def test_point_positive_init_correct_arguments(self):
"""Positive test of __init__ function with both correct arguments."""
p = Point(2, 23.52)
self.assertEqual(
p.x, 2.0,
'Test of Point(2, 23.52).x failed. Returned value != 2.0')
self.assertEqual(
p.y, 23.52,
'Test of Point(2, 23.52).y failed. Returned value != 23.52')
p = Point(x=2, y=23.52)
self.assertEqual(
p.x, 2.0,
'Test of Point(x=2, y=23.52).x failed. Returned value != 2.0')
self.assertEqual(
p.y, 23.52,
'Test of Point(x=2, y=23.52).y failed. Returned value != 23.52')
p = Point(y=2, x=23.52)
self.assertEqual(
p.y, 2.0,
'Test of Point(y=2, x=23.52).x failed. Returned value != 23.52')
self.assertEqual(
p.x, 23.52,
'Test of Point(y=2, x=23.52).y failed. Returned value != 2.0')
def test_point_negative_x_and_y_setting_deleting(self):
"""Negative test of attribute setting and deleting method."""
p = Point(x=6.67, y=5.34)
with self.assertRaises(AttributeError) as err:
p.x = 9
self.assertEqual(
err.args[0], "Can't set attribute.",
"Test of Point(x=6.67, y=5.34).x = 9 failed, no AttributeError was raised."
)
with self.assertRaises(AttributeError) as err:
p.y = 10
self.assertEqual(
err.args[0], "Can't set attribute.",
"Test of Point(x=6.67, y=5.34).y = 10 failed, no AttributeError was raised."
)
with self.assertRaises(AttributeError) as err:
del p.x
self.assertEqual(
err.args[0], "Can't delete attribute.",
"Test of del Point(x=6.67, y=5.34).x failed, no AttributeError was raised."
)
with self.assertRaises(AttributeError) as err:
del p.y
self.assertEqual(
err.args[0], "Can't delete attribute.",
"Test of del Point(x=6.67, y=5.34).y failed, no AttributeError was raised."
)
def test_point_positive_str(self):
"""Positive test of __repr__ method."""
p = Point(x=3, y=5)
self.assertEqual(
p.__str__(), '(3.0, 5.0)',
'Test of Point(x=3, y=5).__repr__() failed. Returned value != (3.0, 5.0)'
)
def test_triangle_positive_init(self):
"""Positive test of Triangle.__init__ method."""
t = Triangle(Point(1, 1), Point(2, 3), Point(4, 5))
self.assertEqual(
str(t), '((1.0, 1.0), (2.0, 3.0), (4.0, 5.0))',
"Test of Triangle(Point(0, 0), Point(8, 0), Point(4, 5)) failed,\
returned value != ((1.0, 1.0), (2.0, 3.0), (4.0, 5.0))."
)
def test_triangle_negative_init_points_on_line(self):
"""Negative test of Triangle.__init__ method. Points belong to one line."""
with self.assertRaises(ValueError) as err:
Triangle(Point(1, 1), Point(1, 3), Point(1, 5))
self.assertEqual(
err.args[0],
"Given points belong to one line and can not define triangle.",
"Triangle(Point(1, 1), Point(1, 3), Point(1, 5)) failed, no ValueError was raised."
)
def test_point_positive_add(self):
"""Positive test of __add__ method."""
p1 = Point(x=3, y=5)
p2 = Point(5, 3)
p = p1 + p2
self.assertEqual(
str(p), '(8.0, 8.0)',
'Test of Point(x=3, y=5) + Point(5, 3) failed. Returned value != (8.0, 8.0)'
)
def test_triangle_negative_area_negative_mantissa(self):
"""Negative test of Triangle.area method. Give -1 as mantissa value."""
t = Triangle(Point(0, 3.1415), Point(2.7, 3), Point(3**0.5, 6.023))
with self.assertRaises(ValueError) as err:
t.area(-1)
self.assertEqual(
err.args[0], "Negative number for mantissa is not allowed.",
"Triangle(Point(0, 3.1415), Point(2.7, 3), Point(3 ** 0.5, 6.023)).area(-1) failed,\
no ValueError was raised.")
def test_point_negative_on_one_line(self):
"""Negative test of Point.on_one_line method."""
a = Point(1, 0)
b = Point(34, 0)
c = Point(42, 0)
with self.assertRaises(ValueError) as err:
Point.on_one_line('foo', a, b, c)
self.assertEqual(
err.args[0], "Some of given arguments is not points.",
"Test of Point.on_one_line('foo', a, b, c) failed, no ValueError was raised."
)
def test_point_positive_distance(self):
"""Positive test of Point.distance method."""
p1 = Point(1, 7)
p2 = Point(4, 23)
self.assertEqual(
p1.distance(p2), 265**0.5,
"Test of Point(1, 7).distance(Point(4, 23)) failed, returned value != 16.278820596099706."
)
self.assertEqual(
p1.distance(), 5 * 2**0.5,
"Test of Point(x=6.67, y=5.34).distance() failed, returned value != 7.0710678118654755."
)
def test_triangle_positive_area(self):
"""Positive test of Triangle.area method."""
t = Triangle(Point(0, 3.1415), Point(2.7, 3), Point(3**0.5, 6.023))
self.assertEqual(
t.area(1), 4.0,
"Test of Triangle(Point(0, 3.1415), Point(2.7, 3), Point(3 ** 0.5, 6.023)).area(1),\
returned value != 4.0.")
self.assertEqual(
t.area(), 4.013,
"Test of Triangle(Point(0, 3.1415), Point(2.7, 3), Point(3 ** 0.5, 6.023)).area(1) failed,\
returned value != 4.013.")
self.assertEqual(
t.area(6), 4.012568,
"Test of Triangle(Point(0, 3.1415), Point(2.7, 3), Point(3 ** 0.5, 6.023)).area(6) failed,\
returned value != 4.012568.")
def test_point_positive_init_no_arguments(self):
"""Positive test of __init__ function without arguments."""
p = Point()
self.assertEqual(p.x, 0.0,
'Test of Point().x failed. Returned value != 0.0')
self.assertEqual(p.y, 0.0,
'Test of Point().y failed. Returned value != 0.0')
def test_point_positive_init_one_argument(self):
"""Positive test of __init__ function with one given argument."""
p = Point(3)
self.assertEqual(p.x, 3.0,
'Test of Point(3).x failed. Returned value != 3.0')
self.assertEqual(p.y, 0.0,
'Test of Point(3).y failed. Returned value != 0.0')
def test_point_positive_init_y_keyword_argument(self):
"""Positive test of __init__ function with one given argument y as keyword argument."""
p = Point(y=5)
self.assertEqual(p.x, 0.0,
'Test of Point(y=5).x failed. Returned value != 0.0')
self.assertEqual(p.y, 5.0,
'Test of Point(y=5).y failed. Returned value != 5.0')
def test_triangle_negative_init_wrong_argument_type(self):
"""Negative test of Triangle.__init__ method. Wrong type of arguments."""
with self.assertRaises(ValueError) as err:
Triangle('foo', Point(1, 3), 'bar')
self.assertEqual(
err.args[0],
"Given points belong to one line and can not define triangle.",
"Triangle('foo', Point(1, 3), 'bar') failed, no ValueError was raised."
)
with self.assertRaises(ValueError) as err:
Triangle(42, Point(1, 3), 21)
self.assertEqual(
err.args[0],
"Given points belong to one line and can not define triangle.",
"Triangle(42, Point(1, 3), 21) failed, no ValueError was raised."
)
def test_point_positive_x_and_y_getting(self):
"""Positive test of attribute getting."""
p = Point(x=6.67, y=5.34)
self.assertEqual(
p.x, 6.67,
"Test of Point(x=6.67, y=5.34).x failed, returned value != 6.67.")
self.assertEqual(
p.y, 5.34,
"Test of Point(x=6.67, y=5.34).y failed, returned value != 5.34.")
def test_point_negative_distance(self):
"""Negative test of Point.distance method."""
with self.assertRaises(ValueError) as err:
Point(1, 7).distance('foo')
self.assertEqual(
err.args[0],
"Wrong type of argument. Distance is calculated between two Point objects.",
"Test of Point(1, 7).distance('foo') failed, no ValueError was raised."
)
def get_point() -> Point:
"""
Ask user to type point coordinates and creates Point object.
:return: Point -- point defined with provided coordinates x and y
"""
while True:
point_pattern = re.compile('\d*[.]?\d*\s\d*[.]?\d*')
coordinates = input("Enter coordinates as follows: 'x y'\n> ").strip()
if point_pattern.fullmatch(coordinates):
x, y = coordinates.split(' ')
return Point(float(x), float(y))
else:
print('Wrong point coordinates. Try again.')
def test_point_positive_on_one_line(self):
"""Negative test of Point.on_one_line method."""
a = Point(1, 0)
b = Point(34, 0)
c = Point(42, 0)
self.assertTrue(
Point.on_one_line(a, b, c),
"Test of Point.on_one_line(a, b, c) failed, returned value != True."
)
d = Point(1, 2)
e = Point(34, 43)
f = Point(42, 54)
self.assertFalse(
Point.on_one_line(d, e, f),
"Test of Point.on_one_line(d, e, f) failed, returned value != False."
)
self.assertTrue(
Point.on_one_line(a),
"Test of Point.on_one_line(a) failed, returned value != True.")
def test_point_negative_init_wrong_type_argument(self):
"""
Negative test of __init__ function with one given argument of wrong types.
Checked argument types -> str, list, tuple, dict, set
"""
with self.assertRaises(ValueError) as err:
Point('five', 'three')
self.assertEqual(
err.args[0],
'Wrong value to define point. Both x and y must be int or float.',
"Test of Point('five', 'three') failed.")
with self.assertRaises(ValueError) as err:
Point(['five', 'two'])
self.assertEqual(
err.args[0],
'Wrong value to define point. Both x and y must be int or float.',
"Test of Point(['five', 'two']) failed.")
with self.assertRaises(ValueError) as err:
Point([5, 2])
self.assertEqual(
err.args[0],
'Wrong value to define point. Both x and y must be int or float.',
"Test of Point([5, 2]) failed.")
with self.assertRaises(ValueError) as err:
Point((1, 3))
self.assertEqual(
err.args[0],
'Wrong value to define point. Both x and y must be int or float.',
"Test of Point((1, 3)) failed.")
with self.assertRaises(ValueError) as err:
Point({'x': 3, 'y': 0.1})
self.assertEqual(
err.args[0],
'Wrong value to define point. Both x and y must be int or float.',
"Test of Point({'x': 3, 'y': 0.1}) failed.")
with self.assertRaises(ValueError) as err:
Point({3, 0.1})
self.assertEqual(
err.args[0],
'Wrong value to define point. Both x and y must be int or float.',
"Test of Point({3, 0.1}) failed.")
def test_triangle_positive_is_equilateral_property(self):
"""Positive test of Triangle.is_equilateral property."""
a = Point(-9, 10)
b = Point(-1, 4)
c = Point(3 * 3**0.5 - 5, 4 * 3**0.5 + 7)
t = Triangle(a, b, c)
self.assertTrue(
t.is_equilateral,
"Test of Triangle(Point(-9, 10), Point(-1, 4), Point(3 * 3 ** 0.5 - 5, 4 * 3 ** 0.5 + 7))\
failed, returned value != True.")
a = Point(-9, 21)
b = Point(-1, 4)
c = Point(3 * 3**0.5 - 5, 4 * 3**0.5 + 7)
t = Triangle(a, b, c)
self.assertFalse(
t.is_equilateral,
"Test of Triangle(Point(-9, 21), Point(-1, 4), Point(3 * 3 ** 0.5 - 5, 4 * 3 ** 0.5 + 7))\
failed, returned value != False.")
def test_triangle_positive_is_isosceles_property(self):
"""Positive test of Triangle.is_isosceles property."""
a = Point(-2, 0)
b = Point(2, 0)
c = Point(0, 4)
t = Triangle(a, b, c)
self.assertTrue(
t.is_isosceles,
"Test of Triangle(Point(-2, 0), Point(2, 0), Point(0, 4)) failed, returned value != True."
)
d = Point(-2, 45)
e = Point(2, 0)
f = Point(0, 4)
g = Triangle(d, e, f)
self.assertFalse(
g.is_isosceles,
"Test of Triangle(Point(-2, 45), Point(2, 0), Point(0, 4)) failed, returned value != False."
)