unittests

TrafagSalesExporter/TrafagSalesExporter.Tests/ManualExcelImportServiceTests.cs

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+using ClosedXML.Excel;
+using TrafagSalesExporter.Models;
+using TrafagSalesExporter.Services;
+
+namespace TrafagSalesExporter.Tests;
+
+public class ManualExcelImportServiceTests
+{
+    [Fact]
+    public async Task ReadSalesRecordsAsync_Reads_Expected_Columns_From_Exporter_Format()
+    {
+        var site = new Site
+        {
+            TSC = "TRCH",
+            Land = "Schweiz"
+        };
+        var filePath = CreateWorkbook(workbook =>
+        {
+            var ws = workbook.Worksheets.Add("Sales");
+            WriteHeaders(ws);
+            ws.Cell(2, 1).Value = "15.04.2026 13:45:00";
+            ws.Cell(2, 2).Value = "TRDE";
+            ws.Cell(2, 3).Value = "INV-100";
+            ws.Cell(2, 4).Value = 7;
+            ws.Cell(2, 5).Value = "MAT-1";
+            ws.Cell(2, 6).Value = "Pressure Sensor";
+            ws.Cell(2, 7).Value = "PG-A";
+            ws.Cell(2, 8).Value = 2.5m;
+            ws.Cell(2, 9).Value = "SUP-1";
+            ws.Cell(2, 10).Value = "Supplier";
+            ws.Cell(2, 11).Value = "DE";
+            ws.Cell(2, 12).Value = "CUST-1";
+            ws.Cell(2, 13).Value = "Customer";
+            ws.Cell(2, 14).Value = "CH";
+            ws.Cell(2, 15).Value = "Industry";
+            ws.Cell(2, 16).Value = 10.25m;
+            ws.Cell(2, 17).Value = "EUR";
+            ws.Cell(2, 18).Value = "PO-1";
+            ws.Cell(2, 19).Value = 21.40m;
+            ws.Cell(2, 20).Value = "EUR";
+            ws.Cell(2, 21).Value = "DAP";
+            ws.Cell(2, 22).Value = "Alice";
+            ws.Cell(2, 23).Value = "14.04.2026";
+            ws.Cell(2, 24).Value = "10.04.2026";
+            ws.Cell(2, 25).Value = "Deutschland";
+            ws.Cell(2, 26).Value = "Invoice";
+        });
+
+        try
+        {
+            var service = new ManualExcelImportService();
+
+            var rows = await service.ReadSalesRecordsAsync(filePath, site);
+
+            var row = Assert.Single(rows);
+            Assert.Equal("TRDE", row.Tsc);
+            Assert.Equal("INV-100", row.InvoiceNumber);
+            Assert.Equal(7, row.PositionOnInvoice);
+            Assert.Equal("MAT-1", row.Material);
+            Assert.Equal(2.5m, row.Quantity);
+            Assert.Equal(10.25m, row.StandardCost);
+            Assert.Equal(21.40m, row.SalesPriceValue);
+            Assert.Equal("Deutschland", row.Land);
+            Assert.Equal("Invoice", row.DocumentType);
+            Assert.Equal(new DateTime(2026, 4, 14), row.InvoiceDate);
+            Assert.Equal(new DateTime(2026, 4, 10), row.OrderDate);
+        }
+        finally
+        {
+            File.Delete(filePath);
+        }
+    }
+
+    [Fact]
+    public async Task ReadSalesRecordsAsync_Uses_Site_Fallbacks_When_Tsc_And_Land_Are_Missing()
+    {
+        var site = new Site
+        {
+            TSC = "TRCH",
+            Land = "Schweiz"
+        };
+        var filePath = CreateWorkbook(workbook =>
+        {
+            var ws = workbook.Worksheets.Add("Sales");
+            WriteHeaders(ws);
+            ws.Cell(2, 3).Value = "INV-200";
+            ws.Cell(2, 5).Value = "MAT-2";
+        });
+
+        try
+        {
+            var service = new ManualExcelImportService();
+
+            var rows = await service.ReadSalesRecordsAsync(filePath, site);
+
+            var row = Assert.Single(rows);
+            Assert.Equal("TRCH", row.Tsc);
+            Assert.Equal("Schweiz", row.Land);
+        }
+        finally
+        {
+            File.Delete(filePath);
+        }
+    }
+
+    [Fact]
+    public async Task ReadSalesRecordsAsync_Parses_German_Decimal_Text_And_Skips_Empty_Rows()
+    {
+        var site = new Site
+        {
+            TSC = "TRAT",
+            Land = "Oesterreich"
+        };
+        var filePath = CreateWorkbook(workbook =>
+        {
+            var ws = workbook.Worksheets.Add("Sales");
+            WriteHeaders(ws);
+            ws.Cell(2, 3).Value = "INV-300";
+            ws.Cell(2, 8).Value = "1,50";
+            ws.Cell(2, 16).Value = "3,25";
+            ws.Cell(2, 19).Value = "7,90";
+            ws.Cell(3, 1).Value = "";
+            ws.Cell(3, 2).Value = "";
+            ws.Cell(3, 3).Value = "";
+        });
+
+        try
+        {
+            var service = new ManualExcelImportService();
+
+            var rows = await service.ReadSalesRecordsAsync(filePath, site);
+
+            var row = Assert.Single(rows);
+            Assert.Equal(1.50m, row.Quantity);
+            Assert.Equal(3.25m, row.StandardCost);
+            Assert.Equal(7.90m, row.SalesPriceValue);
+        }
+        finally
+        {
+            File.Delete(filePath);
+        }
+    }
+
+    [Fact]
+    public async Task ReadSalesRecordsAsync_Throws_When_InvoiceNumber_Header_Is_Missing()
+    {
+        var site = new Site
+        {
+            TSC = "TRCH",
+            Land = "Schweiz"
+        };
+        var filePath = CreateWorkbook(workbook =>
+        {
+            var ws = workbook.Worksheets.Add("Sales");
+            ws.Cell(1, 1).Value = "TSC";
+            ws.Cell(1, 2).Value = "Material";
+            ws.Cell(2, 1).Value = "TRCH";
+            ws.Cell(2, 2).Value = "MAT-3";
+        });
+
+        try
+        {
+            var service = new ManualExcelImportService();
+
+            var ex = await Assert.ThrowsAsync<InvalidOperationException>(() => service.ReadSalesRecordsAsync(filePath, site));
+
+            Assert.Contains("Invoice Number", ex.Message);
+        }
+        finally
+        {
+            File.Delete(filePath);
+        }
+    }
+
+    private static string CreateWorkbook(Action<XLWorkbook> fillWorkbook)
+    {
+        var filePath = Path.Combine(Path.GetTempPath(), $"{Guid.NewGuid():N}.xlsx");
+        using var workbook = new XLWorkbook();
+        fillWorkbook(workbook);
+        workbook.SaveAs(filePath);
+        return filePath;
+    }
+
+    private static void WriteHeaders(IXLWorksheet ws)
+    {
+        var headers = new[]
+        {
+            "extraction date",
+            "TSC",
+            "Invoice Number",
+            "Position on invoice",
+            "Material",
+            "Name",
+            "Product Group",
+            "Quantity",
+            "Supplier number",
+            "Supplier name",
+            "Supplier country",
+            "Customer number",
+            "Customer name",
+            "Customer country",
+            "Customer Industry",
+            "Standard cost",
+            "Standard Cost Currency",
+            "Purchase Order number",
+            "Sales Price/Value",
+            "Sales Currency",
+            "Incoterms 2020",
+            "Sales responsible employee",
+            "invoice date",
+            "order date",
+            "Land",
+            "Document Type"
+        };
+
+        for (var i = 0; i < headers.Length; i++)
+        {
+            ws.Cell(1, i + 1).Value = headers[i];
+        }
+    }
+}