tests: add some edge tests

Author: sozelfist

src/string/anagram.rs

@@ -89,9 +89,19 @@ mod tests {
         single_char_same: ("z", "Z", Ok(true)),
         single_char_diff: ("g", "h", Ok(false)),
         valid_anagram_lowercase: ("cheater", "teacher", Ok(true)),
-        valid_anagram_with_spaces: ("Madam Curie", "Radium came", Ok(true)),
+        valid_anagram_with_spaces: ("madam curie", "radium came", Ok(true)),
         valid_anagram_mixed_cases: ("Satan", "Santa", Ok(true)),
-        valid_anagram_awesome: ("Anna Madrigal", "A man and a girl", Ok(true)),
+        valid_anagram_with_spaces_and_mixed_cases: ("Anna Madrigal", "A man and a girl", Ok(true)),
+        new_york_times: ("New York Times", "monkeys write", Ok(true)),
+        church_of_scientology: ("Church of Scientology", "rich chosen goofy cult", Ok(true)),
+        mcdonalds_restaurants: ("McDonald's restaurants", "Uncle Sam's standard rot", Err(AnagramError::NonAlphabeticCharacter)),
+        coronavirus: ("coronavirus", "carnivorous", Ok(true)),
+        synonym_evil: ("evil", "vile", Ok(true)),
+        synonym_gentleman: ("a gentleman", "elegant man", Ok(true)),
+        antigram: ("restful", "fluster", Ok(true)),
+        sentences: ("William Shakespeare", "I am a weakish speller", Ok(true)),
+        part_of_speech_adj_to_verb: ("silent", "listen", Ok(true)),
+        anagrammatized: ("Anagrams", "Ars magna", Ok(true)),
         non_anagram: ("rat", "car", Ok(false)),
         invalid_anagram_with_special_char: ("hello!", "world", Err(AnagramError::NonAlphabeticCharacter)),
         invalid_anagram_with_numeric_chars: ("test123", "321test", Err(AnagramError::NonAlphabeticCharacter)),