diff --git a/RhSolutions.Tests/CanFillSleeves.cs b/RhSolutions.Tests/CanFillSleeves.cs
new file mode 100644
index 0000000..aedad09
--- /dev/null
+++ b/RhSolutions.Tests/CanFillSleeves.cs
@@ -0,0 +1,44 @@
+using RhSolutions.AddIn;
+
+namespace RhSolutions.Tests;
+
+[ExcelTestSettings(OutOfProcess = true)]
+public class CanFillSleeves : IDisposable
+{
+    private RhSolutionsAddIn _addIn;
+    private ISleevesCalculator _calculator;
+    private IReader _reader;
+    private IWriter _writer;
+    private Worksheet _worksheet;
+
+    public CanFillSleeves()
+    {
+        _addIn = new();
+        _addIn.AutoOpen();
+        _calculator = new SleevesCalculator();
+        _reader = new ExcelReader(Util.Application, RhSolutionsAddIn.Configuration);
+        _writer = new CurrentPriceWriter(Util.Application, RhSolutionsAddIn.Configuration);
+        _worksheet = Util.Workbook.Worksheets[1];
+    }
+
+    [ExcelFact(Workbook = @"..\..\..\TestWorkbooks\TestSpecificationSleeves.xlsx")]
+    public void CanCalculateSleeves()
+    {
+        var products = _reader.ReadProducts(new[] { _worksheet });
+        var sleeves = _calculator.CalculateSleeves(products.First().Item2);
+        _writer.WriteProducts(sleeves);
+
+        Assert.Equal(25, _worksheet.Range["E2"].Value);
+        Assert.Equal(15, _worksheet.Range["E3"].Value);
+        Assert.Equal(7, _worksheet.Range["E4"].Value);
+        Assert.Equal(8, _worksheet.Range["E5"].Value);
+        Assert.Equal(1, _worksheet.Range["E6"].Value);
+        Assert.Equal(3, _worksheet.Range["E7"].Value);
+        Assert.Equal(4, _worksheet.Range["E8"].Value);
+    }
+
+    public void Dispose()
+    {
+        _addIn.AutoClose();
+    }
+}
diff --git a/RhSolutions.Tests/TestWorkbooks/TestSpecificationSleeves.xlsx b/RhSolutions.Tests/TestWorkbooks/TestSpecificationSleeves.xlsx
new file mode 100644
index 0000000..742ceaf
Binary files /dev/null and b/RhSolutions.Tests/TestWorkbooks/TestSpecificationSleeves.xlsx differ