def test_add_chord(self):
M1 = PlanarMap()
A, B, C, D = Point(0, 1), Point(1, 1), Point(0, 0), Point(1, 0)
# empty map
self.assertRaises(AssertionError, M1.add_chord, Segment(B, D))
M1.add_first_edge(Segment(A, B))
# adding leaf
self.assertRaises(AssertionError, M1.add_chord, Segment(A, C))
M1.add_leaf(Segment(A, C))
M1.add_chord(Segment(C, B))
# adding the same chord
self.assertRaises(ValueError, M1.add_chord, Segment(A, B))
class TestPlanarMap1(unittest.TestCase):
def setUp(self):
self.M = PlanarMap()
A, B, C, D = Point(0, 1), Point(1, 1), Point(0, 0), Point(1, 0)
self.M.add_first_edge(Segment(A, B))
self.M.add_leaf(Segment(A, C))
self.M.add_leaf(Segment(B, D))
self.M.add_chord(Segment(C, B))
#self.G.show()
def test_add_first_edge(self):
M1 = PlanarMap()
A, B, C, D = Point(0, 1), Point(1, 1), Point(0, 0), Point(1, 0)
# not segment
self.assertRaises(AssertionError, M1.add_first_edge, Edge(B, D))
M1.add_first_edge(Segment(A, B))
# second segment
self.assertRaises(AssertionError, M1.add_first_edge, Segment(B, D))
def test_add_leaf(self):
M1 = PlanarMap()
A, B, C, D = Point(0, 1), Point(1, 1), Point(0, 0), Point(1, 0)
# empty map
self.assertRaises(AssertionError, M1.add_leaf, Segment(B, D))
M1.add_first_edge(Segment(A, B))
M1.add_leaf(Segment(A, C))
# adding chord
self.assertRaises(AssertionError, M1.add_leaf, Segment(B, C))
# adding the same leaf
self.assertRaises(AssertionError, M1.add_leaf, Segment(A, C))
#M1.show()
def test_add_chord(self):
M1 = PlanarMap()
A, B, C, D = Point(0, 1), Point(1, 1), Point(0, 0), Point(1, 0)
# empty map
self.assertRaises(AssertionError, M1.add_chord, Segment(B, D))
M1.add_first_edge(Segment(A, B))
# adding leaf
self.assertRaises(AssertionError, M1.add_chord, Segment(A, C))
M1.add_leaf(Segment(A, C))
M1.add_chord(Segment(C, B))
# adding the same chord
self.assertRaises(ValueError, M1.add_chord, Segment(A, B))
#M1.show()
def test_divide_edge(self):
M1 = PlanarMap()
A, B, C, D = Point(0, 2), Point(2, 2), Point(0, 0), Point(2, 0)
AB = Segment(A, B)
M1.add_first_edge(AB)
#M1.divide_edge(AB, Point(1, 2))
M1.divide_edge(Segment(A, B), Point(1, 2)) # it works
self.assertEqual(M1.v(), 3)
self.assertEqual(M1.e(), 2)
self.assertEqual(M1.f(), 1)
#M1.show()
def test_parameters(self):
self.assertEqual(self.M.v(), 4)
self.assertEqual(self.M.e(), 4)
self.assertEqual(self.M.f(), 2)
def test_iteredges(self):
B = Point(1, 1)
Bout = list(self.M.iteroutedges(B))
Bin = list(self.M.iterinedges(B))
self.assertEqual(len(Bout), 3)
self.assertEqual(len(Bin), 3)
for segment in self.M.iteroutedges(B):
self.assertEqual(segment.source, B)
for segment in self.M.iterinedges(B):
self.assertEqual(segment.target, B)
def test_iteredges_connected(self):
start_edge = next(self.M.iteredges())
A = set([start_edge.source, start_edge.target])
for edge in self.M.iteredges_connected(start_edge):
B = set([edge.source, edge.target])
self.assertTrue(len(A & B) > 0)
A.update(B)
#print ( A )
def test_copy(self):
T = self.M.copy()
self.assertEqual(T.v(), self.M.v())
self.assertEqual(T.e(), self.M.e())
for node in T.iternodes():
self.assertTrue(self.M.has_node(node))
for edge in T.iteredges():
self.assertTrue(self.M.has_edge(edge))
def test_degree(self):
self.assertEqual(self.M.degree(Point(0, 1)), 2)
self.assertEqual(self.M.degree(Point(1, 1)), 3)
self.assertEqual(self.M.degree(Point(0, 0)), 2)
self.assertEqual(self.M.degree(Point(1, 0)), 1)
def test_exceptions(self):
self.assertRaises(AssertionError, self.M.add_edge,
Edge(Point(0, 0), Point(1, 0)))
#self.assertRaises(ValueError, self.M.add_edge, Segment(Point(0, 0), Point(0, 0)))
self.assertRaises(ValueError, self.M.add_edge,
Segment(Point(1, 0), Point(1, 1)))
self.assertRaises(AssertionError, self.M.add_node, "A")
def test_init_segment(self):
M1 = PlanarMap(Segment(0, 1, 2, 3))
self.assertEqual(M1.v(), 2)
self.assertEqual(M1.e(), 1)
self.assertEqual(M1.f(), 1)
def test_init_triangle(self):
M1 = PlanarMap(Triangle(0, 0, 1, 0, 1, 1))
self.assertEqual(M1.v(), 3)
self.assertEqual(M1.e(), 3)
self.assertEqual(M1.f(), 2)
def test_init_rectangle(self):
M1 = PlanarMap(Rectangle(0, 0, 1, 2))
self.assertEqual(M1.v(), 4)
self.assertEqual(M1.e(), 4)
self.assertEqual(M1.f(), 2)
# D
# / \
# E C
# | |
# A-------B
def test_init_polygon(self):
M1 = PlanarMap(Polygon(0, 0, 2, 0, 2, 1, 1, 2, 0, 1))
self.assertEqual(M1.v(), 5)
self.assertEqual(M1.e(), 5)
self.assertEqual(M1.f(), 2)
# D
# |
# A---+---B
# |
# C
def test_mapoverlay1(self):
M1 = PlanarMap(Segment(0, 1, 2, 1))
M2 = PlanarMap(Segment(1, 0, 1, 2))
M3 = M1.map_overlay(M2)
self.assertEqual(M3.v(), 5)
self.assertEqual(M3.e(), 4)
self.assertEqual(M3.f(), 1)
#print(list(M3.iternodes()))
#print(list(M3.iteredges()))
def tearDown(self):
pass