Added isPandigital function

StringAlgorithms.py

@@ -1,7 +1,7 @@
 #Python/pyClasses/StringAlgorithms.py
 #Matthew Ellison
 # Created: 07-21-21
-#Modified: 07-21-21
+#Modified: 10-11-21
 #This file contains my library of string functions
 """
 	Copyright (C) 2021  Matthew Ellison
@@ -59,3 +59,24 @@ def isPalindrome(str: str) -> bool:
 		return True
 	else:
 		return False
+
+#Returns true if the string passed to it is a pandigital
+def isPandigitalFull(numStr: str, bottom: int, top: int) -> bool:
+	#Return false if top < bottom
+	if(top < bottom):
+		return False
+
+	#Return false if the wrong number of characters are in the string
+	if(len(numStr) != (top - bottom + 1)):
+		return False
+
+	#Make sure that all of the needed characters are in the string exactly one time
+	for cnt in range(bottom, top):
+		#Make sure there is exactly one of this number contained in the string
+		if(numStr.count(str(cnt)) != 1):
+			return False
+
+	#If the function has reached this part it has passed all of the falsifying tests
+	return True
+def isPandigital(str: str) -> bool:
+	return isPandigitalFull(str, 1, 9)

test/TestStringAlgorithms.py

@@ -1,7 +1,7 @@
 #Python/pyClasses/TestStringAlgorithms.py
 #Matthew Ellison
 # Created: 07-21-21
-#Modified: 07-21-21
+#Modified: 10-11-21
 #Tests for my library of number algorithms
 """
 	Copyright (C) 2021  Matthew Ellison
@@ -52,6 +52,43 @@ class TestStringAlgorithms(unittest.TestCase):
 		answer = StringAlgorithms.isPalindrome(str)
 		self.assertEqual(correctAnswer, answer, "isPalindrome failed the third test")
 
+	def testIsPandigital(self):
+		#Test 1
+		str = "123456789"
+		correctAnswer = True
+		answer = StringAlgorithms.isPandigital(str)
+		self.assertEqual(correctAnswer, answer, "isPandigital failed the first test")
+
+		#Test 2
+		str = "123"
+		correctAnswer = True
+		answer = StringAlgorithms.isPandigitalFull(str, 1, 3)
+		self.assertEqual(correctAnswer, answer, "isPandigital failed the second test")
+
+		#Test 3
+		str = "123"
+		correctAnswer = False
+		answer = StringAlgorithms.isPandigital(str)
+		self.assertEqual(correctAnswer, answer, "isPandigital failed the third test")
+
+		#Test 4
+		str = "123"
+		correctAnswer = False
+		answer = StringAlgorithms.isPandigitalFull(str, 3, 1)
+		self.assertEqual(correctAnswer, answer, "isPandigital failed the fourth test")
+
+		#Test 5
+		str = "1"
+		correctAnswer = True
+		answer = StringAlgorithms.isPandigitalFull(str, 1, 1)
+		self.assertEqual(correctAnswer, answer, "isPandigital failed the fifth test")
+
+		#Test 6
+		str = "112"
+		correctAnswer = False
+		answer = StringAlgorithms.isPandigitalFull(str, 1, 3)
+		self.assertEqual(correctAnswer, answer, "isPandigital failed the sixth test")
+
 
 #Run the unit test if the script is called
 if __name__ == "__main__":