class TestRectangle(unittest.TestCase):
def setUp(self):
# test cases
self.Rectangle1 = Rectangle([1.5, 2, 4.5, 6.2])
self.Rectangle2 = Rectangle([1.5, 6.2, 4, 7])
self.Rectangle3 = Rectangle([-1, -1, 2.5, 2])
self.Rectangle4 = Rectangle([4.5, 6.2, 5, 7])
self.Rectangle5 = Rectangle([1.5, 2, 4.5, 6.2])
self.Rectangle6 = Rectangle([-1, 2, 1.5, 3])
self.Rectangle7 = Rectangle([-1, -3, 4.5, 2])
self.Rectangle8 = Rectangle([4.5, 2, 6.5, 3])
self.Rectangle9 = Rectangle([4.6, 2, 6.5, 4])
self.Rectangle10 = Rectangle([2, 2.5, 4, 6])
self.Rectangle11 = Rectangle([1.5, 2, 3.5, 5.2])
self.Rectangle12 = Rectangle([2, 3, 4.5, 6.2])
self.Rectangle13 = Rectangle([1.5, 2, 5, 7])
self.Rectangle14 = Rectangle([1, 1, 4.5, 6.2])
def test_width(self):
"""
Check if width calculation is correct
"""
self.assertEqual(self.Rectangle1.width, 3)
def test_height(self):
"""
Check if height calculation is correct
"""
self.assertEqual(self.Rectangle1.height, 4.2)
def test_area(self):
"""
Check if area calculation is correct
"""
self.assertAlmostEqual(self.Rectangle1.area, 12.6)
def test_is_intersect(self):
"""
Check if __and__ implemented correctly to find partially intersecting rectangles
to find intersecting rectangles
"""
# partially intersecting
self.assertTrue(self.Rectangle1 & self.Rectangle1)
self.assertTrue(self.Rectangle1 & self.Rectangle2)
self.assertTrue(self.Rectangle1 & self.Rectangle3)
self.assertTrue(self.Rectangle1 & self.Rectangle4)
self.assertTrue(self.Rectangle1 & self.Rectangle5)
self.assertTrue(self.Rectangle1 & self.Rectangle6)
self.assertTrue(self.Rectangle1 & self.Rectangle7)
self.assertTrue(self.Rectangle1 & self.Rectangle8)
# one fully inside the other one but sharing same boundary
self.assertTrue(self.Rectangle1 & self.Rectangle11)
self.assertTrue(self.Rectangle1 & self.Rectangle12)
# One is fully inside the other one
self.assertFalse(self.Rectangle1 & self.Rectangle10)
# Fully disjoint
self.assertFalse(self.Rectangle1 & self.Rectangle9)
def test_compare(self):
"""
check __lt__, __gt__, __eq__, and being fully disjoint
"""
# same coordinates
self.assertEqual(self.Rectangle1, self.Rectangle1)
# 1 fully wrapping 10
self.assertGreater(self.Rectangle1, self.Rectangle10)
# 10 is fully inside 1
self.assertLess(self.Rectangle10, self.Rectangle1)
# Fully disjoint
self.assertEqual(self.Rectangle1.compare(self.Rectangle9), 'disjoint')
# fully inside Rectangle1 but sharing same boundary
self.assertFalse(self.Rectangle11 < self.Rectangle1)
self.assertFalse(self.Rectangle12 < self.Rectangle1)
# fully outside Rectangle1 but sharing same boundary
self.assertFalse(self.Rectangle13 > self.Rectangle1)
self.assertFalse(self.Rectangle14 > self.Rectangle1)
def test_exception(self):
"""
Test if exception raises if given coordinates are NOT valid to shape a rectangle
"""
# bottom left coordinate must be smaller than top right coordinate
self.assertRaisesRegex(ValueError,
r'Coordinates \[4.6, 2, 4.6, 3\] are invalid',
Rectangle, [4.6, 2, 4.6, 3])
self.assertRaisesRegex(ValueError,
r'Coordinates \[4.6, 2, 4.5, 3\] are invalid',
Rectangle, [4.6, 2, 4.5, 3])
self.assertRaisesRegex(ValueError,
r'Coordinates \[4.6, 2, 5.5, 2\] are invalid',
Rectangle, [4.6, 2, 5.5, 2])
self.assertRaisesRegex(
ValueError, r'Coordinates \[4.6, 2, 5.5, 1.9\] are invalid',
Rectangle, [4.6, 2, 5.5, 1.9])
self.assertRaisesRegex(
ValueError,
r'Requires 4 values as min/max coordinates but received \[4.6, 2, 5.5\]',
Rectangle, [4.6, 2, 5.5])
self.assertRaisesRegex(
ValueError,
r'Requires 4 values as min/max coordinates but received \[4.6, 2, 5.5, 5, 3\]',
Rectangle, [4.6, 2, 5.5, 5, 3])
