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// Flags: --experimental-modules
import { mustCall } from '../common/index.mjs';
import { ok, deepStrictEqual, strictEqual } from 'assert';
import { requireFixture, importFixture } from '../fixtures/pkgexports.mjs';
[requireFixture, importFixture].forEach((loadFixture) => {
const isRequire = loadFixture === requireFixture;
const validSpecifiers = new Map([
// A simple mapping of a path.
['pkgexports/valid-cjs', { default: 'asdf' }],
// A directory mapping, pointing to the package root.
['pkgexports/sub/asdf.js', { default: 'asdf' }],
// A mapping pointing to a file that needs special encoding (%20) in URLs.
['pkgexports/space', { default: 'encoded path' }],
// Verifying that normal packages still work with exports turned on.
isRequire ? ['baz/index', { default: 'eye catcher' }] : [null],
]);
for (const [validSpecifier, expected] of validSpecifiers) {
if (validSpecifier === null) continue;
loadFixture(validSpecifier)
.then(mustCall((actual) => {
deepStrictEqual({ ...actual }, expected);
}));
}
// There's no such export - so there's nothing to do.
loadFixture('pkgexports/missing').catch(mustCall((err) => {
strictEqual(err.code, 'ERR_PATH_NOT_EXPORTED');
assertStartsWith(err.message, 'Package exports');
assertIncludes(err.message, 'do not define a \'./missing\' subpath');
}));
// The file exists but isn't exported. The exports is a number which counts
// as a non-null value without any properties, just like `{}`.
loadFixture('pkgexports-number/hidden.js').catch(mustCall((err) => {
strictEqual(err.code, 'ERR_PATH_NOT_EXPORTED');
assertStartsWith(err.message, 'Package exports');
assertIncludes(err.message, 'do not define a \'./hidden.js\' subpath');
}));
// There's no main field so we won't find anything when importing the name.
// The fact that "." is mapped is ignored, it's not a valid main config.
loadFixture('pkgexports').catch(mustCall((err) => {
if (isRequire) {
strictEqual(err.code, 'MODULE_NOT_FOUND');
assertStartsWith(err.message, 'Cannot find module \'pkgexports\'');
} else {
strictEqual(err.code, 'ERR_MODULE_NOT_FOUND');
assertStartsWith(err.message, 'Cannot find main entry point');
}
}));
// Even though 'pkgexports/sub/asdf.js' works, alternate "path-like" variants
// do not to prevent confusion and accidental loopholes.
loadFixture('pkgexports/sub/./../asdf.js').catch(mustCall((err) => {
strictEqual(err.code, 'ERR_PATH_NOT_EXPORTED');
assertStartsWith(err.message, 'Package exports');
assertIncludes(err.message,
'do not define a \'./sub/./../asdf.js\' subpath');
}));
// Covering out bases - not a file is still not a file after dir mapping.
loadFixture('pkgexports/sub/not-a-file.js').catch(mustCall((err) => {
if (isRequire) {
strictEqual(err.code, 'MODULE_NOT_FOUND');
assertStartsWith(err.message,
'Cannot find module \'pkgexports/sub/not-a-file.js\'');
} else {
strictEqual(err.code, 'ERR_MODULE_NOT_FOUND');
// ESM currently returns a full file path
assertStartsWith(err.message, 'Cannot find module');
}
}));
});
function assertStartsWith(actual, expected) {
const start = actual.toString().substr(0, expected.length);
strictEqual(start, expected);
}
function assertIncludes(actual, expected) {
ok(actual.toString().indexOf(expected),
`${JSON.stringify(actual)} includes ${JSON.stringify(expected)}`);
}
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