Fix LocalFS to raise error if connecting to non-existent directory.

SftpFS already does this. Consistency here is good.

3 files changed, 6 insertions, 0 deletions

diff --git a/obnamlib/store_tests.py b/obnamlib/store_tests.py
index a2e1fe9a..f880383d 100644
--- a/obnamlib/store_tests.py
+++ b/obnamlib/store_tests.py
@@ -595,6 +595,7 @@ class StoreGenspecTests(unittest.TestCase):
         self.tempdir = tempfile.mkdtemp()
 
         storedir = os.path.join(self.tempdir, 'store')
+        os.mkdir(storedir)
         fs = obnamlib.LocalFS(storedir)
         self.store = obnamlib.Store(fs, obnamlib.DEFAULT_NODE_SIZE,
                                     obnamlib.DEFAULT_UPLOAD_QUEUE_SIZE,
diff --git a/obnamlib/vfs.py b/obnamlib/vfs.py
index 6933951d..6f99d8fe 100644
--- a/obnamlib/vfs.py
+++ b/obnamlib/vfs.py
@@ -280,6 +280,9 @@ class VfsTests(object): # pragma: no cover
         self.fs.reinit(self.fs.baseurl)
         self.assertEqual(self.fs.getcwd(), self.basepath)
 
+    def test_reinit_to_nonexistent_filename_raises_OSError(self):
+        self.assertRaises(OSError, self.fs.reinit, '/thisdoesnotexist')
+
     def test_getcwd_returns_dirname(self):
         self.assertEqual(self.fs.getcwd(), self.basepath)
 
diff --git a/obnamlib/vfs_local.py b/obnamlib/vfs_local.py
index 13726499..b9b039bb 100644
--- a/obnamlib/vfs_local.py
+++ b/obnamlib/vfs_local.py
@@ -55,6 +55,8 @@ class LocalFS(obnamlib.VirtualFileSystem):
         # perception of current working directory. This also benefits
         # unit tests. To do this, we store the baseurl as the cwd.
         self.cwd = os.path.abspath(baseurl)
+        if not self.isdir('.'):
+            raise OSError(errno.ENOENT, self.cwd)
 
     def close(self):
         logging.info('VFS %s closing down; bytes_read=%d bytes_written=%d' %