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nodejs/test/sequential/test-module-loading.js
isaacs 3e1b1dd4a9 Remove excessive copyright/license boilerplate
The copyright and license notice is already in the LICENSE file.  There
is no justifiable reason to also require that it be included in every
file, since the individual files are not individually distributed except
as part of the entire package.
2015-01-12 15:30:28 -08:00

285 lines
9.1 KiB
JavaScript

var common = require('../common');
var assert = require('assert');
var path = require('path');
var fs = require('fs');
common.debug('load test-module-loading.js');
// assert that this is the main module.
assert.equal(require.main.id, '.', 'main module should have id of \'.\'');
assert.equal(require.main, module, 'require.main should === module');
assert.equal(process.mainModule, module,
'process.mainModule should === module');
// assert that it's *not* the main module in the required module.
require('../fixtures/not-main-module.js');
// require a file with a request that includes the extension
var a_js = require('../fixtures/a.js');
assert.equal(42, a_js.number);
// require a file without any extensions
var foo_no_ext = require('../fixtures/foo');
assert.equal('ok', foo_no_ext.foo);
var a = require('../fixtures/a');
var c = require('../fixtures/b/c');
var d = require('../fixtures/b/d');
var d2 = require('../fixtures/b/d');
// Absolute
var d3 = require(path.join(__dirname, '../fixtures/b/d'));
// Relative
var d4 = require('../fixtures/b/d');
assert.equal(false, false, 'testing the test program.');
assert.equal(true, common.indirectInstanceOf(a.A, Function));
assert.equal('A', a.A());
assert.equal(true, common.indirectInstanceOf(a.C, Function));
assert.equal('C', a.C());
assert.equal(true, common.indirectInstanceOf(a.D, Function));
assert.equal('D', a.D());
assert.equal(true, common.indirectInstanceOf(d.D, Function));
assert.equal('D', d.D());
assert.equal(true, common.indirectInstanceOf(d2.D, Function));
assert.equal('D', d2.D());
assert.equal(true, common.indirectInstanceOf(d3.D, Function));
assert.equal('D', d3.D());
assert.equal(true, common.indirectInstanceOf(d4.D, Function));
assert.equal('D', d4.D());
assert.ok((new a.SomeClass) instanceof c.SomeClass);
common.debug('test index.js modules ids and relative loading');
var one = require('../fixtures/nested-index/one'),
two = require('../fixtures/nested-index/two');
assert.notEqual(one.hello, two.hello);
common.debug('test index.js in a folder with a trailing slash');
var three = require('../fixtures/nested-index/three'),
threeFolder = require('../fixtures/nested-index/three/'),
threeIndex = require('../fixtures/nested-index/three/index.js');
assert.equal(threeFolder, threeIndex);
assert.notEqual(threeFolder, three);
common.debug('test package.json require() loading');
assert.equal(require('../fixtures/packages/main').ok, 'ok',
'Failed loading package');
assert.equal(require('../fixtures/packages/main-index').ok, 'ok',
'Failed loading package with index.js in main subdir');
common.debug('test cycles containing a .. path');
var root = require('../fixtures/cycles/root'),
foo = require('../fixtures/cycles/folder/foo');
assert.equal(root.foo, foo);
assert.equal(root.sayHello(), root.hello);
common.debug('test node_modules folders');
// asserts are in the fixtures files themselves,
// since they depend on the folder structure.
require('../fixtures/node_modules/foo');
common.debug('test name clashes');
// this one exists and should import the local module
var my_path = require('../fixtures/path');
assert.ok(common.indirectInstanceOf(my_path.path_func, Function));
// this one does not exist and should throw
assert.throws(function() { require('./utils')});
var errorThrown = false;
try {
require('../fixtures/throws_error');
} catch (e) {
errorThrown = true;
assert.equal('blah', e.message);
}
assert.equal(require('path').dirname(__filename), __dirname);
common.debug('load custom file types with extensions');
require.extensions['.test'] = function(module, filename) {
var content = fs.readFileSync(filename).toString();
assert.equal('this is custom source\n', content);
content = content.replace('this is custom source',
'exports.test = \'passed\'');
module._compile(content, filename);
};
assert.equal(require('../fixtures/registerExt').test, 'passed');
// unknown extension, load as .js
assert.equal(require('../fixtures/registerExt.hello.world').test, 'passed');
common.debug('load custom file types that return non-strings');
require.extensions['.test'] = function(module, filename) {
module.exports = {
custom: 'passed'
};
};
assert.equal(require('../fixtures/registerExt2').custom, 'passed');
assert.equal(require('../fixtures/foo').foo, 'ok',
'require module with no extension');
assert.throws(function() {
require.paths;
}, /removed/, 'Accessing require.paths should throw.');
// Should not attempt to load a directory
try {
require('../fixtures/empty');
} catch (err) {
assert.equal(err.message, 'Cannot find module \'../fixtures/empty\'');
}
// Check load order is as expected
common.debug('load order');
var loadOrder = '../fixtures/module-load-order/',
msg = 'Load order incorrect.';
require.extensions['.reg'] = require.extensions['.js'];
require.extensions['.reg2'] = require.extensions['.js'];
assert.equal(require(loadOrder + 'file1').file1, 'file1', msg);
assert.equal(require(loadOrder + 'file2').file2, 'file2.js', msg);
try {
require(loadOrder + 'file3');
} catch (e) {
// Not a real .node module, but we know we require'd the right thing.
assert.ok(e.message.replace(/\\/g, '/').match(/file3\.node/));
}
assert.equal(require(loadOrder + 'file4').file4, 'file4.reg', msg);
assert.equal(require(loadOrder + 'file5').file5, 'file5.reg2', msg);
assert.equal(require(loadOrder + 'file6').file6, 'file6/index.js', msg);
try {
require(loadOrder + 'file7');
} catch (e) {
assert.ok(e.message.replace(/\\/g, '/').match(/file7\/index\.node/));
}
assert.equal(require(loadOrder + 'file8').file8, 'file8/index.reg', msg);
assert.equal(require(loadOrder + 'file9').file9, 'file9/index.reg2', msg);
// make sure that module.require() is the same as
// doing require() inside of that module.
var parent = require('../fixtures/module-require/parent/');
var child = require('../fixtures/module-require/child/');
assert.equal(child.loaded, parent.loaded);
// #1357 Loading JSON files with require()
var json = require('../fixtures/packages/main/package.json');
assert.deepEqual(json, {
name: 'package-name',
version: '1.2.3',
main: 'package-main-module'
});
// now verify that module.children contains all the different
// modules that we've required, and that all of them contain
// the appropriate children, and so on.
var children = module.children.reduce(function red(set, child) {
var id = path.relative(path.dirname(__dirname), child.id)
id = id.replace(/\\/g, '/');
set[id] = child.children.reduce(red, {});
return set;
}, {});
assert.deepEqual(children, {
'common.js': {},
'fixtures/not-main-module.js': {},
'fixtures/a.js': {
'fixtures/b/c.js': {
'fixtures/b/d.js': {},
'fixtures/b/package/index.js': {}
}
},
'fixtures/foo': {},
'fixtures/nested-index/one/index.js': {
'fixtures/nested-index/one/hello.js': {}
},
'fixtures/nested-index/two/index.js': {
'fixtures/nested-index/two/hello.js': {}
},
'fixtures/nested-index/three.js': {},
'fixtures/nested-index/three/index.js': {},
'fixtures/packages/main/package-main-module.js': {},
'fixtures/packages/main-index/package-main-module/index.js': {},
'fixtures/cycles/root.js': {
'fixtures/cycles/folder/foo.js': {}
},
'fixtures/node_modules/foo.js': {
'fixtures/node_modules/baz/index.js': {
'fixtures/node_modules/bar.js': {},
'fixtures/node_modules/baz/node_modules/asdf.js': {}
}
},
'fixtures/path.js': {},
'fixtures/throws_error.js': {},
'fixtures/registerExt.test': {},
'fixtures/registerExt.hello.world': {},
'fixtures/registerExt2.test': {},
'fixtures/empty.js': {},
'fixtures/module-load-order/file1': {},
'fixtures/module-load-order/file2.js': {},
'fixtures/module-load-order/file3.node': {},
'fixtures/module-load-order/file4.reg': {},
'fixtures/module-load-order/file5.reg2': {},
'fixtures/module-load-order/file6/index.js': {},
'fixtures/module-load-order/file7/index.node': {},
'fixtures/module-load-order/file8/index.reg': {},
'fixtures/module-load-order/file9/index.reg2': {},
'fixtures/module-require/parent/index.js': {
'fixtures/module-require/child/index.js': {
'fixtures/module-require/child/node_modules/target.js': {}
}
},
'fixtures/packages/main/package.json': {}
});
// require() must take string, and must be truthy
assert.throws(function() {
console.error('require non-string');
require({ foo: 'bar' });
}, 'path must be a string');
assert.throws(function() {
console.error('require empty string');
require('');
}, 'missing path');
process.on('exit', function() {
assert.ok(common.indirectInstanceOf(a.A, Function));
assert.equal('A done', a.A());
assert.ok(common.indirectInstanceOf(a.C, Function));
assert.equal('C done', a.C());
assert.ok(common.indirectInstanceOf(a.D, Function));
assert.equal('D done', a.D());
assert.ok(common.indirectInstanceOf(d.D, Function));
assert.equal('D done', d.D());
assert.ok(common.indirectInstanceOf(d2.D, Function));
assert.equal('D done', d2.D());
assert.equal(true, errorThrown);
console.log('exit');
});
// #1440 Loading files with a byte order marker.
assert.equal(42, require('../fixtures/utf8-bom.js'));
assert.equal(42, require('../fixtures/utf8-bom.json'));