fix(core): sync() return should be unchrooted

Resolves #601

Author: ceache

kazoo/client.py

@@ -826,7 +826,8 @@ def unchroot(self, path):
         """Strip the chroot if applicable from the path."""
         if not self.chroot:
             return path
-
+        if self.chroot == path:
+            return "/"
         if path.startswith(self.chroot):
             return path[len(self.chroot):]
         else:
@@ -839,7 +840,20 @@ def sync_async(self, path):
 
         """
         async_result = self.handler.async_result()
-        self._call(Sync(_prefix_root(self.chroot, path)), async_result)
+
+        @wrap(async_result)
+        def _sync_completion(result):
+            return self.unchroot(result.get())
+
+        def _do_sync():
+            result = self.handler.async_result()
+            self._call(
+                Sync(_prefix_root(self.chroot, path)),
+                result
+            )
+            result.rawlink(_sync_completion)
+
+        _do_sync()
         return async_result
 
     def sync(self, path):

kazoo/tests/test_client.py

@@ -190,8 +190,8 @@ def test_connect_auth(self):
             client.close()
 
     def test_unicode_auth(self):
-        username = u("xe4/\hm")
-        password = u("/\xe4hm")
+        username = u(r"xe4/\hm")
+        password = u(r"/\xe4hm")
         digest_auth = "%s:%s" % (username, password)
         acl = self._makeAuth(username, password, all=True)
 
@@ -774,10 +774,11 @@ def test_ensure_path(self):
         client.ensure_path("/1/2/3/4")
         assert client.exists("/1/2/3/4")
 
-    @pytest.mark.skip("BUG: sync() call is not chroot'd")
     def test_sync(self):
         client = self.client
-        assert client.sync('/') == '/'
+        assert client.sync("/") == "/"
+        # Albeit surprising, you can sync anything, even what does not exist.
+        assert client.sync("/not_there") == "/not_there"
 
     def test_exists(self):
         nodepath = "/" + uuid.uuid4().hex
@@ -1366,9 +1367,11 @@ def test_create(self):
 
     def test_unchroot(self):
         client = self._get_nonchroot_client()
-        client.chroot = '/a'
-        assert client.unchroot('/a/b') == '/b'
-        assert client.unchroot('/b/c') == '/b/c'
+        client.chroot = "/a"
+        # Unchroot'ing the chroot path should return "/"
+        assert client.unchroot("/a") == "/"
+        assert client.unchroot("/a/b") == "/b"
+        assert client.unchroot("/b/c") == "/b/c"
 
 
 class TestReconfig(KazooTestCase):