Aubert Marvin
443 lines
15 KiB
JavaScript
443 lines
15 KiB
JavaScript
'use strict';
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var fs = require('fs');
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var path = require('path');
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var test = require('tape');
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var resolve = require('../sync');
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var fixturesDir = path.join(__dirname, 'list-exports', 'packages', 'tests', 'fixtures');
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var categories = [
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'broken',
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'broken-dir-slash-conditions',
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'conditions',
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'experimental',
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'pattern-trailers',
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'pattern-trailers+json-imports',
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'pattern-trailers-no-dir-slash',
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'pattern-trailers-no-dir-slash+json-imports',
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'patterns',
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'require-esm',
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'strips-types',
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'subpath-imports-slash'
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// 'pre-exports' is tested separately since it uses main/index resolution
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];
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// Fixtures that are symlinks pointing outside the fixture dir cause path confusion
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// ex-private is a private package whose expected files don't include exports data
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var skipFixtures = ['list-exports', 'ls-exports', 'ex-private'];
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function getFixtures() {
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return fs.readdirSync(fixturesDir).filter(function (name) {
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if (skipFixtures.indexOf(name) !== -1) {
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return false;
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}
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var stat = fs.statSync(path.join(fixturesDir, name));
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return stat.isDirectory();
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});
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}
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function loadExpected(fixtureName, category) {
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var expectedPath = path.join(fixturesDir, fixtureName, 'expected', category + '.json');
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if (!fs.existsSync(expectedPath)) {
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return null;
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}
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try {
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return JSON.parse(fs.readFileSync(expectedPath, 'utf8'));
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} catch (e) {
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return null;
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}
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}
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function loadProjectPkg(fixtureName) {
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var pkgPath = path.join(fixturesDir, fixtureName, 'project', 'package.json');
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try {
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return JSON.parse(fs.readFileSync(pkgPath, 'utf8'));
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} catch (e) {
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return null;
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}
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}
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test('exports resolution - exportsCategory option', function (t) {
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var fixtures = getFixtures();
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fixtures.forEach(function (fixtureName) {
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var projectPkg = loadProjectPkg(fixtureName);
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if (!projectPkg) {
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return;
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}
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var projectDir = path.join(fixturesDir, fixtureName, 'project');
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var pkgName = projectPkg.name;
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categories.forEach(function (category) {
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var expected = loadExpected(fixtureName, category);
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if (!expected || !expected.exports || !expected.exports[category]) {
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return;
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}
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var requireMap = expected.exports[category].require;
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if (!requireMap || typeof requireMap !== 'object') {
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return;
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}
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Object.keys(requireMap).forEach(function (subpath) {
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var expectedFile = requireMap[subpath];
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var specifier = subpath === '.' ? pkgName : pkgName + subpath.substring(1);
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t.test(fixtureName + ' / ' + category + ' / ' + subpath, function (st) {
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st.plan(1);
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try {
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var result = resolve(specifier, {
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basedir: __dirname,
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exportsCategory: category,
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extensions: ['.js', '.json'],
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packageIterator: function () {
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return [projectDir];
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}
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});
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var relativeResult = './' + path.relative(projectDir, result).split(path.sep).join('/');
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st.equal(relativeResult, expectedFile, specifier + ' resolves to ' + expectedFile);
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} catch (e) {
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st.fail('Unexpected error for ' + specifier + ': ' + e.message);
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}
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});
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});
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});
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});
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t.end();
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});
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test('exports resolution - pre-exports category uses main/index', function (t) {
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var fixtures = getFixtures();
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fixtures.forEach(function (fixtureName) {
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var projectPkg = loadProjectPkg(fixtureName);
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if (!projectPkg) {
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return;
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}
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var projectDir = path.join(fixturesDir, fixtureName, 'project');
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var pkgName = projectPkg.name;
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var expected = loadExpected(fixtureName, 'pre-exports');
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if (!expected || !expected.exports || !expected.exports['pre-exports']) {
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return;
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}
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var requireMap = expected.exports['pre-exports'].require;
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if (!requireMap || typeof requireMap !== 'object') {
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return;
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}
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// For pre-exports, only test the main entry point (.)
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var mainEntry = requireMap['.'];
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if (!mainEntry) {
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return;
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}
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t.test(fixtureName + ' / pre-exports / .', function (st) {
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st.plan(1);
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try {
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var result = resolve(pkgName, {
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basedir: __dirname,
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exportsCategory: 'pre-exports',
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extensions: ['.js', '.json'],
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packageIterator: function () {
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return [projectDir];
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}
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});
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var relativeResult = './' + path.relative(projectDir, result).split(path.sep).join('/');
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st.equal(relativeResult, mainEntry, pkgName + ' resolves to ' + mainEntry);
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} catch (e) {
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st.fail('Unexpected error for ' + pkgName + ': ' + e.message);
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}
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});
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});
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t.end();
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});
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test('exports resolution - mutual exclusivity of options', function (t) {
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t.test('exportsCategory and engines (string) are mutually exclusive', function (st) {
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st.plan(1);
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try {
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resolve('tape', {
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basedir: __dirname,
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exportsCategory: 'conditions',
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engines: '>= 14'
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});
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st.fail('should have thrown');
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} catch (e) {
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st.ok((/mutually exclusive/).test(e.message), 'throws with mutually exclusive message');
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}
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});
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t.test('exportsCategory and engines (true) are mutually exclusive', function (st) {
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st.plan(1);
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try {
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resolve('tape', {
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basedir: __dirname,
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exportsCategory: 'conditions',
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engines: true
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});
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st.fail('should have thrown');
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} catch (e) {
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st.ok((/mutually exclusive/).test(e.message), 'throws with mutually exclusive message');
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}
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});
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t.end();
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});
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test('exports resolution - invalid category', function (t) {
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t.plan(2);
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try {
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resolve('tape', {
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basedir: __dirname,
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exportsCategory: 'not-a-real-category'
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});
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t.fail('should have thrown');
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} catch (e) {
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t.equal(e.code, 'INVALID_EXPORTS_CATEGORY', 'has correct error code');
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t.ok((/Invalid exports category/).test(e.message), 'has correct error message');
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}
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});
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test('exports resolution - engines option', function (t) {
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var projectDir = path.join(fixturesDir, 'ex-exports-string', 'project');
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t.test('engines string maps to category', function (st) {
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st.plan(1);
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var result = resolve('ex-exports-string', {
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basedir: __dirname,
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engines: '>= 14',
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packageIterator: function () {
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return [projectDir];
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}
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});
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st.ok(result.indexOf('index.js') > -1, 'resolves to index.js');
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});
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t.test('engines: false is same as omitting', function (st) {
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st.plan(1);
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var result = resolve('tape', {
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basedir: __dirname,
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engines: false
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});
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st.ok(result.indexOf('tape') > -1, 'resolves without exports resolution');
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});
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t.test('engines: empty string throws', function (st) {
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st.plan(1);
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try {
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resolve('tape', {
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basedir: __dirname,
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engines: ''
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});
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st.fail('should have thrown');
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} catch (e) {
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st.ok((/must be.*true.*false.*non-empty string/i).test(e.message), 'throws with correct message');
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}
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});
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t.test('engines: number throws', function (st) {
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st.plan(1);
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try {
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resolve('tape', {
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basedir: __dirname,
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engines: 14
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});
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st.fail('should have thrown');
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} catch (e) {
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st.ok((/must be.*true.*false.*non-empty string/i).test(e.message), 'throws with correct message');
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}
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});
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t.test('engines: object throws', function (st) {
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st.plan(1);
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try {
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resolve('tape', {
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basedir: __dirname,
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engines: { node: '>= 14' }
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});
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st.fail('should have thrown');
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} catch (e) {
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st.ok((/must be.*true.*false.*non-empty string/i).test(e.message), 'throws with correct message');
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}
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});
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t.end();
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});
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test('exports resolution - conditions override', function (t) {
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var projectDir = path.join(fixturesDir, 'ex-conditions', 'project');
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t.test('default category conditions resolve to require.js', function (st) {
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st.plan(1);
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var result = resolve('ex-conditions/rdni', {
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basedir: __dirname,
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exportsCategory: 'conditions',
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packageIterator: function () {
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return [projectDir];
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}
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});
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st.ok(result.indexOf('require.js') > -1, 'resolves to require.js with default conditions');
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});
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t.test('conditions override to [default] resolves to default.js', function (st) {
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st.plan(1);
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var result = resolve('ex-conditions/rdni', {
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basedir: __dirname,
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exportsCategory: 'conditions',
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conditions: ['default'],
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packageIterator: function () {
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return [projectDir];
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}
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});
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st.ok(result.indexOf('default.js') > -1, 'resolves to default.js with conditions override');
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});
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t.test('conditions override to [node] resolves to node.js', function (st) {
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st.plan(1);
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var result = resolve('ex-conditions/rdni', {
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basedir: __dirname,
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exportsCategory: 'conditions',
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conditions: ['node'],
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packageIterator: function () {
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return [projectDir];
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}
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});
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st.ok(result.indexOf('node.js') > -1, 'resolves to node.js with conditions override');
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});
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t.end();
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});
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test('exports resolution - subpath not exported throws', function (t) {
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var projectDir = path.join(fixturesDir, 'ex-exports-string', 'project');
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t.plan(2);
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try {
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resolve('ex-exports-string/not-exported', {
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basedir: __dirname,
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exportsCategory: 'conditions',
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packageIterator: function () {
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return [projectDir];
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}
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});
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t.fail('should have thrown');
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} catch (e) {
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t.equal(e.code, 'ERR_PACKAGE_PATH_NOT_EXPORTED', 'has correct error code');
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t.ok((/not defined by "exports"/).test(e.message), 'has correct error message');
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}
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});
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test('existing resolution without exports options still works', function (t) {
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t.plan(1);
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var result = resolve('tape', { basedir: __dirname });
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t.ok(result.indexOf('tape') > -1, 'resolves tape without exports options');
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});
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test('all fixtures are tested', function (t) {
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var fixtures = getFixtures();
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var testedFixtures = [];
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fixtures.forEach(function (fixtureName) {
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var projectPkg = loadProjectPkg(fixtureName);
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if (!projectPkg) {
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t.fail('Fixture ' + fixtureName + ' has no loadable package.json');
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return;
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}
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var hasAnyTests = false;
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// Check if at least one category has expected results
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categories.forEach(function (category) {
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var expected = loadExpected(fixtureName, category);
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if (expected && expected.exports && expected.exports[category]) {
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var requireMap = expected.exports[category].require;
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if (requireMap && typeof requireMap === 'object' && Object.keys(requireMap).length > 0) {
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hasAnyTests = true;
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}
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}
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});
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// Also check pre-exports
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var preExpected = loadExpected(fixtureName, 'pre-exports');
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if (preExpected && preExpected.exports && preExpected.exports['pre-exports']) {
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var preRequireMap = preExpected.exports['pre-exports'].require;
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if (preRequireMap && preRequireMap['.']) {
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hasAnyTests = true;
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}
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}
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if (hasAnyTests) {
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testedFixtures.push(fixtureName);
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} else {
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t.fail('Fixture ' + fixtureName + ' has no testable entrypoints');
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}
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});
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t.ok(testedFixtures.length > 0, 'At least one fixture is tested');
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t.equal(testedFixtures.length, fixtures.length, 'All ' + fixtures.length + ' fixtures have testable entrypoints');
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t.end();
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});
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test('exports resolution - self-reference', function (t) {
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var projectDir = path.join(fixturesDir, 'ex-exports-string', 'project');
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t.test('self-reference resolves via exports when inside package', function (st) {
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st.plan(1);
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// basedir is inside the package, specifier is the package name
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var result = resolve('ex-exports-string', {
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basedir: projectDir,
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exportsCategory: 'conditions'
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});
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st.ok(result.indexOf('index.js') > -1, 'self-reference resolves to index.js via exports');
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});
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t.test('self-reference with subpath resolves via exports', function (st) {
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var conditionsDir = path.join(fixturesDir, 'ex-conditions', 'project');
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st.plan(1);
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var result = resolve('ex-conditions/rdni', {
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basedir: conditionsDir,
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exportsCategory: 'conditions'
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});
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st.ok(result.indexOf('require.js') > -1, 'self-reference subpath resolves correctly');
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});
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t.test('self-reference without exports falls back to main', function (st) {
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// Create a scenario where there's no exports field
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var mainDotlessDir = path.join(fixturesDir, 'ex-main-dotless', 'project');
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st.plan(1);
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try {
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var result = resolve('ex-main-dotless', {
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basedir: mainDotlessDir,
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exportsCategory: 'conditions'
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});
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st.ok(result.indexOf('main.js') > -1 || result.indexOf('index.js') > -1, 'self-reference without exports uses main/index');
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} catch (e) {
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// If it throws, that's also acceptable behavior (no exports means not exported)
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st.ok(true, 'self-reference without exports throws or resolves');
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}
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});
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t.test('self-reference does not cross node_modules boundary', function (st) {
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// basedir is inside node_modules, should NOT self-reference parent package
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var nodeModulesDir = path.join(__dirname, '..', 'node_modules', 'tape');
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st.plan(1);
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// Trying to resolve 'resolve' from inside node_modules/tape should NOT
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// self-reference the root resolve package - it should use normal resolution
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var result = resolve('resolve', {
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basedir: nodeModulesDir,
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exportsCategory: 'conditions'
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});
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// The result should be from node_modules, not from a self-reference
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// (self-reference would give us the current working directory's resolve)
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st.ok(result.indexOf('node_modules') > -1 || result === 'resolve', 'does not self-reference across node_modules');
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});
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t.end();
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});
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