Manage Testing Data with Java

This project belongs to a series of posts on my blog about this subject. Please feel free to contribute and send your pull requests with either better or new ways to manage data.

Run this project

As it is a testing project you don't need too much. You will need the following:

• IDE of your choice
• Java JDK 23+
• Maven

Managing data through a property file

Approach	Test class	Support classes
Local solution to read a property file	PropertiesFileTest.java	ReadProperties.java, and data.properties
Solution using Owner library	PropertiesFileWithOwnerTest.java	PropertiesManager.java, PropertiesFile.java, and data.properties

Data Driven with JUnit

Approach	Test class	Support classes / files
Using the @ValueSource annotation	JUnitValueSourceTest
Using the @MethodSource annotation with internal data methods	InternalMethodSourceTest.java
Using the @MethodSource annotation with external data methods	ExternalMethodSourceTest.java	ExternalData.java
Using the @ArgumentsSource annotation with an argument provider	ArgumentProviderTest.java	ProductsDataArgumentProvider.java
Using the @CsvFileSource annotation with an external csv file	CsvFileSourceTest.class	products.csv
Using the @CsvSource annotation with the CSV notation as data provider	CsvSourceTest.class

Data Driven with TestNG

Approach	Test class	Support classes / files
Using the @Parameters annotation	TestNGParametersTest.java	testng_data_parameters.xml
Using the local @DataProvider	TestNGLocalDataProviderTest.java
Using an external @DataProvider	TestNGExternalDataProviderTest.java	TestNGDataProvider.java