From 860cf7b9743744c9d21796b227cf21d684fb5519 Mon Sep 17 00:00:00 2001
From: Takafumi Arakaki <aka.tkf@gmail.com>
Date: Thu, 14 Mar 2013 21:33:36 +0100
Subject: [PATCH 1/3] Add test_modulepickling_change_cache_dir

---
 test/test_cache.py | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 test/test_cache.py

diff --git a/test/test_cache.py b/test/test_cache.py
new file mode 100644
index 00000000..9f845fc2
--- /dev/null
+++ b/test/test_cache.py
@@ -0,0 +1,30 @@
+from jedi import settings
+from jedi.cache import ParserCacheItem, _ModulePickling
+
+
+ModulePickling = _ModulePickling()
+
+
+def test_modulepickling_change_cache_dir(monkeypatch, tmpdir):
+    """
+    ModulePickling should not save old cache when cache_directory is changed.
+
+    See: `#168 <https://github.com/davidhalter/jedi/pull/168>`_
+    """
+    dir_1 = str(tmpdir.mkdir('first'))
+    dir_2 = str(tmpdir.mkdir('second'))
+
+    item_1 = ParserCacheItem('fake parser 1')
+    item_2 = ParserCacheItem('fake parser 2')
+    path_1 = 'fake path 1'
+    path_2 = 'fake path 2'
+
+    monkeypatch.setattr(settings, 'cache_directory', dir_1)
+    ModulePickling.save_module(path_1, item_1)
+    cached = ModulePickling.load_module(path_1, item_1.change_time - 1)
+    assert cached == item_1.parser
+
+    monkeypatch.setattr(settings, 'cache_directory', dir_2)
+    ModulePickling.save_module(path_2, item_2)
+    cached = ModulePickling.load_module(path_1, item_1.change_time - 1)
+    assert cached is None

From edc7148320454ea3ef1e7d5a2c42c132abf39234 Mon Sep 17 00:00:00 2001
From: Takafumi Arakaki <aka.tkf@gmail.com>
Date: Thu, 14 Mar 2013 22:15:34 +0100
Subject: [PATCH 2/3] Fix test_modulepickling_change_cache_dir failure

---
 jedi/cache.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/jedi/cache.py b/jedi/cache.py
index e60583f4..84d9ede7 100644
--- a/jedi/cache.py
+++ b/jedi/cache.py
@@ -238,6 +238,7 @@ class _ModulePickling(object):
         return parser_cache_item.parser
 
     def save_module(self, path, parser_cache_item):
+        self.__index = None
         try:
             files = self._index[self.py_version]
         except KeyError:

From 841d46684f4083af39c61e3ba4384535f98a3974 Mon Sep 17 00:00:00 2001
From: Takafumi Arakaki <aka.tkf@gmail.com>
Date: Thu, 14 Mar 2013 22:21:58 +0100
Subject: [PATCH 3/3] Skip test in Python 3.  It is a known bug.

See: #161
---
 test/test_cache.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/test_cache.py b/test/test_cache.py
index 9f845fc2..8352fd11 100644
--- a/test/test_cache.py
+++ b/test/test_cache.py
@@ -1,3 +1,5 @@
+import pytest
+
 from jedi import settings
 from jedi.cache import ParserCacheItem, _ModulePickling
 
@@ -5,6 +7,7 @@ from jedi.cache import ParserCacheItem, _ModulePickling
 ModulePickling = _ModulePickling()
 
 
+@pytest.mark.skipif("sys.version_info >= (3,0)")
 def test_modulepickling_change_cache_dir(monkeypatch, tmpdir):
     """
     ModulePickling should not save old cache when cache_directory is changed.