Merge pull request #1607 from minrk/cleanup_sqlitedb

cleanup sqlitedb temporary db file after tests, and make the temp db file have a random name to avoid possible collisions with simultaneous test runs.

IPython/parallel/tests/test_db.py

@@ -18,6 +18,7 b' Authors:'
 
 from __future__ import division
 
+import os
 import tempfile
 import time
 
@@ -37,6 +38,12 b' from IPython.zmq.session import Session'
 # TestCases
 #-------------------------------------------------------------------------------
 
+
+def setup():
+    global temp_db
+    temp_db = tempfile.NamedTemporaryFile(suffix='.db').name
+
+
 class TestDictBackend(TestCase):
     def setUp(self):
         self.session = Session()
@@ -218,7 +225,16 b' class TestSQLiteBackend(TestDictBackend):'
 
     @dec.skip_without('sqlite3')
     def create_db(self):
-        return SQLiteDB(location=tempfile.gettempdir())
+        location, fname = os.path.split(temp_db)
+        return SQLiteDB(location=location, fname=fname)
     
     def tearDown(self):
         self.db._db.close()
+
+
+def teardown():
+    """cleanup task db file after all tests have run"""
+    try:
+        os.remove(temp_db)
+    except:
+        pass