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freecodecamp-projects/8-scientific-computing-python/4-polygon-area-calculator/test_module.py

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2022-11-27 14:01:33 +00:00
import unittest
import shape_calculator
class UnitTests(unittest.TestCase):
maxDiff = None
def setUp(self):
self.rect = shape_calculator.Rectangle(3, 6)
self.sq = shape_calculator.Square(5)
def test_subclass(self):
actual = issubclass(shape_calculator.Square, shape_calculator.Rectangle)
expected = True
self.assertEqual(actual, expected, 'Expected Square class to be a subclass of the Rectangle class.')
def test_distinct_classes(self):
actual = shape_calculator.Square is not shape_calculator.Rectangle
expected = True
self.assertEqual(actual, expected, 'Expected Square class to be a distinct class from the Rectangle class.')
def test_square_is_square_and_rectangle(self):
actual = isinstance(self.sq, shape_calculator.Square) and isinstance(self.sq, shape_calculator.Rectangle)
expected = True
self.assertEqual(actual, expected, 'Expected square object to be an instance of the Square class and the Rectangle class.')
def test_rectangle_string(self):
actual = str(self.rect)
expected = "Rectangle(width=3, height=6)"
self.assertEqual(actual, expected, 'Expected string representation of rectangle to be "Rectangle(width=3, height=6)"')
def test_square_string(self):
actual = str(self.sq)
expected = "Square(side=5)"
self.assertEqual(actual, expected, 'Expected string representation of square to be "Square(side=5)"')
def test_area(self):
actual = self.rect.get_area()
expected = 18
self.assertEqual(actual, expected, 'Expected area of rectangle to be 18')
actual = self.sq.get_area()
expected = 25
self.assertEqual(actual, expected, 'Expected area of square to be 25')
def test_perimeter(self):
actual = self.rect.get_perimeter()
expected = 18
self.assertEqual(actual, expected, 'Expected perimeter of rectangle to be 18')
actual = self.sq.get_perimeter()
expected = 20
self.assertEqual(actual, expected, 'Expected perimeter of square to be 20')
def test_diagonal(self):
actual = self.rect.get_diagonal()
expected = 6.708203932499369
self.assertEqual(actual, expected, 'Expected diagonal of rectangle to be 6.708203932499369')
actual = self.sq.get_diagonal()
expected = 7.0710678118654755
self.assertEqual(actual, expected, 'Expected diagonal of square to be 7.0710678118654755')
def test_set_attributes(self):
self.rect.set_width(7)
self.rect.set_height(8)
self.sq.set_side(2)
actual = str(self.rect)
expected = "Rectangle(width=7, height=8)"
self.assertEqual(actual, expected, 'Expected string representation of rectangle after setting new values to be "Rectangle(width=7, height=8)"')
actual = str(self.sq)
expected = "Square(side=2)"
self.assertEqual(actual, expected, 'Expected string representation of square after setting new values to be "Square(side=2)"')
self.sq.set_width(4)
actual = str(self.sq)
expected = "Square(side=4)"
self.assertEqual(actual, expected, 'Expected string representation of square after setting width to be "Square(side=4)"')
def test_rectangle_picture(self):
self.rect.set_width(7)
self.rect.set_height(3)
actual = self.rect.get_picture()
expected = "*******\n*******\n*******\n"
self.assertEqual(actual, expected, 'Expected rectangle picture to be different.')
def test_square_picture(self):
self.sq.set_side(2)
actual = self.sq.get_picture()
expected = "**\n**\n"
self.assertEqual(actual, expected, 'Expected square picture to be different.')
def test_big_picture(self):
self.rect.set_width(51)
self.rect.set_height(3)
actual = self.rect.get_picture()
expected = "Too big for picture."
self.assertEqual(actual, expected, 'Expected message: "Too big for picture."')
def test_get_amount_inside(self):
self.rect.set_height(10)
self.rect.set_width(15)
actual = self.rect.get_amount_inside(self.sq)
expected = 6
self.assertEqual(actual, expected, 'Expected `get_amount_inside` to return 6.')
def test_get_amount_inside_two_rectangles(self):
rect2 = shape_calculator.Rectangle(4, 8)
actual = rect2.get_amount_inside(self.rect)
expected = 1
self.assertEqual(actual, expected, 'Expected `get_amount_inside` to return 1.')
def test_get_amount_inside_none(self):
rect2 = shape_calculator.Rectangle(2, 3)
actual = rect2.get_amount_inside(self.rect)
expected = 0
self.assertEqual(actual, expected, 'Expected `get_amount_inside` to return 0.')
if __name__ == "__main__":
unittest.main()