How do I load test data from an external file like Excel?

This skill provides specific implementation patterns using libraries like Apache POI for Excel, Jackson for JSON, and BufferedReader for CSV to map external files to TestNG DataProviders.

Can I run data-driven tests in parallel?

Yes, TestNG allows DataProviders to run in parallel by setting the 'parallel' attribute to true in the @DataProvider annotation, which this skill demonstrates.

What is a TestNG DataProvider?

A DataProvider is a specialized method in TestNG that supplies an array of data to a test method, allowing that method to execute multiple times with different input values.

What is the difference between @DataProvider and @Factory?

@DataProvider feeds data to a single test method, whereas @Factory creates multiple instances of an entire test class, each initialized with different data.

TestNG Data-Driven Testing

Name: TestNG Data-Driven Testing
Author: TheBushidoCollective

byTheBushidoCollective

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Security & Testing

Implements robust data-driven testing patterns using TestNG DataProviders, Factories, and external data source integrations.

This skill empowers developers to master TestNG's data-driven capabilities, enabling the clean separation of test logic from test data. It provides comprehensive implementation patterns for simple and advanced DataProviders—including parallel, lazy-loading, and context-aware variants—as well as the Factory pattern for dynamic test instance creation. By utilizing these techniques, teams can achieve high test coverage across diverse datasets while maintaining a dry and manageable codebase, whether data is defined in-code or sourced from external CSV, JSON, or Excel files.

Key Features

01Advanced DataProvider patterns including parallel and lazy-loading for large datasets

02Context-aware DataProviders using Method and ITestContext reflection

03Factory pattern implementation for dynamic, parameterized test class instantiation

0495 GitHub stars

05External data source integration for CSV, JSON, and Apache POI Excel loading

06Standardized parameterization patterns for consistent test architecture

Use Cases

01Optimizing test execution time by running data-driven tests in parallel threads

02Executing cross-browser or multi-environment tests using the Factory pattern

03Validating complex business logic against large external datasets stored in Excel or JSON

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add thebushidocollective/han testng-data-driven

For use in Claude.ai and ChatGPT

Download Skill