challenge-algorithms-v2.0-u.../node_modules/resolve/test/symlinks.js

177 lines
6.4 KiB
JavaScript

var path = require('path');
var fs = require('fs');
var test = require('tape');
var map = require('array.prototype.map');
var resolve = require('../');
var symlinkDir = path.join(__dirname, 'resolver', 'symlinked', 'symlink');
var packageDir = path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'package');
var modADir = path.join(__dirname, 'symlinks', 'source', 'node_modules', 'mod-a');
var symlinkModADir = path.join(__dirname, 'symlinks', 'dest', 'node_modules', 'mod-a');
try {
fs.unlinkSync(symlinkDir);
} catch (err) {}
try {
fs.unlinkSync(packageDir);
} catch (err) {}
try {
fs.unlinkSync(modADir);
} catch (err) {}
try {
fs.unlinkSync(symlinkModADir);
} catch (err) {}
try {
fs.symlinkSync('./_/symlink_target', symlinkDir, 'dir');
} catch (err) {
// if fails then it is probably on Windows and lets try to create a junction
fs.symlinkSync(path.join(__dirname, 'resolver', 'symlinked', '_', 'symlink_target') + '\\', symlinkDir, 'junction');
}
try {
fs.symlinkSync('../../package', packageDir, 'dir');
} catch (err) {
// if fails then it is probably on Windows and lets try to create a junction
fs.symlinkSync(path.join(__dirname, '..', '..', 'package') + '\\', packageDir, 'junction');
}
try {
fs.symlinkSync('../../source/node_modules/mod-a', symlinkModADir, 'dir');
} catch (err) {
// if fails then it is probably on Windows and lets try to create a junction
fs.symlinkSync(path.join(__dirname, '..', '..', 'source', 'node_modules', 'mod-a') + '\\', symlinkModADir, 'junction');
}
test('symlink', function (t) {
t.plan(2);
resolve('foo', { basedir: symlinkDir, preserveSymlinks: false }, function (err, res, pkg) {
t.error(err);
t.equal(res, path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js'));
});
});
test('sync symlink when preserveSymlinks = true', function (t) {
t.plan(4);
resolve('foo', { basedir: symlinkDir }, function (err, res, pkg) {
t.ok(err, 'there is an error');
t.notOk(res, 'no result');
t.equal(err && err.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
t.equal(
err && err.message,
'Cannot find module \'foo\' from \'' + symlinkDir + '\'',
'can not find nonexistent module'
);
});
});
test('sync symlink', function (t) {
var start = new Date();
t.doesNotThrow(function () {
t.equal(
resolve.sync('foo', { basedir: symlinkDir, preserveSymlinks: false }),
path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js')
);
});
t.ok(new Date() - start < 50, 'resolve.sync timedout');
t.end();
});
test('sync symlink when preserveSymlinks = true', function (t) {
t.throws(function () {
resolve.sync('foo', { basedir: symlinkDir });
}, /Cannot find module 'foo'/);
t.end();
});
test('sync symlink from node_modules to other dir when preserveSymlinks = false', function (t) {
var basedir = path.join(__dirname, 'resolver', 'symlinked', '_');
var fn = resolve.sync('package', { basedir: basedir, preserveSymlinks: false });
t.equal(fn, path.resolve(__dirname, 'resolver/symlinked/package/bar.js'));
t.end();
});
test('async symlink from node_modules to other dir when preserveSymlinks = false', function (t) {
t.plan(2);
var basedir = path.join(__dirname, 'resolver', 'symlinked', '_');
resolve('package', { basedir: basedir, preserveSymlinks: false }, function (err, result) {
t.notOk(err, 'no error');
t.equal(result, path.resolve(__dirname, 'resolver/symlinked/package/bar.js'));
});
});
test('packageFilter', function (t) {
function relative(x) {
return path.relative(__dirname, x);
}
function testPackageFilter(preserveSymlinks) {
return function (st) {
st.plan('is 1.x' ? 3 : 5); // eslint-disable-line no-constant-condition
var destMain = 'symlinks/dest/node_modules/mod-a/index.js';
var destPkg = 'symlinks/dest/node_modules/mod-a/package.json';
var sourceMain = 'symlinks/source/node_modules/mod-a/index.js';
var sourcePkg = 'symlinks/source/node_modules/mod-a/package.json';
var destDir = path.join(__dirname, 'symlinks', 'dest');
/* eslint multiline-comment-style: 0 */
/* v2.x will restore these tests
var packageFilterPath = [];
var actualPath = resolve.sync('mod-a', {
basedir: destDir,
preserveSymlinks: preserveSymlinks,
packageFilter: function (pkg, pkgfile, dir) {
packageFilterPath.push(pkgfile);
}
});
st.equal(
relative(actualPath),
path.normalize(preserveSymlinks ? destMain : sourceMain),
'sync: actual path is correct'
);
st.deepEqual(
map(packageFilterPath, relative),
map(preserveSymlinks ? [destPkg, destPkg] : [sourcePkg, sourcePkg], path.normalize),
'sync: packageFilter pkgfile arg is correct'
);
*/
var asyncPackageFilterPath = [];
resolve(
'mod-a',
{
basedir: destDir,
preserveSymlinks: preserveSymlinks,
packageFilter: function (pkg, pkgfile) {
asyncPackageFilterPath.push(pkgfile);
}
},
function (err, actualPath) {
st.error(err, 'no error');
st.equal(
relative(actualPath),
path.normalize(preserveSymlinks ? destMain : sourceMain),
'async: actual path is correct'
);
st.deepEqual(
map(asyncPackageFilterPath, relative),
map(
preserveSymlinks ? [destPkg, destPkg, destPkg] : [sourcePkg, sourcePkg, sourcePkg],
path.normalize
),
'async: packageFilter pkgfile arg is correct'
);
}
);
};
}
t.test('preserveSymlinks: false', testPackageFilter(false));
t.test('preserveSymlinks: true', testPackageFilter(true));
t.end();
});