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- import unittest
- from modelverse_state.main import ModelverseState
- class TestDeleteNode(unittest.TestCase):
- def setUp(self):
- self.mvs = ModelverseState()
- def test_delete_node_no_exists(self):
- n = self.mvs.delete_node(-1)
- assert n == None
- def test_delete_node_no_value(self):
- a = self.mvs.create_node()
- assert a != None
- n = self.mvs.delete_node(a)
- assert n == None
- def test_delete_node_value(self):
- a = self.mvs.create_nodevalue(1)
- assert a != None
- d = self.mvs.read_value(a)
- assert d == 1
- n = self.mvs.delete_node(a)
- assert n == None
- d = self.mvs.read_value(a)
- assert d == None
- self.assertEquals(d, None)
- def test_delete_node_edge(self):
- a = self.mvs.create_node()
- b = self.mvs.create_node()
- c = self.mvs.create_edge(a, b)
- assert a != None
- assert b != None
- assert c != None
- n = self.mvs.delete_node(c)
- assert n == None
- def test_delete_node_remove_edge_outgoing(self):
- a = self.mvs.create_nodevalue(1)
- b = self.mvs.create_node()
- c = self.mvs.create_edge(a, b)
- assert a != None
- assert b != None
- assert c != None
- n = self.mvs.delete_node(a)
- assert n == None
- d = self.mvs.read_value(a)
- assert d == None
- s, t = self.mvs.read_edge(c)
- assert s == None
- assert t == None
- d = self.mvs.read_outgoing(b)
- assert d != None
- assert set(d) == set([])
- def test_delete_node_remove_edge_incoming(self):
- a = self.mvs.create_nodevalue(1)
- b = self.mvs.create_node()
- c = self.mvs.create_edge(b, a)
- assert a != None
- assert b != None
- assert c != None
- n = self.mvs.delete_node(a)
- assert n == None
- d = self.mvs.read_value(a)
- assert d == None
- s, t = self.mvs.read_edge(c)
- assert s == None
- assert t == None
- d = self.mvs.read_outgoing(b)
- assert d != None
- assert set(d) == set([])
- def test_delete_node_remove_edge_both(self):
- a = self.mvs.create_nodevalue(1)
- b = self.mvs.create_node()
- c = self.mvs.create_edge(a, b)
- e = self.mvs.create_node()
- f = self.mvs.create_edge(e, a)
- assert a != None
- assert b != None
- assert c != None
- assert e != None
- assert f != None
- n = self.mvs.delete_node(a)
- assert n == None
- d = self.mvs.read_value(a)
- assert d == None
- s, t = self.mvs.read_edge(c)
- assert s == None
- assert t == None
- d = self.mvs.read_incoming(b)
- assert d != None
- assert set(d) == set([])
- s, t = self.mvs.read_edge(f)
- assert s == None
- assert t == None
- d = self.mvs.read_outgoing(e)
- assert d != None
- assert set(d) == set([])
- def test_delete_node_remove_edge_recursive(self):
- a = self.mvs.create_nodevalue(1)
- b = self.mvs.create_node()
- c = self.mvs.create_edge(a, b)
- d = self.mvs.create_edge(c, b)
- assert a != None
- assert b != None
- assert c != None
- assert d != None
- n = self.mvs.delete_node(a)
- assert n == None
- d = self.mvs.read_value(a)
- assert d == None
- s, t = self.mvs.read_edge(c)
- assert s == None
- assert t == None
- s, t = self.mvs.read_edge(d)
- assert s == None
- assert t == None
- d = self.mvs.read_outgoing(b)
- assert d != None
- assert set(d) == set([])
- def test_delete_node_remove_edge_recursive_deep(self):
- a = self.mvs.create_node()
- b = self.mvs.create_node()
- c = self.mvs.create_node()
- d = self.mvs.create_edge(a, b)
- e = self.mvs.create_edge(d, c)
- f = self.mvs.create_node()
- g = self.mvs.create_edge(f, e)
- h = self.mvs.create_edge(b, c)
- assert a != None
- assert b != None
- assert c != None
- assert d != None
- assert e != None
- assert f != None
- assert g != None
- assert h != None
- n = self.mvs.delete_node(a)
- assert n == None
- l = self.mvs.read_outgoing(a)
- assert l == None
- l = self.mvs.read_incoming(a)
- assert l == None
- l = self.mvs.read_outgoing(b)
- assert l != None
- assert set(l) == set([h])
- l = self.mvs.read_incoming(b)
- assert l != None
- assert set(l) == set([])
- l = self.mvs.read_outgoing(c)
- assert l != None
- assert set(l) == set([])
- l = self.mvs.read_incoming(c)
- assert l != None
- assert set(l) == set([h])
- s, t = self.mvs.read_edge(d)
- assert s == None
- assert t == None
- s, t = self.mvs.read_edge(e)
- assert s == None
- assert t == None
- s, t = self.mvs.read_edge(g)
- assert s == None
- assert t == None
- l = self.mvs.read_outgoing(f)
- assert l != None
- assert set(l) == set([])
- l = self.mvs.read_incoming(f)
- assert l != None
- assert set(l) == set([])
- s, t = self.mvs.read_edge(h)
- assert s == b
- assert t == c
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