test: add test case for reading Excel formula

Author: delei

fastexcel/src/test/java/cn/idev/excel/celldata/CellDataDataTest.java

@@ -1,35 +1,40 @@
 package cn.idev.excel.celldata;
 
 import cn.idev.excel.FastExcel;
+import cn.idev.excel.context.AnalysisContext;
 import cn.idev.excel.enums.CellDataTypeEnum;
+import cn.idev.excel.event.AnalysisEventListener;
 import cn.idev.excel.metadata.data.FormulaData;
 import cn.idev.excel.metadata.data.WriteCellData;
 import cn.idev.excel.util.DateUtils;
 import cn.idev.excel.util.TestFileUtil;
-import java.io.File;
-import java.math.BigDecimal;
-import java.util.ArrayList;
-import java.util.List;
+import lombok.extern.slf4j.Slf4j;
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.MethodOrderer;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestMethodOrder;
 
-/**
- *
- */
+import java.io.File;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
 @TestMethodOrder(MethodOrderer.MethodName.class)
+@Slf4j
 public class CellDataDataTest {
 
     private static File file07;
     private static File file03;
     private static File fileCsv;
+    private static File file07_formula;
 
     @BeforeAll
     public static void init() {
         file07 = TestFileUtil.createNewFile("cellData07.xlsx");
         file03 = TestFileUtil.createNewFile("cellData03.xls");
-        fileCsv = TestFileUtil.createNewFile("cellDataCsv.csv");
+        fileCsv = TestFileUtil.readFile("cellDataCsv.csv");
+        file07_formula = TestFileUtil.readFile("celldata" + File.separator + "celldata_formula.xlsx");
     }
 
     @Test
@@ -47,6 +52,25 @@ public void t03ReadAndWriteCsv() throws Exception {
         readAndWrite(fileCsv);
     }
 
+    @Test
+    public void t04ReadFormula07() throws Exception {
+        FastExcel.read(file07_formula, CellDataReadData.class, new AnalysisEventListener<CellDataReadData>() {
+                    @Override
+                    public void invoke(CellDataReadData data, AnalysisContext context) {
+                        Assertions.assertNotNull(
+                                data.getFormulaValue().getFormulaData().getFormulaValue());
+                        log.info(
+                                "row formula: {}",
+                                data.getFormulaValue().getFormulaData().getFormulaValue());
+                    }
+
+                    @Override
+                    public void doAfterAllAnalysed(AnalysisContext context) {
+                    }
+                })
+                .doReadAll();
+    }
+
     private void readAndWrite(File file) throws Exception {
         FastExcel.write(file, CellDataWriteData.class).sheet().doWrite(data());
         FastExcel.read(file, CellDataReadData.class, new CellDataDataListener())

fastexcel/src/test/java/cn/idev/excel/celldata/CellDataReadData.java

@@ -6,9 +6,6 @@
 import lombok.Getter;
 import lombok.Setter;
 
-/**
- *
- */
 @Getter
 @Setter
 @EqualsAndHashCode