class DB(object):
def __enter__(self):
self.db = GraphDB('/tmp/altneo4j')
return self.db
def __exit__(self, *args, **kwargs):
self.db.close()
shutil.rmtree('/tmp/altneo4j')
class FunctionnalTests(unittest.TestCase):
path = '/tmp/altneo4j/'
def setUp(self):
self.db = GraphDB(self.path)
def tearDown(self):
self.db.close()
shutil.rmtree(self.path)
def test_create_db(self):
self.assertTrue(self.db)
def test_create_node(self):
with self.db.transaction():
node = self.db.node()
self.assertTrue(node)
def test_node_property(self):
with self.db.transaction():
node = self.db.node()
node['name'] = 'amirouche'
self.assertEqual(node['name'], 'amirouche')
def test_create_relationship(self):
with self.db.transaction():
A = self.db.node()
B = self.db.node()
relationship = A.link(B)
self.assertTrue(relationship)
def test_relationship_property(self):
with self.db.transaction():
amirouche = self.db.node()
python = self.db.node()
relationship = amirouche.knows(python)
relationship['years'] = 10
self.assertEqual(relationship['years'], 10)
def test_relationship_start_node(self):
with self.db.transaction():
amirouche = self.db.node()
python = self.db.node()
relationship = amirouche.knows(python)
self.assertEqual(relationship.start(), amirouche)
def test_relationship_end_node(self):
with self.db.transaction():
amirouche = self.db.node()
python = self.db.node()
relationship = amirouche.knows(python)
self.assertEqual(relationship.end(), python)
def test_relationship_type(self):
with self.db.transaction():
amirouche = self.db.node()
python = self.db.node()
relationship = amirouche.knows(python)
self.assertEqual(relationship.type(), 'knows')
def test_iter_relationships(self):
with self.db.transaction():
amirouche = self.db.node()
python = self.db.node()
c = self.db.node()
cpp = self.db.node()
amirouche.knows(python)
amirouche.knows(c)
amirouche.knows(cpp)
nb = 0
for relationship in self.db.relationships():
self.assertTrue(relationship)
nb += 1
self.assertEqual(nb, 3)
def test_iter_relationships_type(self):
with self.db.transaction():
amirouche = self.db.node()
python = self.db.node()
c = self.db.node()
cpp = self.db.node()
bigdata = self.db.node()
amirouche.knows(python)
amirouche.knows(c)
amirouche.knows(cpp)
amirouche.like(bigdata)
nb = 0
for relationship in self.db.relationships():
self.assertTrue(relationship)
nb += 1
self.assertEqual(nb, 4)
def test_iter_node_outgoing(self):
with self.db.transaction():
amirouche = self.db.node()
python = self.db.node()
c = self.db.node()
cpp = self.db.node()
amirouche.knows(python)
amirouche.knows(c)
amirouche.knows(cpp)
nb = 0
for relationship in amirouche.relationships.outgoing():
self.assertTrue(relationship)
nb += 1
self.assertEqual(nb, 3)
def test_iter_incoming(self):
with self.db.transaction():
amirouche = self.db.node()
python = self.db.node()
c = self.db.node()
cpp = self.db.node()
amirouche.knows(python)
amirouche.knows(c)
amirouche.knows(cpp)
nb = 0
for relationship in python.relationships.incoming():
self.assertTrue(relationship)
nb += 1
self.assertEqual(nb, 1)
def test_get_node_by_id(self):
with self.db.transaction():
node = self.db.node()
copy = self.db.nodes.get(node.id)
self.assertEqual(node, copy)
def test_get_relationship_by_id(self):
with self.db.transaction():
amirouche = self.db.node()
python = self.db.node()
knows = amirouche.knows(python)
copy = self.db.relationships.get(knows.id)
self.assertEqual(knows, copy)
def setUp(self):
self.db = GraphDB(self.path)
def __enter__(self):
self.db = GraphDB('/tmp/altneo4j')
return self.db