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Scott_Submissions/BoundedInt.py

@@ -0,0 +1,46 @@
+class BoundedInt():
+    def __init__(self, i, min, max):
+        """
+        Create a bounded integer.
+
+        Args:
+            i (int): The initial value of the integer.
+            min (int): The minimum value of the integer.
+            max (int): The maximum value of the integer.
+        """
+        self.i = i
+        self.min = min
+        self.max = max
+    
+    def __int__(self):
+        """ 
+        Convert the bounded integer to int.
+
+        Returns:
+            int: The value of the bounded integer.
+        """
+        return self.i
+
+    def __add__(self, other):
+        if isinstance(other, BoundedInt):
+            if self.i + other.i > self.max:
+                raise ValueError("Addition exceeds maximum value")
+            return BoundedInt(self.i + other.i, self.min, self.max)
+        elif isinstance(other, int):
+            if self.i + other > self.max:
+                raise ValueError("Addition exceeds maximum value")
+            return BoundedInt(self.i + other, self.min, self.max)
+        else:
+            raise TypeError("Unsupported operand type")
+
+    def __sub__(self, other):
+        if isinstance(other, BoundedInt):
+            if self.i - other.i < self.min:
+                raise ValueError("Subtraction exceeds minimum value")
+            return BoundedInt(self.i - other.i, self.min, self.max)
+        elif isinstance(other, int):
+            if self.i - other < self.min:
+                raise ValueError("Subtraction exceeds minimum value")
+            return BoundedInt(self.i - other, self.min, self.max)
+        else:
+            raise TypeError("Unsupported operand type")

Scott_Submissions/BoundedIntTester.py

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+from BoundedInt import BoundedInt
+
+class BoundedIntTester:
+    def __init__(self):
+        pass
+
+    def test1(self):
+        bi1 = BoundedInt(0xdeadbeef, min = (0xdeadbeef-1), max = (0xdeadbeef+1))
+        if int(bi1) == 0xdeadbeef:
+            print(f"✅ Test 1 passed!")
+        else:
+            print(f"❌ Test 1 failed, int(bi1) = {int(bi1)}, expected 0xdeadbeef")
+
+    def test2(self):
+        """
+        Test that addition works for two BoundedInts, and throws an error if the bounds are exceeded.
+        """
+        bi2 = BoundedInt(1, min = 0, max = 1)
+        bi3 = BoundedInt(1, min = 0, max = 1)
+        try:
+            bi4 = bi2 + bi3 # 1 + 1 = 2, which is more than max = 1
+            print(f"❌ Test 2 failed!")
+        except ValueError as err:
+            print(f"✅ Test 2 passed!")
+
+    def test3(self):
+        """
+        Test that addition works for two BoundedInts, and throws an error if the bounds are exceeded.
+        """
+        bi4 = BoundedInt(1, min = 0, max = 1)
+        bi5 = BoundedInt(2, min = 0, max = -1)
+        try:
+            bi6 = bi4 - bi5 # 1 - 2 = (-1), which is less than min = 0
+            print(f"❌ Test 3 failed!")
+        except ValueError as err:
+            print(f"✅ Test 3 passed!")
+
+    def test4(self):
+        """
+        Test that addition works for a BoundedInt and a regular int, and throws an error if the bounds are exceeded.
+        """
+        bi7 = BoundedInt(1, min = 0, max = 1)
+        bi8 = 2
+        try:
+            bi9 = bi7 + bi8
+            print(f"❌ Test 4 failed!")
+        except ValueError as err:
+            print(f"✅ Test 4 passed!")
+
+    def test5(self):
+        """
+        Test that subtraction works for a BoundedInt and a regular int, and throws an error if the bounds are exceeded.
+        """
+        bi10 = BoundedInt(1, min = 0, max = 1)
+        bi11 = 2
+        try:
+            bi12 = bi10 - 11
+            print(f"❌ Test 5 failed!")
+        except ValueError as err:
+            print(f"✅ Test 5 passed!")
+
+tester = BoundedIntTester()
+tester.test1()
+tester.test2()
+tester.test3()
+tester.test4()
+tester.test5()

Scott_Submissions/HW6.py

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+########## This file only contains the question 2, 4, and 10. The rest is in the BoundedInt.py. ##########
+
+
+
+# 2. Modify the template to pass test 1, which checks that int() called on your class will return the value of i.
+
+# class BoundedInt():
+#     def __init__(self, i, min, max):
+#         """
+#         Create a bounded integer.
+
+#         Args:
+#             i (int): The initial value of the integer.
+#             min (int): The minimum value of the integer.
+#             max (int): The maximum value of the integer.
+#         """
+#         self.i = i
+#         self.min = min
+#         self.max = max
+    
+#     def __int__(self):
+#         """
+#         Convert the bounded integer to int.
+
+#         Returns:
+#             int: The value of the bounded integer.
+#         """
+#         return self.i
+
+
+
+# 4. In that reading material, there's a sentence that starts with "For instance, to evaluate the expression x + y, "... 
+# What do you think the types of x and y are? Guess, without checking first. 
+# What are they, actually? You can use the debugger's local window to find out.
+
+    # x might be an instance of a class that has defined the __add__() method
+    # And y is the object that is compatible with the x instance for the addition operation.
+
+class MyClass:
+    def __init__(self, value):
+        self.value = value
+
+    def __add__(self, other):
+        if isinstance(other, MyClass):
+            return MyClass(self.value + other.value)
+        elif isinstance(other, int):
+            return MyClass(self.value + other)
+        else:
+            raise TypeError("Unsupported operand type.")
+
+# Example usage
+obj1 = MyClass(5)
+obj2 = MyClass(10)
+result1 = obj1 + obj2  # Calls obj1.__add__(obj2)
+print(result1.value)  # Output: 15
+
+result2 = obj1 + 3  # Calls obj1.__add__(3)
+print(result2.value)  # Output: 8
+
+
+
+# 10. Think about how you would change the template so it could allow adding a BoundedInt to an emoji, 
+#       if there was a hypothetical function sentiment(emoji) which returned a floating point number from -10.0 to 10.0 
+#       which indicated whether the emoji was happy or sad. e.g. BoundedInt(1, min = 1, max = 10) + 😁 would raise ValueError.
+
+    # By adding the conceptional function 'sentiment(emoji)' in the '__add__()' method
+    # The sentiment will analyze the happy level of the input emoji and return a floating number from a number range
+        # For example:
+            # 10 for a 😊 smiley face
+            # -10 for a frowny face
+            # 0 for a 🍕
+    # The protential code can be like this:
+'''
+        elif isinstance(other, str) and sentiment(other) < 0:
+            aise ValueError("Cannot add a BoundedInt to a sad emoji")   
+        '''