removed proxy, bridge, template, and strategy patterns as they were too abstract to offer much use.
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@@ -1,93 +0,0 @@
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from unittest import TestCase
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from pypatterns.structural.bridge import Bridge
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class BridgeTestCase(TestCase):
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"""
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Unit testing class for the Bridge class.
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"""
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def setUp(self):
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"""
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Initialize testing data.
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"""
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class DrawingAPI(object):
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def __init__(self): pass
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def draw_circle(self): pass
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def draw_rectangle(self): pass
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class DrawingAPI1(DrawingAPI):
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def draw_circle(self):
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return 'draw circle 1'
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def draw_rectangle(self):
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return 'draw rectangle 1'
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class DrawingAPI2(DrawingAPI):
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def draw_circle(self):
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return 'draw circle 2'
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def draw_rectangle(self):
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return 'draw rectangle 2'
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class Shape(Bridge):
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def draw(self): pass
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def do_something_high_level(self): pass
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class CircleShape(Shape):
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def draw(self):
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return self.implementor.draw_circle()
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def do_something_high_level(self):
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return 'high level circle'
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class RectangleShape(Shape):
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def draw(self):
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return self.implementor.draw_rectangle()
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def do_something_high_level(self):
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return 'high level rectangle'
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self.drawing_api_one = DrawingAPI1()
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self.drawing_api_two = DrawingAPI2()
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self.circle_shape_one = CircleShape(self.drawing_api_one)
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self.circle_shape_two = CircleShape(self.drawing_api_two)
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self.rectangle_shape_one = RectangleShape(self.drawing_api_one)
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self.rectangle_shape_two = RectangleShape(self.drawing_api_two)
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def test_init(self):
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"""
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Test the __init__ method.
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@raise AssertionError: If the test fails.
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"""
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self.assertEquals(self.drawing_api_one, self.circle_shape_one.implementor)
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self.assertEquals(self.drawing_api_two, self.circle_shape_two.implementor)
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self.assertEquals(self.drawing_api_one, self.rectangle_shape_one.implementor)
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self.assertEquals(self.drawing_api_two, self.rectangle_shape_two.implementor)
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def test_implementation(self):
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"""
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Test an implementation of the bridge pattern
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@raise AssertionError: If the test fails.
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"""
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self.assertEquals('draw circle 1', self.circle_shape_one.draw())
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self.assertEquals('draw circle 2', self.circle_shape_two.draw())
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self.assertEquals('draw rectangle 1', self.rectangle_shape_one.draw())
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self.assertEquals('draw rectangle 2', self.rectangle_shape_two.draw())
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self.assertEquals('high level circle', self.circle_shape_one.do_something_high_level())
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self.assertEquals('high level circle', self.circle_shape_two.do_something_high_level())
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self.assertEquals('high level rectangle', self.rectangle_shape_one.do_something_high_level())
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self.assertEquals('high level rectangle', self.rectangle_shape_two.do_something_high_level())
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@@ -1,65 +0,0 @@
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from unittest import TestCase
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from pypatterns.structural.proxy import Proxy
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class ProxyTestCase(TestCase):
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"""
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Unit testing class for the Proxy class.
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"""
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def setUp(self):
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"""
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Initialize testing data.
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"""
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class Car(object):
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def drive_car(self):
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return 'drive car'
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class Driver(object):
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def __init__(self, age):
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self.age = age
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self.car = Car()
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self.driver = Driver(17)
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def test_valid_proxy(self):
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"""
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Test a Proxy class following the same interface as the subject.
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@raise AssertionError: If the test fails.
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"""
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class ProxyCar(Proxy):
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def __init__(self, subject, driver):
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super().__init__(subject)
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self.driver = driver
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def drive_car(self):
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if self.driver.age > 16:
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return self._subject.drive_car()
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else:
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return 'Driver is too young to drive'
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try:
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proxy = ProxyCar(self.car, self.driver)
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except AttributeError:
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raise AssertionError()
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else:
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self.assertEqual('drive car', proxy.drive_car())
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proxy.driver.age = 15
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self.assertEqual('Driver is too young to drive', proxy.drive_car())
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def test_invalid_proxy(self):
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"""
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Test a Proxy class that is not following the same interface as the subject.
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@raise AssertionError: If the test fails.
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"""
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class ProxyCar(Proxy):
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def __init__(self, subject, driver):
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super().__init__(subject)
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self.driver = driver
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self.assertRaises(AttributeError, lambda: ProxyCar(self.car, self.driver))
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