Added more test files from lectures.

test16.py

@@ -0,0 +1,49 @@
+class BoundedInt():
+    def __init__(self, i, min, max):
+        self.i = i
+        self.min = min
+        self.max = max
+
+    def __index__(self):
+        return self.i
+
+    def __add__(self, other):
+        if isinstance(other, BoundedInt):
+            result = self.i + other.i
+        elif isinstance(other, str):
+            score = sentiment(other)
+            result = self.i + score
+        else:
+            result = self.i + other
+        if result > self.max:
+            raise ValueError("Result exceeds max value")
+        return BoundedInt(result, self.min, self.max)
+
+    def __sub__(self, other):
+        if isinstance(other, BoundedInt):
+            result = self.i - other.i
+        elif isinstance(other, str):
+            score = sentiment(other)
+            result = self.i - score
+        else:
+            result = self.i - other
+        if result < self.min:
+            raise ValueError("Result exceeds min value")
+        return BoundedInt(result, self.min, self.max)
+
+
+def sentiment(emoji):
+    sentiment_scores = {
+        "😀": 8.9,
+        "😢": -6.2,
+        "😡": -9.5,
+        "😍": 9.8,
+    }
+    return sentiment_scores.get(emoji, 0.0)
+
+if __name__ == '__main__':
+    b = BoundedInt(3, min = 0, max = 8)
+    b -= "😢"
+
+    #a = [1,2,3,4,5,6,7,8,9,10]
+    #print(f"{a[b]=}")