Normalize all paths to be absolute; first try at persistent filemap

tests/fake_filesystem.py

@@ -32,6 +32,12 @@ def write(self, value):
 
 
 class FakeFilesystem(dict):
+    def __init__(self, d=None):
+        # Replicate input dictionary using our custom __setitem__
+        d = d or {}
+        for key, value in d.iteritems():
+            self[key] = value
+
     def __setitem__(self, key, value):
         if isinstance(value, StringTypes) or value is None:
             value = FakeFile(value, key)

tests/server.py

@@ -57,13 +57,13 @@
 tests"""
 }
 FILES = {
-    'file.txt': 'contents',
-    'file2.txt': 'contents2',
-    'folder/file3.txt': 'contents3',
-    'empty_folder': None,
-    'tree/file1.txt': 'x',
-    'tree/file2.txt': 'y',
-    'tree/subfolder/file3.txt': 'z',
+    '/file.txt': 'contents',
+    '/file2.txt': 'contents2',
+    '/folder/file3.txt': 'contents3',
+    '/empty_folder': None,
+    '/tree/file1.txt': 'x',
+    '/tree/file2.txt': 'y',
+    '/tree/subfolder/file3.txt': 'z',
     '/etc/apache2/apache2.conf': 'Include other.conf'
 }
 PASSWORDS = {
@@ -209,7 +209,7 @@ def missing_folders(paths):
 class FakeSFTPServer(ssh.SFTPServerInterface):
     def __init__(self, server, *args, **kwargs):
         self.server = server
-        files = copy.deepcopy(self.server.files)
+        files = self.server.files
         # Expand such that omitted, implied folders get added explicitly
         for folder in missing_folders(files.keys()):
             files[folder] = None

tests/test_operations.py

@@ -358,8 +358,8 @@ def test_put_file_to_existing_directory(self):
         local2 = self.path('foo2.txt')
         with open(local, 'w') as fd:
             fd.write("foo!")
-        put(local, '')
-        get('foo.txt', local2)
+        put(local, '/')
+        get('/foo.txt', local2)
         eq_contents(local2, "foo!")