old_contents: import os
  import unittest
  
  from storages import metadata
  
  class SchemeTest(unittest.TestCase):
  
      def test_create_scheme(self):
          
          scheme = metadata.Scheme()
          self.assertEqual(type(scheme), metadata.Scheme)
  
  
      def test_scheme_as_dict(self):
  
          scheme = metadata.Scheme()
          self.assertEqual(scheme.as_dict(), {'item_id': None, 'key': None, 'value': None})        
  
  
  class MetadataTest(unittest.TestCase):
  
      def test_create_metadata(self):
  
          database_path = ':memory:'
          meta = metadata.Metadata(database_path)
          self.assertTrue(os.path.exists(database_path))
  
      def test_store_metadata(self):
  
          database_path = ':memory:'
          meta = metadata.Metadata(database_path)
          self.assertTrue(os.path.exists(database_path))
  
          self.assertRaises(RuntimeError, meta.put, None, None)
          self.assertRaises(RuntimeError, meta.put, 'a1', None)
          meta.put('b1', [('k1','v1'),])
          meta.put('b1', [('k1','v1'),('k2','v2')])
          meta.put('b1', [('k2','v3'),('k3','v2')])
          self.assertEqual(meta.get('b1'), ('b1', [('k1','v1'),('k2','v2'),('k2','v3'),('k3','v2')]))
  
          meta.delete('b1')
          self.assertEqual(meta.get('b1'), ('b1', []))
  
  
      def test_get_metadata(self):
  
          database_path = ':memory:'
          meta = metadata.Metadata(database_path)
          self.assertTrue(os.path.exists(database_path))
  
          meta.put('b1', [('k1','v1')])
          meta.put('b2', [('k2','v2')])
          meta.put('b3', [('k3','v3')])
          self.assertEqual(meta.get(), [(u'b1', [(u'k1', u'v1')]), (u'b2', [(u'k2', u'v2')]), (u'b3', [(u'k3', u'v3')])])
  
          meta.delete(['b1', 'b2', 'b3'])
          self.assertEqual(meta.count(),0)
          
  
      def test_search_metadata(self):
  
          database_path = ':memory:'
          meta = metadata.Metadata(database_path)
          self.assertTrue(os.path.exists(database_path))
  
          meta.put('b1', [('k1','v1')])
          meta.put('b2', [('k1','v2')])
          meta.put('b3', [('k1','v3')])
  
          self.assertEqual(meta.search('k1', 'v2'), ['b2'])
          
  
  
new_contents: import os
  import unittest
  
  from storages import metadata
  
  class SchemeTest(unittest.TestCase):
  
      def test_create_scheme(self):
          
          scheme = metadata.Scheme()
          self.assertEqual(type(scheme), metadata.Scheme)
  
  
      def test_scheme_as_dict(self):
  
          scheme = metadata.Scheme()
          self.assertEqual(scheme.as_dict(), {'item_id': None, 'key': None, 'value': None})        
  
  
  class MetadataTest(unittest.TestCase):
  
      def test_create_metadata(self):
  
          database_path = ':memory:'
          meta = metadata.Metadata(database_path)
          self.assertTrue(type(meta), metadata.Metadata)
  
      def test_store_metadata(self):
  
          database_path = ':memory:'
          meta = metadata.Metadata(database_path)
  
          self.assertRaises(RuntimeError, meta.put, None, None)
          self.assertRaises(RuntimeError, meta.put, 'a1', None)
          meta.put('b1', [('k1','v1'),])
          meta.put('b1', [('k1','v1'),('k2','v2')])
          meta.put('b1', [('k2','v3'),('k3','v2')])
          self.assertEqual(meta.get('b1'), ('b1', [('k1','v1'),('k2','v2'),('k2','v3'),('k3','v2')]))
  
          meta.delete('b1')
          self.assertEqual(meta.get('b1'), ('b1', []))
  
  
      def test_get_metadata(self):
  
          database_path = ':memory:'
          meta = metadata.Metadata(database_path)
  
          meta.put('b1', [('k1','v1')])
          meta.put('b2', [('k2','v2')])
          meta.put('b3', [('k3','v3')])
          self.assertEqual(meta.get(), [(u'b1', [(u'k1', u'v1')]), (u'b2', [(u'k2', u'v2')]), (u'b3', [(u'k3', u'v3')])])
  
          meta.delete(['b1', 'b2', 'b3'])
          self.assertEqual(meta.count(),0)
          
  
      def test_search_metadata(self):
  
          database_path = ':memory:'
          meta = metadata.Metadata(database_path)
  
          meta.put('b1', [('k1','v1')])
          meta.put('b2', [('k1','v2')])
          meta.put('b3', [('k1','v3')])
  
          self.assertEqual(meta.search('k1', 'v2'), ['b2'])
          
  
  
subject: remove old references to file based db