Selenium - Data Driven using Excel

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While designing a test, parameterizing the tests is inevitable. We will make use of Apache POI - Excel JAR's to achieve the same. It helps us read and write into Excel.

Download JAR

Step 1 − Navigate to the URL - https://poi.apache.org/download.html and download the ZIP format.

Step 2 − Click on the Mirror Link to download the JAR's.

Step 3 − Unzip the contents to a folder.

Step 4 − Unzipped contents would be displayed as shown below.

Step 5 − Now create a new project and add all the 'External JARs' under 'poi-3.10.FINAL' folder.

Step 6 − Now add all the 'External JARs' under the 'ooxml-lib' folder.

Step 7 − Now add all the 'External JARs' under the 'lib' folder.

Step 8 − The Added JAR is displayed as shown below.

Step 9 − The Package Explorer is displayed as shown below. Apart from that, add 'WebDriver' related JAR's

Parameterization

For demonstration, we will parameterize the percent calculator test.

Step 1 − We will parameterize all the inputs required for percent calculator using Excel. The designed Excel is shown below.

Step 2 − Execute all the percent calculator functions for all the specified parameters.

Step 3 − Let us create generic methods to access the Excel file using the imported JARs. These methods help us get a particular cell data or to set a particular cell data, etc.

 import java.io.*; import org.apache.poi.xssf.usermodel.*; public class ExcelUtils { private XSSFSheet ExcelWSheet; private XSSFWorkbook ExcelWBook; //Constructor to connect to the Excel with sheetname and Path public Excelutils(String Path, String SheetName) throws Exception { try { // Open the Excel file FileInputStream ExcelFile = new FileInputStream(Path); // Access the required test data sheet ExcelWBook = new XSSFWorkbook(ExcelFile); ExcelWSheet = ExcelWBook.getSheet(SheetName); } catch (Exception e) { throw (e); } } //This method is to set the rowcount of the excel. public int excel_get_rows() throws Exception { try { return ExcelWSheet.getPhysicalNumberOfRows(); } catch (Exception e) { throw (e); } } //This method to get the data and get the value as strings. public String getCellDataasstring(int RowNum, int ColNum) throws Exception { try { String CellData = ExcelWSheet.getRow(RowNum).getCell(ColNum).getStringCellValue(); System.out.println("The value of CellData " + CellData); return CellData; } catch (Exception e) { return "Errors in Getting Cell Data"; } } //This method to get the data and get the value as number. public double getCellDataasnumber(int RowNum, int ColNum) throws Exception { try { double CellData = ExcelWSheet.getRow(RowNum).getCell(ColNum).getNumericCellValue(); System.out.println("The value of CellData " + CellData); return CellData; } catch (Exception e) { return 000.00; } } } 

Step 4 − Now add a main method which will access the Excel methods that we have developed.

 public class xldemo { public static void main(String[] args) throws Exception { ExcelUtils dd = new ExcelUtils ("C:\\Book1.xlsx","Sheet1"); System.out.println("The Row count is " + dd.excel_get_rows()); dd.getCellDataasnumber(1, 1); dd.getCellDataasnumber(1, 2); dd.getCellDataasnumber(1, 3); dd.getCellDataasnumber(2, 1); dd.getCellDataasnumber(2, 2); dd.getCellDataasnumber(2, 3); dd.getCellDataasnumber(3, 1); dd.getCellDataasnumber(3, 2); dd.getCellDataasnumber(3, 3); } } 

Output

Upon Executing the script, the output is displayed in the console as shown below.