add tests for invalid schedules

tubearchivist/task/tests/test_src/test_config_schedule.py

@@ -0,0 +1,68 @@
+"""test schedule parsing"""
+
+# flake8: noqa: E402
+
+import os
+
+import django
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "config.settings")
+django.setup()
+
+import pytest
+from task.src.config_schedule import CrontabValidator
+
+INCORRECT_CRONTAB = [
+    "0 0 * * *",
+    "0 0",
+    "0",
+]
+
+
+@pytest.mark.parametrize("invalid_value", INCORRECT_CRONTAB)
+def test_invalid_len(invalid_value):
+    """raise error on invalid crontab"""
+    validator = CrontabValidator()
+    with pytest.raises(ValueError, match="three cron schedule fields"):
+        validator.validate_cron(invalid_value)
+
+
+NONE_INT_MINUTE = [
+    "* * *",
+    "0,30 * *",
+    "0,1,2 * *",
+    "-1 * *",
+]
+
+
+@pytest.mark.parametrize("invalid_value", NONE_INT_MINUTE)
+def test_none_int_crontabs(invalid_value):
+    """raise error on invalid crontab"""
+    validator = CrontabValidator()
+    with pytest.raises(ValueError, match="Must be an integer."):
+        validator.validate_cron(invalid_value)
+
+
+INVALID_MINUTE = ["60 * *", "61 * *"]
+
+
+@pytest.mark.parametrize("invalid_value", INVALID_MINUTE)
+def test_invalid_minute(invalid_value):
+    """raise error on invalid crontab"""
+    validator = CrontabValidator()
+    with pytest.raises(ValueError, match="Must be between 0 and 59."):
+        validator.validate_cron(invalid_value)
+
+
+INVALID_CRONTAB = [
+    "0 /1 *",
+    "0 0/1 *",
+]
+
+
+@pytest.mark.parametrize("invalid_value", INVALID_CRONTAB)
+def test_invalid_crontab(invalid_value):
+    """raise error on invalid crontab"""
+    validator = CrontabValidator()
+    with pytest.raises(ValueError, match="invalid crontab"):
+        validator.validate_cron(invalid_value)