Made improvements to assure test-cases don't leak file handles

At least leakage is considerably reduced.
Additionally, a test-case was added which triggers failure if auto-disposal
of resources wouldn't work.

Fixes #60

1 files changed, 4 insertions, 0 deletions

diff --git a/git/repo/base.py b/git/repo/base.py
index e8db3540..934a6f03 100644
--- a/git/repo/base.py
+++ b/git/repo/base.py
@@ -168,6 +168,10 @@ class Repo(object):
             args.append(self.git)
         self.odb = odbt(*args)
 
+    def __del__(self):
+        if self.git:
+            self.git.clear_cache()
+
     def __eq__(self, rhs):
         if isinstance(rhs, Repo):
             return self.git_dir == rhs.git_dir