Fixes #559 by Paola L. & Sydney F.

num2words/lang_AM.py

@@ -98,6 +98,8 @@ def merge(self, lpair, rpair):
             return '%s %s' % (ltext, rtext), lnum + rnum
         elif rnum > lnum:
             return '%s %s' % (ltext, rtext), lnum * rnum
+        # Default case: safely add if nothing else matches
+        return '%s %s' % (ltext, rtext), lnum + rnum
 
     def to_ordinal(self, value):
         self.verify_ordinal(value)

num2words/lang_IT.py

@@ -201,13 +201,16 @@ def to_currency(self, val, currency='EUR', cents=True, separator=' e',
 
 
 def phonetic_contraction(string):
+    # Skip contraction if string contains "diciotto" to avoid breaking it
+    if "diciotto" in string:
+        return string
+
     return (string
-            .replace("oo", "o")  # ex. "centootto"
-            .replace("ao", "o")  # ex. "settantaotto"
-            .replace("io", "o")  # ex. "ventiotto"
-            .replace("au", "u")  # ex. "trentauno"
-            .replace("iu", "u")  # ex. "ventiunesimo"
-            )
+            .replace("oo", "o")   # centootto → centotto
+            .replace("ao", "o")   # settantaotto → settantotto
+            .replace("io", "o")   # ventiotto → ventotto
+            .replace("au", "u")   # trentauno → trentuno
+            .replace("iu", "u"))  # ventiuno → ventuno
 
 
 def exponent_length_to_string(exponent_length):

tests/test_am.py

@@ -92,3 +92,17 @@ def test_to_year(self):
                          'አንድ ሺህ ስድሳ ስድስት')
         self.assertEqual(num2words(1865, lang='am', to='year'),
                          'አሥራ ስምንት መቶ ስድሳ አምስት')
+
+    def test_cardinal_trigger_merge_success(self):
+        try:
+            num2words(1210, lang='am')
+        except Exception as e:
+            self.fail(f"num2words(1210, lang='am') raised an unexpected exception: {e}")
+
+    def test_cardinal_large_numbers_success(self):
+        try:
+            num2words(1000000, lang='am')
+            num2words(1000000000, lang='am')
+        except Exception as e:
+            self.fail(f"num2words(large number, lang='am') raised an unexpected exception: {e}")
+

tests/test_it.py

@@ -100,25 +100,49 @@ def test_0(self):
     def test_1_to_10(self):
         self.assertEqual(num2words(1, lang="it"), "uno")
         self.assertEqual(num2words(2, lang="it"), "due")
+        self.assertEqual(num2words(3, lang="it"), "tre")
+        self.assertEqual(num2words(4, lang="it"), "quattro")
+        self.assertEqual(num2words(5, lang="it"), "cinque")
+        self.assertEqual(num2words(6, lang="it"), "sei")
         self.assertEqual(num2words(7, lang="it"), "sette")
+        self.assertEqual(num2words(8, lang="it"), "otto")
+        self.assertEqual(num2words(9, lang="it"), "nove")
         self.assertEqual(num2words(10, lang="it"), "dieci")
 
     def test_11_to_19(self):
         self.assertEqual(num2words(11, lang="it"), "undici")
+        self.assertEqual(num2words(12, lang="it"), "dodici")
         self.assertEqual(num2words(13, lang="it"), "tredici")
+        self.assertEqual(num2words(14, lang="it"), "quattordici")
         self.assertEqual(num2words(15, lang="it"), "quindici")
         self.assertEqual(num2words(16, lang="it"), "sedici")
+        self.assertEqual(num2words(17, lang="it"), "diciassette")
+        self.assertEqual(num2words(18, lang="it"), "diciotto")
         self.assertEqual(num2words(19, lang="it"), "diciannove")
 
     def test_20_to_99(self):
         self.assertEqual(num2words(20, lang="it"), "venti")
         self.assertEqual(num2words(21, lang="it"), "ventuno")
+        self.assertEqual(num2words(22, lang="it"), "ventidue")
         self.assertEqual(num2words(23, lang="it"), "ventitré")
+        self.assertEqual(num2words(24, lang="it"), "ventiquattro")
+        self.assertEqual(num2words(25, lang="it"), "venticinque")
+        self.assertEqual(num2words(26, lang="it"), "ventisei")
+        self.assertEqual(num2words(27, lang="it"), "ventisette")
         self.assertEqual(num2words(28, lang="it"), "ventotto")
+        self.assertEqual(num2words(29, lang="it"), "ventinove")
+        self.assertEqual(num2words(30, lang="it"), "trenta")
         self.assertEqual(num2words(31, lang="it"), "trentuno")
+        self.assertEqual(num2words(32, lang="it"), "trentadue")
+        self.assertEqual(num2words(33, lang="it"), "trentatré")
         self.assertEqual(num2words(40, lang="it"), "quaranta")
+        self.assertEqual(num2words(50, lang="it"), "cinquanta")
         self.assertEqual(num2words(66, lang="it"), "sessantasei")
+        self.assertEqual(num2words(70, lang="it"), "settanta")
+        self.assertEqual(num2words(81, lang="it"), "ottantuno")
+        self.assertEqual(num2words(88, lang="it"), "ottantotto")
         self.assertEqual(num2words(92, lang="it"), "novantadue")
+        self.assertEqual(num2words(99, lang="it"), "novantanove")
 
     def test_100_to_999(self):
         self.assertEqual(num2words(100, lang="it"), "cento")
@@ -152,6 +176,18 @@ def test_1000_to_9999(self):
             "cinquecentoventitremilaquattrocentocinquantasei"
         )
 
+    def test_ending_in_18(self):
+        self.assertEqual(num2words(118, lang="it"), "centodiciotto")
+        self.assertEqual(num2words(218, lang="it"), "duecentodiciotto")
+        self.assertEqual(num2words(318, lang="it"), "trecentodiciotto")
+        self.assertEqual(num2words(418, lang="it"), "quattrocentodiciotto")
+        self.assertEqual(num2words(518, lang="it"), "cinquecentodiciotto")
+        self.assertEqual(num2words(618, lang="it"), "seicentodiciotto")
+        self.assertEqual(num2words(718, lang="it"), "settecentodiciotto")
+        self.assertEqual(num2words(818, lang="it"), "ottocentodiciotto")
+        self.assertEqual(num2words(918, lang="it"), "novecentodiciotto")
+
+
     def test_big(self):
         self.assertEqual(num2words(1000000, lang="it"), "un milione")
         self.assertEqual(num2words(1000007, lang="it"), "un milione e sette")