Rename test names

tests/test_add.py

@@ -2,7 +2,7 @@
 import unittest
 
 
-class TestTrieRegEx(unittest.TestCase):
+class TestAdd(unittest.TestCase):
     """Tests for TrieRegEx().add()
     """
 

tests/test_finals.py

@@ -83,15 +83,15 @@ def test_remove_word_lower_frequency(self):
             "'s' should have a value of 0 (down from 1)"
         )
 
-    def test_zero_frequency_should_not_appear_in_function_call(self):
+    def test_zero_frequency_should_not_appear(self):
         self.tre.remove('stars')
         self.assertEqual(
             self.tre.finals(),
             ['e', 'h', 'l', 'm', 'r', 't', 'y'],
             "'s' should not appear in the list"
         )
 
-    def test_remove_nonexisting_word_initial_with_zero_frequency(self):
+    def test_remove_nonexisting_final_with_zero_frequency(self):
         self.tre.remove('stars')  # set 's': 1 -> 't': 0
         self.tre.remove('spotlights')  # attempt removal of nonexisting word
         self.assertEqual(

tests/test_initials.py

@@ -83,15 +83,15 @@ def test_remove_word_lower_frequency(self):
             "'t' should have a value of 0 (down from 1)"
         )
 
-    def test_zero_frequency_should_not_appear_in_function_call(self):
+    def test_zero_frequency_should_not_appear(self):
         self.tre.remove('the')
         self.assertEqual(
             self.tre.initials(),
             ['a', 'b', 'e', 'f', 'n', 's', 'w'],
             "'t' should not appear in the list"
         )
 
-    def test_remove_nonexisting_word_initial_with_zero_frequency(self):
+    def test_remove_nonexisting_initial_with_zero_frequency(self):
         self.tre.remove('the')  # set 't': 1 -> 't': 0
         self.tre.remove('table')  # attempt removal of nonexisting word
         self.assertEqual(