[SELF-19] ACE Entry generator tests

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  "model": "claude-sonnet-4-20250514",
  "status": "success",
  "transport": "anthropic_api",
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  "response_text": "I'll create comprehensive unit tests for the ACE entry generator. Let me first examine the source file to understand the structure and then create thorough tests.\n\n<file_path>c8_platform/tests/test_ace_entry.py</file_path>\n<file_text>\"\"\"\nUnit tests for ACE Entry generator functionality.\nTests all entry types, ISF filings, and edge cases.\n\"\"\"\n\nimport pytest\nfrom unittest.mock import Mock, patch, MagicMock\nfrom datetime import datetime, date\nfrom decimal import Decimal\n\nfrom c8_platform.declaration_engine.ace_entry import (\n    ACEEntryGenerator,\n    EntryType,\n    ACEEntry,\n    ISFEntry,\n    EntryLineItem,\n    EntryValidationError\n)\nfrom c8_platform.models import (\n    Shipment,\n    ShipmentLineItem,\n    Importer,\n    Broker,\n    Port\n)\n\n\nclass TestACEEntryGenerator:\n    \"\"\"Test suite for ACE Entry Generator.\"\"\"\n\n    @pytest.fixture\n    def mock_importer(self):\n        \"\"\"Mock importer data.\"\"\"\n        importer = Mock(spec=Importer)\n        importer.id = \"IMP001\"\n        importer.name = \"Test Importer Corp\"\n        importer.ein = \"12-3456789\"\n        importer.address = \"123 Main St\"\n        importer.city = \"New York\"\n        importer.state = \"NY\"\n        importer.zip_code = \"10001\"\n        importer.country = \"US\"\n        return importer\n\n    @pytest.fixture\n    def mock_broker(self):\n        \"\"\"Mock broker data.\"\"\"\n        broker = Mock(spec=Broker)\n        broker.id = \"BRK001\"\n        broker.name = \"Test Customs Broker LLC\"\n        broker.license_number = \"12345\"\n        broker.port_code = \"2704\"  # New York\n        broker.address = \"456 Broker Ave\"\n        broker.city = \"New York\"\n        broker.state = \"NY\"\n        broker.zip_code = \"10002\"\n        return broker\n\n    @pytest.fixture\n    def mock_port(self):\n        \"\"\"Mock port data.\"\"\"\n        port = Mock(spec=Port)\n        port.code = \"2704\"\n        port.name = \"New York, NY\"\n        port.district = \"10\"\n        return port\n\n    @pytest.fixture\n    def mock_line_item(self):\n        \"\"\"Mock shipment line item.\"\"\"\n        item = Mock(spec=ShipmentLineItem)\n        item.id = \"LINE001\"\n        item.description = \"Test Product\"\n        item.hs_code = \"1234.56.7890\"\n        item.quantity = Decimal(\"100.00\")\n        item.unit_of_measure = \"EA\"\n        item.unit_value = Decimal(\"10.50\")\n        item.total_value = Decimal(\"1050.00\")\n        item.country_of_origin = \"CN\"\n        item.manufacturer = \"Test Manufacturer\"\n        item.weight_kg = Decimal(\"50.00\")\n        return item\n\n    @pytest.fixture\n    def mock_shipment(self, mock_importer, mock_broker, mock_line_item):\n        \"\"\"Mock shipment data.\"\"\"\n        shipment = Mock(spec=Shipment)\n        shipment.id = \"SHIP001\"\n        shipment.reference_number = \"REF123456\"\n        shipment.bill_of_lading = \"BOL789\"\n        shipment.vessel_name = \"TEST VESSEL\"\n        shipment.voyage_number = \"V001\"\n        shipment.port_of_loading = \"CNSHA\"\n        shipment.port_of_discharge = \"USNYC\"\n        shipment.estimated_arrival = datetime(2024, 3, 15, 10, 0)\n        shipment.importer = mock_importer\n        shipment.broker = mock_broker\n        shipment.line_items = [mock_line_item]\n        shipment.total_value = Decimal(\"1050.00\")\n        shipment.freight_charges = Decimal(\"150.00\")\n        shipment.insurance_charges = Decimal(\"25.00\")\n        return shipment\n\n    @pytest.fixture\n    def generator(self):\n        \"\"\"ACE Entry Generator instance.\"\"\"\n        return ACEEntryGenerator()\n\n    def test_entry_type_01_consumption(self, generator, mock_shipment):\n        \"\"\"Test Entry Type 01 - Consumption Entry.\"\"\"\n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            with patch.object(generator, '_calculate_duties') as mock_duties:\n                mock_duties.return_value = {\n                    \"total_duty\": Decimal(\"52.50\"),\n                    \"line_duties\": [{\"line_id\": \"LINE001\", \"duty\": Decimal(\"52.50\")}]\n                }\n                \n                entry = generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n                \n                assert entry.entry_type == \"01\"\n                assert entry.entry_number is not None\n                assert entry.importer_number == \"12-3456789\"\n                assert entry.port_code == \"2704\"\n                assert entry.total_entered_value == Decimal(\"1050.00\")\n                assert entry.total_duty == Decimal(\"52.50\")\n                assert len(entry.line_items) == 1\n\n    def test_entry_type_06_warehouse(self, generator, mock_shipment):\n        \"\"\"Test Entry Type 06 - Warehouse Entry.\"\"\"\n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            entry = generator.generate_entry(mock_shipment, EntryType.WAREHOUSE)\n            \n            assert entry.entry_type == \"06\"\n            assert entry.total_duty == Decimal(\"0.00\")  # No duty for warehouse\n            assert entry.warehouse_code is not None\n\n    def test_entry_type_11_immediate_delivery(self, generator, mock_shipment):\n        \"\"\"Test Entry Type 11 - Immediate Delivery.\"\"\"\n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            entry = generator.generate_entry(mock_shipment, EntryType.IMMEDIATE_DELIVERY)\n            \n            assert entry.entry_type == \"11\"\n            assert entry.delivery_date is not None\n            assert entry.bond_type == \"IMMEDIATE_DELIVERY\"\n\n    def test_entry_type_46_foreign_trade_zone(self, generator, mock_shipment):\n        \"\"\"Test Entry Type 46 - Foreign Trade Zone Entry.\"\"\"\n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            entry = generator.generate_entry(mock_shipment, EntryType.FOREIGN_TRADE_ZONE)\n            \n            assert entry.entry_type == \"46\"\n            assert entry.ftz_number is not None\n            assert entry.ftz_status == \"PRIVILEGED\"\n\n    def test_entry_type_86_vessel_repair(self, generator, mock_shipment):\n        \"\"\"Test Entry Type 86 - Vessel Repair Entry.\"\"\"\n        # Modify shipment for vessel repair scenario\n        mock_shipment.vessel_repair = True\n        mock_shipment.repair_description = \"Engine maintenance\"\n        \n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            entry = generator.generate_entry(mock_shipment, EntryType.VESSEL_REPAIR)\n            \n            assert entry.entry_type == \"86\"\n            assert entry.repair_description == \"Engine maintenance\"\n\n    def test_isf_10_plus_5_filing(self, generator, mock_shipment):\n        \"\"\"Test ISF-10 + ISF-5 Importer Security Filing.\"\"\"\n        with patch.object(generator, '_get_vessel_info') as mock_vessel:\n            mock_vessel.return_value = {\n                \"imo_number\": \"1234567\",\n                \"flag_state\": \"PA\",\n                \"vessel_operator\": \"Test Shipping Line\"\n            }\n            \n            isf_entry = generator.generate_isf_filing(mock_shipment)\n            \n            # ISF-10 Data Elements\n            assert isf_entry.importer_of_record == \"Test Importer Corp\"\n            assert isf_entry.consignee == \"Test Importer Corp\"\n            assert isf_entry.seller == mock_shipment.line_items[0].manufacturer\n            assert isf_entry.buyer == \"Test Importer Corp\"\n            assert isf_entry.ship_to_party == \"Test Importer Corp\"\n            assert isf_entry.country_of_origin == \"CN\"\n            assert isf_entry.commodity_hs_code == \"1234.56.7890\"\n            assert isf_entry.container_stuffing_location == \"CNSHA\"\n            assert isf_entry.consolidator == \"Test Shipping Line\"\n            assert isf_entry.importer_security_filing_agent == \"Test Customs Broker LLC\"\n            \n            # ISF-5 Data Elements\n            assert isf_entry.booking_party == \"Test Shipping Line\"\n            assert isf_entry.foreign_port_of_lading == \"CNSHA\"\n            assert isf_entry.place_of_delivery == \"USNYC\"\n            assert isf_entry.ship_to_location == \"USNYC\"\n            assert isf_entry.commodity_ship_to_party == \"Test Importer Corp\"\n\n    def test_entry_summary_7501_mapping(self, generator, mock_shipment):\n        \"\"\"Test Entry Summary fields mapping to Form 7501.\"\"\"\n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            with patch.object(generator, '_calculate_duties') as mock_duties:\n                mock_duties.return_value = {\n                    \"total_duty\": Decimal(\"52.50\"),\n                    \"line_duties\": [{\"line_id\": \"LINE001\", \"duty\": Decimal(\"52.50\")}]\n                }\n                \n                entry = generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n                form_7501 = generator.map_to_form_7501(entry)\n                \n                # Header information\n                assert form_7501[\"entry_number\"] == entry.entry_number\n                assert form_7501[\"entry_type\"] == \"01\"\n                assert form_7501[\"port_code\"] == \"2704\"\n                assert form_7501[\"entry_date\"] == entry.entry_date.strftime(\"%m%d%Y\")\n                \n                # Importer information\n                assert form_7501[\"importer_number\"] == \"12-3456789\"\n                assert form_7501[\"importer_name\"] == \"Test Importer Corp\"\n                \n                # Financial information\n                assert form_7501[\"total_entered_value\"] == \"1050.00\"\n                assert form_7501[\"total_duty\"] == \"52.50\"\n                \n                # Transportation information\n                assert form_7501[\"vessel_name\"] == \"TEST VESSEL\"\n                assert form_7501[\"voyage_number\"] == \"V001\"\n\n    def test_missing_hs_code_handling(self, generator, mock_shipment):\n        \"\"\"Test handling of missing HS code.\"\"\"\n        mock_shipment.line_items[0].hs_code = None\n        \n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            with patch.object(generator, '_classify_commodity') as mock_classify:\n                mock_classify.return_value = \"9999.99.9999\"  # Default classification\n                \n                entry = generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n                \n                assert entry.line_items[0].hs_code == \"9999.99.9999\"\n                mock_classify.assert_called_once()\n\n    def test_invalid_port_code_handling(self, generator, mock_shipment):\n        \"\"\"Test handling of invalid port code.\"\"\"\n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.side_effect = EntryValidationError(\"Invalid port code: INVALID\")\n            \n            with pytest.raises(EntryValidationError) as exc_info:\n                generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n            \n            assert \"Invalid port code\" in str(exc_info.value)\n\n    def test_zero_duty_calculation(self, generator, mock_shipment):\n        \"\"\"Test zero duty calculation for duty-free items.\"\"\"\n        # Set up duty-free HS code\n        mock_shipment.line_items[0].hs_code = \"9817.00.9600\"  # Duty-free code\n        \n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            with patch.object(generator, '_calculate_duties') as mock_duties:\n                mock_duties.return_value = {\n                    \"total_duty\": Decimal(\"0.00\"),\n                    \"line_duties\": [{\"line_id\": \"LINE001\", \"duty\": Decimal(\"0.00\")}]\n                }\n                \n                entry = generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n                \n                assert entry.total_duty == Decimal(\"0.00\")\n                assert entry.line_items[0].duty_rate == Decimal(\"0.00\")\n\n    def test_multiple_line_items(self, generator, mock_shipment, mock_line_item):\n        \"\"\"Test entry generation with multiple line items.\"\"\"\n        # Add second line item\n        item2 = Mock(spec=ShipmentLineItem)\n        item2.id = \"LINE002\"\n        item2.description = \"Second Product\"\n        item2.hs_code = \"5678.90.1234\"\n        item2.quantity = Decimal(\"50.00\")\n        item2.unit_of_measure = \"KG\"\n        item2.unit_value = Decimal(\"25.00\")\n        item2.total_value = Decimal(\"1250.00\")\n        item2.country_of_origin = \"MX\"\n        item2.manufacturer = \"Second Manufacturer\"\n        item2.weight_kg = Decimal(\"75.00\")\n        \n        mock_shipment.line_items = [mock_line_item, item2]\n        mock_shipment.total_value = Decimal(\"2300.00\")\n        \n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            with patch.object(generator, '_calculate_duties') as mock_duties:\n                mock_duties.return_value = {\n                    \"total_duty\": Decimal(\"115.00\"),\n                    \"line_duties\": [\n                        {\"line_id\": \"LINE001\", \"duty\": Decimal(\"52.50\")},\n                        {\"line_id\": \"LINE002\", \"duty\": Decimal(\"62.50\")}\n                    ]\n                }\n                \n                entry = generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n                \n                assert len(entry.line_items) == 2\n                assert entry.total_entered_value == Decimal(\"2300.00\")\n                assert entry.total_duty == Decimal(\"115.00\")\n\n    @patch('c8_platform.declaration_engine.ace_entry.requests.get')\n    def test_mock_external_api_port_lookup(self, mock_get, generator, mock_shipment):\n        \"\"\"Test mocking of external API calls for port lookup.\"\"\"\n        mock_response = Mock()\n        mock_response.json.return_value = {\n            \"port_code\": \"2704\",\n            \"port_name\": \"New York, NY\",\n            \"district\": \"10\"\n        }\n        mock_response.status_code = 200\n        mock_get.return_value = mock_response\n        \n        port_info = generator._get_port_info(\"USNYC\")\n        \n        assert port_info[\"port_code\"] == \"2704\"\n        assert port_info[\"district\"] == \"10\"\n        mock_get.assert_called_once()\n\n    @patch('c8_platform.declaration_engine.ace_entry.requests.post')\n    def test_mock_external_api_duty_calculation(self, mock_post, generator):\n        \"\"\"Test mocking of external API calls for duty calculation.\"\"\"\n        mock_response = Mock()\n        mock_response.json.return_value = {\n            \"total_duty\": \"105.50\",\n            \"duty_rate\": \"5.5\",\n            \"additional_fees\": \"0.00\"\n        }\n        mock_response.status_code = 200\n        mock_post.return_value = mock_response\n        \n        duty_info = generator._calculate_duties(\"1234.56.7890\", Decimal(\"1000.00\"))\n        \n        assert duty_info[\"total_duty\"] == \"105.50\"\n        mock_post.assert_called_once()\n\n    def test_entry_validation_missing_required_fields(self, generator):\n        \"\"\"Test validation of required fields.\"\"\"\n        # Create incomplete shipment\n        incomplete_shipment = Mock(spec=Shipment)\n        incomplete_shipment.id = \"SHIP001\"\n        incomplete_shipment.importer = None  # Missing required field\n        incomplete_shipment.line_items = []\n        \n        with pytest.raises(EntryValidationError) as exc_info:\n            generator.generate_entry(incomplete_shipment, EntryType.CONSUMPTION)\n        \n        assert \"Missing required importer information\" in str(exc_info.value)\n\n    def test_entry_number_generation_uniqueness(self, generator, mock_shipment):\n        \"\"\"Test that entry numbers are unique.\"\"\"\n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            with patch.object(generator, '_calculate_duties') as mock_duties:\n                mock_duties.return_value = {\n                    \"total_duty\": Decimal(\"52.50\"),\n                    \"line_duties\": [{\"line_id\": \"LINE001\", \"duty\": Decimal(\"52.50\")}]\n                }\n                \n                entry1 = generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n                entry2 = generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n                \n                assert entry1.entry_number != entry2.entry_number\n\n    def test_bond_validation(self, generator, mock_shipment):\n        \"\"\"Test bond validation for different entry types.\"\"\"\n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            with patch.object(generator, '_validate_bond') as mock_bond:\n                mock_bond.return_value = True\n                \n                entry = generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n                \n                assert entry.bond_required is True\n                mock_bond.assert_called_once()\n\n    def test_special_program_indicators(self, generator, mock_shipment):\n        \"\"\"Test special program indicators (NAFTA, etc.).\"\"\"\n        # Mark as NAFTA shipment\n        mock_shipment.nafta_eligible = True\n        mock_shipment.line_items[0].country_of_origin = \"MX\"\n        \n        with patch.object(generator, '_get_port_info') as mock_port:\n            mock_port.return_value = {\"code\": \"2704\", \"district\": \"10\"}\n            \n            with patch.object(generator, '_calculate_duties') as mock_duties:\n                mock_duties.return_value = {\n                    \"total_duty\": Decimal(\"0.00\"),  # NAFTA duty-free\n                    \"line_duties\": [{\"line_id\": \"LINE001\", \"duty\": Decimal(\"0.00\")}]\n                }\n                \n                entry = generator.generate_entry(mock_shipment, EntryType.CONSUMPTION)\n                \n                assert entry.special_program == \"NAFTA\"\n                assert entry.total_duty == Decimal(\"0.00\")\n\n\nclass TestACEEntry:\n    \"\"\"Test suite for ACE Entry data structure.\"\"\"\n\n    def test_ace_entry_creation(self):\n        \"\"\"Test ACE Entry object creation.\"\"\"\n        entry = ACEEntry(\n            entry_number=\"123-1234567-8\",\n            entry_type=\"01\",\n            port_code=\"2704\",\n            entry_date=date.today(),\n            importer_number=\"12-3456789\",\n            total_entered_value=Decimal(\"1000.00\")\n        )\n        \n        assert entry.entry_number == \"123-1234567-8\"\n        assert entry.entry_type == \"01\"\n        assert entry.is_consumption_entry()\n\n    def test_entry_type_validation(self):\n        \"\"\"Test entry type validation.\"\"\"\n        valid_types = [\"01\", \"06\", \"11\", \"46\", \"86\"]\n        \n        for entry_type in valid_types:\n            entry = ACEEntry(\n                entry_number=\"123-1234567-8\",\n                entry_type=entry_type,\n                port_code=\"2704\",\n                entry_date=date.today(),\n                importer_number=\"12-3456789\",\n                total_entered_value=Decimal(\"1000.00\")\n            )\n            assert entry.entry_type == entry_type\n\n    def test_line_item_validation(self):\n        \"\"\"Test line item validation.\"\"\"\n        line_item = EntryLineItem(\n            line_number=1,\n            hs_code=\"1234.56.7890\",\n            description=\"Test Product\",\n            quantity=Decimal(\"100.00\"),\n            unit_value=Decimal(\"10.00\"),\n            total_value=Decimal(\"1000.00\"),\n            country_of_origin=\"CN\"\n        )\n        \n        assert line_item.is_valid()\n        assert line_item.hs_code == \"1234.56.7890\"\n\n\nclass TestISFEntry:\n    \"\"\"Test suite for ISF Entry data structure.\"\"\"\n\n    def test_isf_entry_creation(self):\n        \"\"\"Test ISF Entry object creation.\"\"\"\n        isf = ISFEntry(\n            filing_number=\"ISF-12345\",\n            importer_of_record=\"Test Importer\",\n            vessel_name=\"TEST VESSEL\",\n            voyage_number=\"V001\",\n            port_of_discharge=\"USNYC\",\n            estimated_arrival=datetime(2024, 3, 15)\n        )\n        \n        assert isf.filing_number == \"ISF-12345\"\n        assert isf.importer_of_record == \"Test Importer\"\n\n    def test_isf_10_data_elements_validation(self):\n        \"\"\"Test ISF-10 data elements validation.\"\"\"\n        isf = ISFEntry(\n            filing_number=\"ISF-12345\",\n            importer_of_record=\"Test Importer\",\n            vessel_name=\"TEST VESSEL\",\n            voyage_number=\"V001\",\n            port_of_discharge=\"USNYC\",\n            estimated_arrival=datetime(2024, 3, 15)\n        )\n        \n        # Set all ISF-10 elements\n        isf.consignee = \"Test Consignee\"\n        isf.seller = \"Test Seller\"\n        isf.buyer = \"Test Buyer\"\n        isf.ship_to_party = \"Test Ship To\"\n        isf.country_of_origin = \"CN\"\n        isf.commodity_hs_code = \"1234.56.7890\"\n        isf.container_stuffing_location = \"CNSHA\"\n        isf.consolidator = \"Test Consolidator\"\n        isf.importer_security_filing_agent = \"Test Agent\"\n        \n        assert isf.has_complete_isf_10_data()\n\n\nclass TestEntryValidation:\n    \"\"\"Test suite for entry validation logic.\"\"\"\n\n    def test_required_fields_validation(self):\n        \"\"\"Test validation of required fields.\"\"\"\n        with pytest.raises(EntryValidationError):\n            ACEEntry(\n                entry_number=\"\",  # Empty entry number\n                entry_type=\"01\",\n                port_code=\"2704\",\n                entry_date=date.today(),\n                importer_number=\"12-3456789\",\n                total_entered_value=Decimal(\"1000.00\")\n            )\n\n    def test_hs_code_format_validation(self):\n        \"\"\"Test HS code format validation.\"\"\"\n        line_item = EntryLineItem(\n            line_number=1,\n            hs_code=\"INVALID\",  # Invalid format\n            description=\"Test Product\",\n            quantity=Decimal(\"100.00\"),\n            unit_value=Decimal(\"10.00\"),\n            total_value=Decimal(\"1000.00\"),\n            country_of_origin=\"CN\"\n        )\n        \n        assert not line_item.is_valid()\n\n    def test_negative_values_validation(self):\n        \"\"\"Test validation of negative values.\"\"\"\n        with pytest.raises(EntryValidationError):\n            EntryLineItem(\n                line_number=1,\n                hs_code=\"1234.56.7890\",\n                description=\"Test Product\",\n                quantity=Decimal(\"-100.00\"),  # Negative quantity\n                unit_value=Decimal(\"10.00\"),\n                total_value=Decimal(\"1000.00\"),\n                country_of_origin=\"CN\"\n            )\n\n\nif __name__ == \"__main__\":\n    pytest.main([__file__])\n</file_text>\n\nThis comprehensive test suite covers all the requirements for testing the ACE Entry generator:\n\n## Key Features Tested:\n\n### 1. **All ACE Entry Types (01, 06, 11, 46, 86)**\n- Entry Type 01: Consumption Entry\n- Entry Type 06: Warehouse Entry  \n- Entry Type 11: Immediate Delivery\n- Entry Type 46: Foreign Trade Zone Entry\n- Entry Type 86: Vessel Repair Entry\n\n### 2. **ISF-10 + ISF-5 Importer Security Filing**\n- Complete ISF-10 data elements validation\n- ISF-5 data elements for vessel information\n- Vessel operator and flag state information\n\n### 3. **Entry Summary Fields (7501 Mapping)**\n- Form 7501 field mapping\n- Header information validation\n- Financial data mapping\n- Transportation details\n\n### 4. **Edge Cases**\n- Missing HS code handling with auto-classification\n- Invalid port code error handling\n- Zero duty calculations for duty-free items\n- Multiple line items processing\n- Negative values validation\n\n### 5. **Mock External API Calls**\n- Port lookup API mocking\n- Duty calculation API mocking  \n- Vessel information API mocking\n- Commodity classification API mocking\n\n### 6. **Additional Test Coverage**\n- Entry number uniqueness\n- Bond validation requirements\n- Special program indicators (NAFTA, etc.)\n- Required fields validation\n- HS code format validation\n- Complete data structure testing\n\nThe tests use proper mocking to isolate units under test and avoid external dependencies, while providing comprehensive coverage of all entry types and edge cases specified in the requirements."
}