def test_is_border(self):
"""Test identifying whether two points border each other"""
self.assertTrue(Point(4, 4).is_border(Point(5, 5)))
self.assertTrue(Point(5, 5).is_border(Point(4, 4)))
self.assertTrue(Point(4, 4).is_border(Point(4, 5)))
self.assertTrue(Point(4, 5).is_border(Point(5, 5)))
self.assertFalse(Point(4, 4).is_border(Point(6, 6)))
def test_rotate(self):
"""Test some sample rotations"""
point = Point(8, 10)
around = Point(7, 7)
self.assertEqual(point.rotate(around=around, degrees=90), Point(10, 6))
self.assertEqual(point.rotate(around=around, degrees=180), Point(6, 4))
self.assertEqual(point.rotate(around=around, degrees=270), Point(4, 8))
self.assertEqual(point.rotate(around=around, degrees=-90), Point(4, 8))
def test_rotate_identity(self):
"""Test rotating a point around itself"""
point = Point(4, 4)
around = Point(4, 4)
rotation = Point(4, 4)
self.assertEqual(point.rotate(around=around, degrees=0), rotation)
self.assertEqual(point.rotate(around=around, degrees=90), rotation)
self.assertEqual(point.rotate(around=around, degrees=180), rotation)
self.assertEqual(point.rotate(around=around, degrees=270), rotation)
def test_rotate_raises(self):
"""Test raising an error for rotation degrees not multiple of 90"""
point = Point(4, 4)
around = Point(5, 5)
self.assertRaises(ValueError, point.rotate, around, 120)
def test_borders(self):
"""Test a Point's borders"""
point = Point(4, 4)
borders = {
Point(5, 5),
Point(3, 5),
Point(3, 3),
Point(5, 3),
Point(5, 4),
Point(4, 5),
Point(3, 4),
Point(4, 3),
}
self.assertEqual(point.borders(), borders)
def test_reflect_identity(self):
"""Test reflecting a point over itself"""
point = Point(4, 4)
x_value, y_value = 4, 4
reflection = Point(4, 4)
self.assertEqual(point.reflect(x=x_value, y=y_value), reflection)
def test_reflect_xy(self):
"""Test reflecting a point over a horizontal and vertical lines"""
point = Point(4, 4)
x_value, y_value = 7, 1
reflection = Point(10, -2)
self.assertEqual(point.reflect(x=x_value, y=y_value), reflection)
def test_reflect_y(self):
"""Test reflecting a point over a horizontal line"""
point = Point(4, 4)
y_value = 1
reflection = Point(4, -2)
self.assertEqual(point.reflect(y=y_value), reflection)
def test_reflect_x(self):
"""Test reflecting a point over a vertical line"""
point = Point(4, 4)
x_value = 7
reflection = Point(10, 4)
self.assertEqual(point.reflect(x=x_value), reflection)
def test_is_side(self):
"""Test identifying whether two points are sides of each other"""
self.assertTrue(Point(4, 4).is_side(Point(4, 5)))
self.assertTrue(Point(4, 5).is_side(Point(5, 5)))
self.assertFalse(Point(4, 4).is_side(Point(5, 5)))
self.assertFalse(Point(5, 5).is_side(Point(4, 4)))
def test_sides(self):
"""Test a point's sides"""
point = Point(4, 4)
sides = {Point(5, 4), Point(4, 5), Point(3, 4), Point(4, 3)}
self.assertEqual(point.sides(), sides)
def test_corners(self):
"""Test a point's corners"""
point = Point(4, 4)
corners = {Point(5, 5), Point(3, 5), Point(3, 3), Point(5, 3)}
self.assertEqual(point.corners(), corners)