1 var test = require('tape');
2 var path = require('path');
3 var parse = path.parse || require('path-parse');
4 var keys = require('object-keys');
6 var nodeModulesPaths = require('../lib/node-modules-paths');
8 var verifyDirs = function verifyDirs(t, start, dirs, moduleDirectories, paths) {
9 moduleDirectories = [].concat(moduleDirectories || 'node_modules');
10 if (!paths) { paths = []; }
12 var foundModuleDirs = {};
15 for (var i = 0; i < dirs.length; ++i) {
16 var parsed = parse(dirs[i]);
17 if (!foundModuleDirs[parsed.base]) { foundModuleDirs[parsed.base] = 0; }
18 foundModuleDirs[parsed.base] += 1;
19 parsedDirs[parsed.dir] = true;
20 uniqueDirs[dirs[i]] = true;
22 t.equal(keys(parsedDirs).length >= start.split(path.sep).length, true, 'there are >= dirs than "start" has');
23 var foundModuleDirNames = keys(foundModuleDirs);
24 t.deepEqual(foundModuleDirNames, moduleDirectories.concat(paths), 'all desired module dirs were found');
25 t.equal(keys(uniqueDirs).length, dirs.length, 'all dirs provided were unique');
28 for (var j = 0; j < foundModuleDirNames.length; ++j) {
29 counts[foundModuleDirs[j]] = true;
31 t.equal(keys(counts).length, 1, 'all found module directories had the same count');
34 test('node-modules-paths', function (t) {
35 t.test('no options', function (t) {
36 var start = path.join(__dirname, 'resolver');
37 var dirs = nodeModulesPaths(start);
39 verifyDirs(t, start, dirs);
44 t.test('empty options', function (t) {
45 var start = path.join(__dirname, 'resolver');
46 var dirs = nodeModulesPaths(start, {});
48 verifyDirs(t, start, dirs);
53 t.test('with paths option', function (t) {
54 var start = path.join(__dirname, 'resolver');
55 var paths = ['a', 'b'];
56 var dirs = nodeModulesPaths(start, { paths: paths });
58 verifyDirs(t, start, dirs, null, paths);
63 t.test('with moduleDirectory option', function (t) {
64 var start = path.join(__dirname, 'resolver');
65 var moduleDirectory = 'not node modules';
66 var dirs = nodeModulesPaths(start, { moduleDirectory: moduleDirectory });
68 verifyDirs(t, start, dirs, moduleDirectory);
73 t.test('with 1 moduleDirectory and paths options', function (t) {
74 var start = path.join(__dirname, 'resolver');
75 var paths = ['a', 'b'];
76 var moduleDirectory = 'not node modules';
77 var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectory });
79 verifyDirs(t, start, dirs, moduleDirectory, paths);
84 t.test('with 1+ moduleDirectory and paths options', function (t) {
85 var start = path.join(__dirname, 'resolver');
86 var paths = ['a', 'b'];
87 var moduleDirectories = ['not node modules', 'other modules'];
88 var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectories });
90 verifyDirs(t, start, dirs, moduleDirectories, paths);