add unit test #771

Author: shps951023

src/MiniExcel/SaveByTemplate/ExcelOpenXmlTemplate.Impl.cs

@@ -534,14 +534,18 @@ private void CellIEnumerableValuesGenerate(string endPrefix, StreamWriter writer
             var cleanRowXml = CleanXml(rowXml, endPrefix);
             var cleanOuterXmlOpen = CleanXml(outerXmlOpen, endPrefix);
             var cleanInnerXml = CleanXml(innerXml, endPrefix);
-            var notFirstRowInnerXmlElement = rowElement.Clone();
+
+            // https://github.com/mini-software/MiniExcel/issues/771 Saving by template introduces unintended value replication in each row #771
+            var notFirstRowInnerXmlElement = rowElement.Clone(); 
             foreach (XmlElement c in notFirstRowInnerXmlElement.SelectNodes("x:c", _ns))
             {
                 var v = c.SelectSingleNode("x:v", _ns);
                 if (v != null && !Regex.IsMatch(v.InnerText, @".*?\{\{.*?\}\}.*?"))
                     v.InnerText = string.Empty;
             }
             var cleannotFirstRowInnerXmlElementInnerXml = CleanXml(notFirstRowInnerXmlElement.InnerXml, endPrefix);
+            
+            
             foreach (var item in rowInfo.CellIEnumerableValues)
             {
                 iEnumerableIndex++;
@@ -716,7 +720,10 @@ private void CellIEnumerableValuesGenerate(string endPrefix, StreamWriter writer
                     rowIndexDiff += rowInfo.IEnumerableMercell?.Height ?? 1; //TODO:base on the merge size
                 if (isFirst)
                 {
+                    // https://github.com/mini-software/MiniExcel/issues/771 Saving by template introduces unintended value replication in each row #771
                     cleanInnerXml = cleannotFirstRowInnerXmlElementInnerXml;
+
+
                     isFirst = false;
                 }
 

tests/MiniExcelTests/MiniExcelIssueTests.cs

@@ -4220,5 +4220,10 @@ public void TestIssue771()
             list12 = Enumerable.Range(0, 3).Select(s => new { ID = Guid.NewGuid(), level = s }),
         };
         MiniExcel.SaveAsByTemplate(path,template, value);
+        var rows = MiniExcel.Query(path).ToList();
+        Assert.Equal("2025-1", rows[2].B);
+        Assert.Equal(null, rows[3].B);
+        Assert.Equal(null, rows[4].B);
+        Assert.Equal("2025-2", rows[5].B);
     }
 }