make simple\test-fs-symlink.js work on windows

Author: Igor Zinkovsky

test/simple/test-fs-symlink.js

@@ -19,42 +19,76 @@
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-// libuv-broken
-
-
 var common = require('../common');
 var assert = require('assert');
 var path = require('path');
 var fs = require('fs');
+var exec = require('child_process').exec;
 var completed = 0;
+var expected_tests = 2;
+
+var is_windows = process.platform === 'win32';
+
+var runtest = function(skip_symlinks) {
+  if (!skip_symlinks) {
+    // test creating and reading symbolic link
+    var linkData = path.join(common.fixturesDir, '/cycles/root.js');
+    var linkPath = path.join(common.tmpDir, 'symlink1.js');
+
+    // Delete previously created link
+    try {
+      fs.unlinkSync(linkPath);
+    } catch(e)
+    {}
+
+    fs.symlink(linkData, linkPath, function(err) {
+      if (err) throw err;
+      console.log('symlink done');
+      // todo: fs.lstat?
+      fs.readlink(linkPath, function(err, destination) {
+        if (err) throw err;
+        assert.equal(destination, linkData);
+        completed++;
+      });
+    });
+  }
 
-// test creating and reading symbolic link
-var linkData = path.join(common.fixturesDir, '/cycles/root.js');
-var linkPath = path.join(common.tmpDir, 'symlink1.js');
-fs.symlink(linkData, linkPath, function(err) {
-  if (err) throw err;
-  console.log('symlink done');
-  // todo: fs.lstat?
-  fs.readlink(linkPath, function(err, destination) {
+  // test creating and reading hard link
+  var srcPath = path.join(common.fixturesDir, 'cycles', 'root.js');
+  var dstPath = path.join(common.tmpDir, 'link1.js');
+
+  // Delete previously created link
+  try {
+    fs.unlinkSync(dstPath);
+  } catch(e)
+  {}
+
+  fs.link(srcPath, dstPath, function(err) {
     if (err) throw err;
-    assert.equal(destination, linkData);
+    console.log('hard link done');
+    var srcContent = fs.readFileSync(srcPath, 'utf8');
+    var dstContent = fs.readFileSync(dstPath, 'utf8');
+    assert.equal(srcContent, dstContent);
     completed++;
   });
-});
+}
 
-// test creating and reading hard link
-var srcPath = path.join(common.fixturesDir, 'cycles', 'root.js');
-var dstPath = path.join(common.tmpDir, 'link1.js');
-fs.link(srcPath, dstPath, function(err) {
-  if (err) throw err;
-  console.log('hard link done');
-  var srcContent = fs.readFileSync(srcPath, 'utf8');
-  var dstContent = fs.readFileSync(dstPath, 'utf8');
-  assert.equal(srcContent, dstContent);
-  completed++;
-});
+if (is_windows) {
+  // On Windows, creating symlinks requires admin privileges.
+  // We'll only try to run symlink test if we have enough privileges.
+  exec("whoami /priv", function(err, o) {
+    if (err || o.indexOf('SeCreateSymbolicLinkPrivilege') == -1) {
+      expected_tests = 1;
+      runtest(true);
+    } else {
+      runtest(false);
+    }
+  });
+} else {
+  runtest(false);
+}
 
 process.on('exit', function() {
-  assert.equal(completed, 2);
+  assert.equal(completed, expected_tests);
 });