def testRedundancyMultipleOccurence(self):
tiles = ['s', 'a', 'f', 'e', None, None, 's', 'a', 'f', None]
nodes = self.create_horizontal_nodes(tiles)
placements = Placement.placements('safe', nodes[0])
placement = placements[0]
self.assertFalse(Collision.safe(placement))
placements = Placement.placements('safe', nodes[6])
placement = placements[0]
self.assertTrue(Collision.safe(placement))
def testRedundancy(self):
# Run the test again, but without any empty space.
tiles = ['s', 'a', 'f', 'e', None, None]
nodes = self.create_horizontal_nodes(tiles)
placements = Placement.placements('safe', nodes[0])
placement = placements[0]
self.assertFalse(Collision.safe(placement))
tiles = ['a', 'b', 's', 'a', 'f', 'e', 't', 'b', 'z', 'x', 'h']
nodes = self.create_horizontal_nodes(tiles)
placements = Placement.placements('safe', nodes[2])
placement = placements[0]
self.assertEqual(placement.node(0), nodes[2])
self.assertEqual(placement.node(0).letter, 's')
self.assertFalse(Collision.safe(placement))
def testHorizontalSafe(self):
tiles = [None, 's', None, 'f', None]
nodes = self.create_horizontal_nodes(tiles)
placements = Placement.placements('safe', nodes[1])
self.assertEqual(len(placements), 2)
placement = placements[0]
# Test that we have the right start node.
self.assertEqual(placement.node(0), nodes[1])
# Make sure that there is no collision.
self.assertTrue(Collision.safe(placement))
vertical_placement = placements[1]
self.assertEqual(vertical_placement.node(0), nodes[1])
self.assertFalse(Collision.safe(vertical_placement))
def testHorizontalCollision(self):
tiles = [None, 's', 'a', 'e', None]
nodes = self.create_horizontal_nodes(tiles)
placements = Placement.placements('safe', nodes[1])
# We expect the vertical and horizontal placements.
placement = placements[0]
self.assertEqual(placement.node(0), nodes[1])
self.assertFalse(Collision.safe(placement))
def testVerticalSafe(self):
tiles = [None, 's', None, 'f', None]
nodes = self.create_vertical_nodes(tiles)
placements = Placement.placements('safe', nodes[1])
# There should be two placement objects returned from the previous static
# method.
# One would attempt to place it to the right, and the other downward. Of
# course the downward placement would fall right off the board, and should
# not pass the collision safety test.
self.assertEqual(len(placements), 2)
placement = placements[1]
# Test that we have the right start node.
self.assertEqual(placement.node(0), nodes[1])
# Make sure that there is no collision.
self.assertTrue(Collision.safe(placement))
horizontal_placement = placements[0]
self.assertEqual(horizontal_placement.node(0), nodes[1])
self.assertFalse(Collision.safe(horizontal_placement))
def testPreexistingLetters(self):
tiles = [None, None, None, 'x', 'z', 's', None, 'f', None]
nodes = self.create_vertical_nodes(tiles)
placements = Placement.placements('safe', nodes[5])
self.assertEqual(len(placements), 2)
placement = placements[1]
self.assertTrue(placement, Collision.safe(placement))
# The preexisting letters should contain the lettera 's' and 'f' because
# when placing the word 'safe' across from the letter 's' the letter 'f'
# would be used as well.
letters = Collision.preexisting_letters(placement)
self.assertEqual(len(letters), 2)
self.assertEqual(letters[0], 's')
self.assertEqual(letters[1], 'f')
