From fd6f6436a5cc439a1e08502fef08334aea6668fa Mon Sep 17 00:00:00 2001
From: "Italo A. de Abreu" <italo.alves.abreu@gmail.com>
Date: Wed, 13 Nov 2024 13:14:07 -0300
Subject: [PATCH] Adjust list index out of range error cron(00 4 ? * 3-1 )

---
 src/pyawscron/awscron.py | 10 ++++++++--
 tests/next_tests.py      | 31 ++++++++++++++++++++++++++++++-
 2 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/src/pyawscron/awscron.py b/src/pyawscron/awscron.py
index 6ff49ad..07ea663 100644
--- a/src/pyawscron/awscron.py
+++ b/src/pyawscron/awscron.py
@@ -112,8 +112,14 @@ def __parse_one_rule(self, rule, min, max):
                 parts = s.split('-')
                 start = int(parts[0])
                 end = int(parts[1])
-                for i in range(start, end + 1, 1):
-                    allows.append(i)
+                if start <= end:
+                    for i in range(start, end + 1):
+                        allows.append(i)
+                else:
+                    for i in range(start, 8):
+                        allows.append(i)
+                    for i in range(1, end + 1):
+                        allows.append(i)
             else:
                 allows.append(int(s))
         allows.sort()
diff --git a/tests/next_tests.py b/tests/next_tests.py
index ca90d49..63d64e5 100644
--- a/tests/next_tests.py
+++ b/tests/next_tests.py
@@ -385,6 +385,35 @@ def test_generate_multiple_next_14(self):
             print(f"Result: {dt}\tExpected: {expected}\n")
             self.assertEqual(expected, str(dt))
 
+    def test_generate_multiple_next_occurences15(self):
+        """
+        Tests the generation of multiple next occurrences 
+        from a specific CRON expression. Ensures that
+        days_of_week are within the expected range.
+        :return: None
+        """
+        cron = '00 4 ? * 3-1 *'
+        expected_list= ['2024-11-14 04:00:00+00:00',
+                        '2024-11-15 04:00:00+00:00',
+                        '2024-11-16 04:00:00+00:00',
+                        '2024-11-17 04:00:00+00:00',
+
+                        '2024-11-19 04:00:00+00:00',
+                        '2024-11-20 04:00:00+00:00',
+                        '2024-11-21 04:00:00+00:00',
+                        '2024-11-22 04:00:00+00:00',
+                        '2024-11-23 04:00:00+00:00',
+                        '2024-11-24 04:00:00+00:00']
+        cron = AWSCron(cron)
+        dt = datetime.datetime(2024, 11, 13, 12, 30, 57, tzinfo=datetime.timezone.utc)
+        results = []
+        for expected in expected_list:
+            print(f"Input {cron}, occurrence: {dt}")
+            dt = cron.occurrence(dt).next()
+            results.append(str(dt))
+            print(f"Result: {dt}\tExpected: {expected}\n")
+            self.assertEqual(expected, str(dt))
+
 
 if __name__ == '__main__':
-    unittest.main()
\ No newline at end of file
+    unittest.main()