Promises/A+ Compliance Test Suite

This package provides the official compliance test suite for the Promises/A+ specification, currently at version 2.1.2. It is designed to verify that a promise implementation correctly adheres to the `then()` method behavior defined in the Promises/A+ specification. The suite can be run in both Node.js and browser environments, requiring a minimal adapter interface from the promise library under test. Key differentiators include its status as the authoritative test suite for the specification, allowing compliant libraries to display the Promises/A+ logo. Releases appear to be driven by specification updates and maintenance, with the last major update (v2.0.0) aligning with Promises/A+ v1.1. It ensures comprehensive test coverage for various promise states and operations, making it an essential tool for promise library authors.