Reading test data from an Excel file using JUnit and Apache POI

To maintain test cases and test data, Microsoft Excel is the favorite tool used by testers. Compared to the CSV file format, Excel gives numerous features and a structured way to store data. A tester can create and maintain tables of test data in an Excel spreadsheet easily.

In this recipe, we will use an Excel spreadsheet as your data source. We will use the Apache POI API, developed by the Apache Foundation, to manipulate the Excel spreadsheet. This recipe also implements some negative test handling.

Getting ready

To begin, follow these steps:

• Add OpenCSV dependency to the Maven pom.xml file:

  <dependency>
    <groupId>com.opencsv</groupId>
    <artifactId>opencsv</artifactId>
    <version>3.4</version>
    <scope>test</scope>
  </dependency>

• Prepare an Excel spreadsheet with the required data

We will also need a SpreadsheetData helper class to read the Excel spreadsheets. This is...