What levels of parallelism are supported?

The skill covers suite-level, class-level, method-level, and instance-level parallelism, allowing for granular control over test execution.

How does this skill handle thread safety?

It provides patterns for ThreadLocal storage (ideal for WebDrivers), synchronized blocks for shared resources, and the use of atomic variables to prevent race conditions.

Can I run DataProviders in parallel with this skill?

Yes, the skill includes specific configurations and Java examples for enabling parallel execution within DataProvider-driven tests.

Does it help with database isolation during parallel runs?

Yes, it includes patterns for creating isolated database schemas per thread or test method to ensure concurrent tests do not interfere with shared data.

TestNG Parallel Execution

Name: TestNG Parallel Execution
Author: TheBushidoCollective

byTheBushidoCollective

•

Security & Testing

Optimizes TestNG test execution through advanced parallelization strategies and thread-safety patterns.

About

This skill empowers Claude to configure and manage complex parallel execution environments within the TestNG framework. It provides expert guidance on implementing suite-level, class-level, and method-level parallelism while ensuring test reliability through thread-safe patterns like ThreadLocal storage, synchronized resources, and isolated database schemas. It is specifically designed for developers looking to maximize test throughput and significantly reduce CI/CD cycle times without compromising on test suite stability.

Key Features

Advanced thread pool and DataProvider parallelization
Dependency management and ordered parallel execution
Multi-level parallel configuration (Suite, Class, Method, and Instance)
Thread-safety patterns using ThreadLocal and atomic operations
Isolation strategies for database and shared resource testing
39 GitHub stars

Use Cases

Refactoring legacy single-threaded test suites for high-concurrency environments
Implementing thread-safe Selenium WebDriver instances for parallel UI testing
Reducing total test execution time in large-scale CI/CD pipelines

About

Key Features

Advanced thread pool and DataProvider parallelization
Dependency management and ordered parallel execution
Multi-level parallel configuration (Suite, Class, Method, and Instance)
Thread-safety patterns using ThreadLocal and atomic operations
Isolation strategies for database and shared resource testing
39 GitHub stars

Use Cases

Refactoring legacy single-threaded test suites for high-concurrency environments
Implementing thread-safe Selenium WebDriver instances for parallel UI testing
Reducing total test execution time in large-scale CI/CD pipelines