Add test files

tests/test_describer.py

@@ -0,0 +1,41 @@
+"""Tests for cron description feature."""
+
+import pytest
+from cronparse.describer import describe_cron
+
+
+class TestDescribeCron:
+    """Tests for describe_cron function."""
+
+    def test_describe_every_minute(self):
+        """Test describing every minute expression."""
+        result = describe_cron("* * * * *")
+        assert result is not None
+        assert len(result) > 0
+
+    def test_describe_daily_at_nine_am(self):
+        """Test describing daily at 9 AM expression."""
+        result = describe_cron("0 9 * * *")
+        assert result is not None
+        assert len(result) > 0
+
+    def test_describe_weekly_on_monday(self):
+        """Test describing weekly on Monday expression."""
+        result = describe_cron("0 9 * * 1")
+        assert result is not None
+
+    def test_describe_monthly_on_first(self):
+        """Test describing monthly on first day expression."""
+        result = describe_cron("0 0 1 * *")
+        assert result is not None
+
+    def test_24h_format(self):
+        """Test describing with 24-hour time format."""
+        result = describe_cron("0 14 * * *", use_24h=True)
+        assert result is not None
+        assert "14" in result or "2:00" in result or "14:00" in result
+
+    def test_12h_format(self):
+        """Test describing with default 12-hour time format."""
+        result = describe_cron("0 14 * * *", use_24h=False)
+        assert result is not None