Skip symlink tests on Windows

... where there is no symlinking.

test/_common.py

@@ -53,6 +53,9 @@ log.setLevel(logging.DEBUG)
 # Dummy item creation.
 _item_ident = 0
 
+# OS feature test.
+HAVE_SYMLINK = hasattr(os, 'symlink')
+
 
 def item(lib=None):
     global _item_ident

test/test_files.py

@@ -124,16 +124,19 @@ class MoveTest(_common.TestCase):
         self.assertEqual(os.path.dirname(self.i.path),
                          os.path.dirname(dest))
 
+    @unittest.skipUnless(_common.HAVE_SYMLINK, "need symlinks")
     def test_link_arrives(self):
         self.i.move(link=True)
         self.assertExists(self.dest)
         self.assertTrue(os.path.islink(self.dest))
         self.assertEqual(os.readlink(self.dest), self.path)
 
+    @unittest.skipUnless(_common.HAVE_SYMLINK, "need symlinks")
     def test_link_does_not_depart(self):
         self.i.move(link=True)
         self.assertExists(self.path)
 
+    @unittest.skipUnless(_common.HAVE_SYMLINK, "need symlinks")
     def test_link_changes_path(self):
         self.i.move(link=True)
         self.assertEqual(self.i.path, util.normpath(self.dest))

test/test_importer.py

@@ -329,6 +329,7 @@ class NonAutotaggedImportTest(_common.TestCase, ImportHelper):
         self.importer.run()
         self.assertNotExists(os.path.join(self.import_dir, 'the_album'))
 
+    @unittest.skipUnless(_common.HAVE_SYMLINK, "need symlinks")
     def test_import_link_arrives(self):
         config['import']['link'] = True
         self.importer.run()