Merge pull request #10492 from hmdrzsharifi/bael-4777

Bael 4777-Insert a Row in Excel Using Apache POI

apache-poi/src/test/java/com/baeldung/poi/excel/insert/ExcelInsertRowUnitTest.java

@@ -0,0 +1,50 @@
+package com.baeldung.poi.excel.insert;
+
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.jupiter.api.Assertions;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.nio.file.Paths;
+
+public class ExcelInsertRowUnitTest {
+    private static final String FILE_NAME = "test.xlsx";
+    private static final String NEW_FILE_NAME = "new_test.xlsx";
+    private String fileLocation;
+
+    @Before
+    public void setup() throws URISyntaxException {
+        fileLocation = Paths.get(ClassLoader.getSystemResource(FILE_NAME).toURI()).toString();
+    }
+
+    @Test
+    public void givenWorkbook_whenInsertRowBetween_thenRowCreated() throws IOException {
+        int startRow = 2;
+        int rowNumber = 1;
+        Workbook workbook = new XSSFWorkbook(fileLocation);
+        Sheet sheet = workbook.getSheetAt(0);
+        int lastRow = sheet.getLastRowNum();
+        if (lastRow < startRow) {
+            sheet.createRow(startRow);
+        }
+        sheet.shiftRows(startRow, lastRow, rowNumber, true, true);
+        sheet.createRow(startRow);
+        FileOutputStream outputStream = new FileOutputStream(NEW_FILE_NAME);
+        workbook.write(outputStream);
+        File file = new File(NEW_FILE_NAME);
+
+        final int expectedRowResult = 5;
+        Assertions.assertEquals(expectedRowResult, workbook.getSheetAt(0).getLastRowNum());
+
+        outputStream.close();
+        file.delete();
+        workbook.close();
+    }
+
+}