <reis@janeasystems.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
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‎test/fixtures/test-module-loading-globalpaths/home-pkg-in-both/.node_libraries/foo.js‎

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exports.string = '$HOME/.node_libraries';
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‎test/fixtures/test-module-loading-globalpaths/home-pkg-in-both/.node_modules/foo.js‎

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‎test/fixtures/test-module-loading-globalpaths/home-pkg-in-node_libraries/.node_libraries/foo.js‎

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exports.string = '$HOME/.node_libraries';
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‎test/fixtures/test-module-loading-globalpaths/home-pkg-in-node_modules/.node_modules/foo.js‎

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‎test/fixtures/test-module-loading-globalpaths/local-pkg/node_modules/foo.js‎

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‎test/fixtures/test-module-loading-globalpaths/local-pkg/test.js‎

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'use strict';
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console.log(require('foo').string);
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‎test/fixtures/test-module-loading-globalpaths/node_path/foo.js‎

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exports.string = '$NODE_PATH';
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‎test/parallel/test-module-loading-globalpaths.js‎

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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const path = require('path');
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const fs = require('fs');
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const child_process = require('child_process');
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const pkgName = 'foo';
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if (process.argv[2] === 'child') {
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console.log(require(pkgName).string);
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} else {
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common.refreshTmpDir();
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// Copy node binary into a test $PREFIX directory.
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const prefixPath = path.join(common.tmpDir, 'install');
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fs.mkdirSync(prefixPath);
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let testExecPath;
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if (common.isWindows) {
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testExecPath = path.join(prefixPath, path.basename(process.execPath));
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} else {
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const prefixBinPath = path.join(prefixPath, 'bin');
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fs.mkdirSync(prefixBinPath);
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testExecPath = path.join(prefixBinPath, path.basename(process.execPath));
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}
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const mode = fs.statSync(process.execPath).mode;
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fs.writeFileSync(testExecPath, fs.readFileSync(process.execPath));
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fs.chmodSync(testExecPath, mode);
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const runTest = (expectedString, env) => {
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const child = child_process.execFileSync(testExecPath,
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[ __filename, 'child' ],
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{ encoding: 'utf8', env: env });
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assert.strictEqual(child.trim(), expectedString);
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};
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const testFixturesDir = path.join(common.fixturesDir,
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path.basename(__filename, '.js'));
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const env = Object.assign({}, process.env);
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// Turn on module debug to aid diagnosing failures.
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env['NODE_DEBUG'] = 'module';
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// Unset NODE_PATH.
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delete env['NODE_PATH'];
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// Test empty global path.
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const noPkgHomeDir = path.join(common.tmpDir, 'home-no-pkg');
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fs.mkdirSync(noPkgHomeDir);
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env['HOME'] = env['USERPROFILE'] = noPkgHomeDir;
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assert.throws(
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() => {
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child_process.execFileSync(testExecPath, [ __filename, 'child' ],
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{ encoding: 'utf8', env: env });
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},
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new RegExp('Cannot find module \'' + pkgName + '\''));
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// Test module in $HOME/.node_modules.
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const modHomeDir = path.join(testFixturesDir, 'home-pkg-in-node_modules');
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env['HOME'] = env['USERPROFILE'] = modHomeDir;
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runTest('$HOME/.node_modules', env);
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// Test module in $HOME/.node_libraries.
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const libHomeDir = path.join(testFixturesDir, 'home-pkg-in-node_libraries');
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env['HOME'] = env['USERPROFILE'] = libHomeDir;
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runTest('$HOME/.node_libraries', env);
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// Test module both $HOME/.node_modules and $HOME/.node_libraries.
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const bothHomeDir = path.join(testFixturesDir, 'home-pkg-in-both');
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env['HOME'] = env['USERPROFILE'] = bothHomeDir;
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runTest('$HOME/.node_modules', env);
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// Test module in $PREFIX/lib/node.
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// Write module into $PREFIX/lib/node.
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const expectedString = '$PREFIX/lib/node';
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const prefixLibPath = path.join(prefixPath, 'lib');
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fs.mkdirSync(prefixLibPath);
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const prefixLibNodePath = path.join(prefixLibPath, 'node');
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fs.mkdirSync(prefixLibNodePath);
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const pkgPath = path.join(prefixLibNodePath, pkgName + '.js');
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fs.writeFileSync(pkgPath, 'exports.string = \'' + expectedString + '\';');
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env['HOME'] = env['USERPROFILE'] = noPkgHomeDir;
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runTest(expectedString, env);
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// Test module in all global folders.
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env['HOME'] = env['USERPROFILE'] = bothHomeDir;
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runTest('$HOME/.node_modules', env);
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// Test module in NODE_PATH is loaded ahead of global folders.
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env['HOME'] = env['USERPROFILE'] = bothHomeDir;
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env['NODE_PATH'] = path.join(testFixturesDir, 'node_path');
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runTest('$NODE_PATH', env);
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// Test module in local folder is loaded ahead of global folders.
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const localDir = path.join(testFixturesDir, 'local-pkg');
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env['HOME'] = env['USERPROFILE'] = bothHomeDir;
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env['NODE_PATH'] = path.join(testFixturesDir, 'node_path');
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const child = child_process.execFileSync(testExecPath,
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[ path.join(localDir, 'test.js') ],
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{ encoding: 'utf8', env: env });
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assert.strictEqual(child.trim(), 'local');
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}

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