add hw2

node_modules/resolve/test/home_paths_sync.js

@@ -0,0 +1,114 @@
+'use strict';
+
+var fs = require('fs');
+var homedir = require('../lib/homedir');
+var path = require('path');
+
+var test = require('tape');
+var mkdirp = require('mkdirp');
+var rimraf = require('rimraf');
+var mv = require('mv');
+var copyDir = require('copy-dir');
+var tmp = require('tmp');
+
+var HOME = homedir();
+
+var hnm = path.join(HOME, '.node_modules');
+var hnl = path.join(HOME, '.node_libraries');
+
+var resolve = require('../sync');
+
+function makeDir(t, dir, cb) {
+    mkdirp(dir, function (err) {
+        if (err) {
+            cb(err);
+        } else {
+            t.teardown(function cleanup() {
+                rimraf.sync(dir);
+            });
+            cb();
+        }
+    });
+}
+
+function makeTempDir(t, dir, cb) {
+    if (fs.existsSync(dir)) {
+        var tmpResult = tmp.dirSync();
+        t.teardown(tmpResult.removeCallback);
+        var backup = path.join(tmpResult.name, path.basename(dir));
+        mv(dir, backup, function (err) {
+            if (err) {
+                cb(err);
+            } else {
+                t.teardown(function () {
+                    mv(backup, dir, cb);
+                });
+                makeDir(t, dir, cb);
+            }
+        });
+    } else {
+        makeDir(t, dir, cb);
+    }
+}
+
+test('homedir module paths', function (t) {
+    t.plan(7);
+
+    makeTempDir(t, hnm, function (err) {
+        t.error(err, 'no error with HNM temp dir');
+        if (err) {
+            return t.end();
+        }
+
+        var bazHNMDir = path.join(hnm, 'baz');
+        var dotMainDir = path.join(hnm, 'dot_main');
+        copyDir.sync(path.join(__dirname, 'resolver/baz'), bazHNMDir);
+        copyDir.sync(path.join(__dirname, 'resolver/dot_main'), dotMainDir);
+
+        var bazHNMmain = path.join(bazHNMDir, 'quux.js');
+        t.equal(require.resolve('baz'), bazHNMmain, 'sanity check: require.resolve finds HNM `baz`');
+        var dotMainMain = path.join(dotMainDir, 'index.js');
+        t.equal(require.resolve('dot_main'), dotMainMain, 'sanity check: require.resolve finds `dot_main`');
+
+        makeTempDir(t, hnl, function (err) {
+            t.error(err, 'no error with HNL temp dir');
+            if (err) {
+                return t.end();
+            }
+            var bazHNLDir = path.join(hnl, 'baz');
+            copyDir.sync(path.join(__dirname, 'resolver/baz'), bazHNLDir);
+
+            var dotSlashMainDir = path.join(hnl, 'dot_slash_main');
+            var dotSlashMainMain = path.join(dotSlashMainDir, 'index.js');
+            copyDir.sync(path.join(__dirname, 'resolver/dot_slash_main'), dotSlashMainDir);
+
+            t.equal(require.resolve('baz'), bazHNMmain, 'sanity check: require.resolve finds HNM `baz`');
+            t.equal(require.resolve('dot_slash_main'), dotSlashMainMain, 'sanity check: require.resolve finds HNL `dot_slash_main`');
+
+            t.test('with temp dirs', function (st) {
+                st.plan(3);
+
+                st.test('just in `$HOME/.node_modules`', function (s2t) {
+                    s2t.plan(1);
+
+                    var res = resolve('dot_main');
+                    s2t.equal(res, dotMainMain, '`dot_main` resolves in `$HOME/.node_modules`');
+                });
+
+                st.test('just in `$HOME/.node_libraries`', function (s2t) {
+                    s2t.plan(1);
+
+                    var res = resolve('dot_slash_main');
+                    s2t.equal(res, dotSlashMainMain, '`dot_slash_main` resolves in `$HOME/.node_libraries`');
+                });
+
+                st.test('in `$HOME/.node_libraries` and `$HOME/.node_modules`', function (s2t) {
+                    s2t.plan(1);
+
+                    var res = resolve('baz');
+                    s2t.equal(res, bazHNMmain, '`baz` resolves in `$HOME/.node_modules` when in both');
+                });
+            });
+        });
+    });
+});