Fix & test StringHelper()

src/clean_code/MathHelper.py

@@ -1,3 +1,5 @@
+import sys
+
 class MathHelper:
 
     def find_largest_number_in_list(self, list_with_numbers):
@@ -6,6 +8,7 @@ def find_largest_number_in_list(self, list_with_numbers):
         :param list_with_numbers:
         :return: largest number in list, -sys.maxsize -1 for empty list
         """
-        return 0
+        max_number = max(list_with_numbers, default=-sys.maxsize-1)
+        return max_number
 
 

src/clean_code/StringHelper.py

@@ -7,9 +7,13 @@ def strings_are_anagrams(self, first_word, second_word):
         :param second_word:
         :return: True if the words are an Anagram, False otherwise
         """
+        if type(first_word) is not str or type(second_word) is not str:
+            raise TypeError('Not a string')
+
         if len(first_word) != len(second_word):
             return False
-        for letter in first_word:
-            if letter not in second_word:
+
+        for letter in first_word.lower():
+            if letter not in second_word.lower():
                 return False
-        return True
+            return True

src/clean_code/test_StringHelper.py

@@ -1 +1,33 @@
-#TODO: Please write a test for my Anagram function
+#TODO: Please write a test for my Anagram function
+
+import unittest
+from src.clean_code.StringHelper import StringHelper
+
+class Test(unittest.TestCase):
+
+    def setUp(self):
+        self.string_helper =  StringHelper()
+        self.anagram1 = "mary"
+        self.anagram2 = "amry"
+
+    def test_strings_are_anagrams_random_anagram(self):
+        result = self.string_helper.strings_are_anagrams(self.anagram1, self.anagram2)
+        self.assertTrue(result)
+
+    def test_strings_are_anagrams_empty_string(self):
+        example_string_1 = "Here comes dots"
+        example_string_2 = ""
+        result = self.string_helper.strings_are_anagrams(example_string_1, example_string_2)
+        self.assertFalse(result)
+
+    def test_strings_are_anagrams_anagram_capitalized(self):
+        anagram_capitalized = "Amry"
+        result = self.string_helper.strings_are_anagrams(self.anagram1, anagram_capitalized)
+        self.assertTrue(result)
+
+    def test_strings_are_anagrams_integer(self):
+        example_int = 2
+        self.assertRaises(TypeError, self.string_helper.strings_are_anagrams, self.anagram1, example_int )
+
+
+