148 lines
4.0 KiB
Python
148 lines
4.0 KiB
Python
import unittest
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from robot_simulator import (
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Robot,
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NORTH,
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EAST,
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SOUTH,
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WEST,
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)
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# Tests adapted from `problem-specifications//canonical-data.json`
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class RobotSimulatorTest(unittest.TestCase):
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# Test create robot
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def test_at_origin_facing_north(self):
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robot = Robot(NORTH, 0, 0)
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self.assertEqual(robot.coordinates, (0, 0))
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self.assertEqual(robot.direction, NORTH)
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def test_at_negative_position_facing_south(self):
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robot = Robot(SOUTH, -1, -1)
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self.assertEqual(robot.coordinates, (-1, -1))
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self.assertEqual(robot.direction, SOUTH)
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# Test rotating clockwise
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def test_changes_north_to_east(self):
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robot = Robot(NORTH, 0, 0)
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robot.move("R")
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self.assertEqual(robot.coordinates, (0, 0))
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self.assertEqual(robot.direction, EAST)
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def test_changes_east_to_south(self):
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robot = Robot(EAST, 0, 0)
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robot.move("R")
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self.assertEqual(robot.coordinates, (0, 0))
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self.assertEqual(robot.direction, SOUTH)
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def test_changes_south_to_west(self):
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robot = Robot(SOUTH, 0, 0)
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robot.move("R")
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self.assertEqual(robot.coordinates, (0, 0))
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self.assertEqual(robot.direction, WEST)
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def test_changes_west_to_north(self):
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robot = Robot(WEST, 0, 0)
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robot.move("R")
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self.assertEqual(robot.coordinates, (0, 0))
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self.assertEqual(robot.direction, NORTH)
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# Test rotating counter-clockwise
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def test_changes_north_to_west(self):
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robot = Robot(NORTH, 0, 0)
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robot.move("L")
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self.assertEqual(robot.coordinates, (0, 0))
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self.assertEqual(robot.direction, WEST)
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def test_changes_west_to_south(self):
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robot = Robot(WEST, 0, 0)
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robot.move("L")
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self.assertEqual(robot.coordinates, (0, 0))
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self.assertEqual(robot.direction, SOUTH)
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def test_changes_south_to_east(self):
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robot = Robot(SOUTH, 0, 0)
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robot.move("L")
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self.assertEqual(robot.coordinates, (0, 0))
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self.assertEqual(robot.direction, EAST)
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def test_changes_east_to_north(self):
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robot = Robot(EAST, 0, 0)
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robot.move("L")
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self.assertEqual(robot.coordinates, (0, 0))
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self.assertEqual(robot.direction, NORTH)
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# Test moving forward one
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def test_facing_north_increments_y(self):
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robot = Robot(NORTH, 0, 0)
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robot.move("A")
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self.assertEqual(robot.coordinates, (0, 1))
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self.assertEqual(robot.direction, NORTH)
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def test_facing_south_decrements_y(self):
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robot = Robot(SOUTH, 0, 0)
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robot.move("A")
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self.assertEqual(robot.coordinates, (0, -1))
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self.assertEqual(robot.direction, SOUTH)
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def test_facing_east_increments_x(self):
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robot = Robot(EAST, 0, 0)
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robot.move("A")
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self.assertEqual(robot.coordinates, (1, 0))
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self.assertEqual(robot.direction, EAST)
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def test_facing_west_decrements_x(self):
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robot = Robot(WEST, 0, 0)
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robot.move("A")
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self.assertEqual(robot.coordinates, (-1, 0))
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self.assertEqual(robot.direction, WEST)
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# Test follow series of instructions
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def test_moving_east_and_north_from_readme(self):
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robot = Robot(NORTH, 7, 3)
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robot.move("RAALAL")
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self.assertEqual(robot.coordinates, (9, 4))
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self.assertEqual(robot.direction, WEST)
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def test_moving_west_and_north(self):
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robot = Robot(NORTH, 0, 0)
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robot.move("LAAARALA")
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self.assertEqual(robot.coordinates, (-4, 1))
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self.assertEqual(robot.direction, WEST)
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def test_moving_west_and_south(self):
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robot = Robot(EAST, 2, -7)
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robot.move("RRAAAAALA")
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self.assertEqual(robot.coordinates, (-3, -8))
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self.assertEqual(robot.direction, SOUTH)
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def test_moving_east_and_north(self):
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robot = Robot(SOUTH, 8, 4)
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robot.move("LAAARRRALLLL")
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self.assertEqual(robot.coordinates, (11, 5))
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self.assertEqual(robot.direction, NORTH)
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if __name__ == "__main__":
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unittest.main()
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