product

tests/test_file_monitor.py

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+#!/usr/bin/env python3
+"""
+Unit tests for file monitor module.
+"""
+
+import pytest
+from sftp.file_monitor import FileMonitor
+
+
+class TestFileMonitor:
+    """Test FileMonitor functionality."""
+
+    def test_parse_filename_valid(self):
+        """Test parsing valid ACH filename."""
+        filename = 'ACH_99944_05122025102947_001.txt'
+        result = FileMonitor.parse_filename(filename)
+
+        assert result['filename'] == 'ACH_99944_05122025102947_001.txt'
+        assert result['branch'] == '99944'
+        assert result['day'] == '05'
+        assert result['month'] == '12'
+        assert result['year'] == '2025'
+        assert result['hour'] == '10'
+        assert result['minute'] == '29'
+        assert result['second'] == '47'
+        assert result['sequence'] == '001'
+
+    def test_parse_filename_another_date(self):
+        """Test parsing filename with different date."""
+        filename = 'ACH_12345_19012026103217_002.txt'
+        result = FileMonitor.parse_filename(filename)
+
+        assert result['branch'] == '12345'
+        assert result['day'] == '19'
+        assert result['month'] == '01'
+        assert result['year'] == '2026'
+        assert result['sequence'] == '002'
+        assert result['timestamp'] == '19/01/2026 10:32:17'
+
+    def test_parse_filename_invalid(self):
+        """Test parsing invalid filename."""
+        filename = 'invalid_filename.txt'
+        result = FileMonitor.parse_filename(filename)
+
+        assert result == {}
+
+    def test_parse_filename_invalid_extension(self):
+        """Test parsing filename with wrong extension."""
+        filename = 'ACH_99944_05122025102947_001.csv'
+        result = FileMonitor.parse_filename(filename)
+
+        assert result == {}
+
+    def test_parse_filename_missing_parts(self):
+        """Test parsing filename with missing parts."""
+        filename = 'ACH_99944_05122025_001.txt'  # Missing time parts
+        result = FileMonitor.parse_filename(filename)
+
+        assert result == {}
+
+
+if __name__ == '__main__':
+    pytest.main([__file__, '-v'])