google/go-cmp

Features

• Recursive Semantic Equality - Determines if two complex data structures are semantically equal by recursively comparing their components.
• Reflection-Based Comparison - Uses Go reflection to recursively walk through complex data structures for deep equality checks.
• Equality Logic Frameworks - Provides a configurable framework for implementing specialized comparison logic and handling unexported fields.
• Unexported Field Access Control - Manages reflection access to unexported fields to prevent runtime panics during deep equality checks.
• Comparison Logic Overrides - Provides a framework for registering custom functions to replace default equality logic for specific types.
• Custom Equality Definitions - Allows the definition of custom comparison functions to handle special cases like floating-point tolerances.
• Recursive Data Diffing - Traverses Go types recursively to identify and produce detailed mismatches between expected and actual values.
• Semantic Value Comparison - Determines if two values are semantically equal by recursively comparing primitive types or applying specialized logic.
• Go Testing Frameworks - Serves as a specialized assertion tool for Go that generates detailed diffs between expected and actual values.
• Private Field Comparison Controls - Provides capabilities to manage whether unexported fields are included in value comparisons during testing.
• Unexported Field Handling - Manages how private struct fields are treated during comparison to prevent panics in Go test suites.
• Value Comparison Libraries - Compares complex Go data structures in tests using semantic equality instead of strict bitwise equality.
• Object Equality Implementations - Supports defining specific equality methods on types to control how their equality is calculated.
• Special Type Equality Handlers - Routes comparison logic to special handlers based on the concrete type of the values.
• Functional Options - Implements the functional options pattern to configure complex comparison settings via variadic functions.
• Custom Assertions - Enables specialized equality rules for types to handle business logic or floating point precision during verification.
• Unit Testing - Facilitates the verification of complex data structures within Go unit tests.
• Testing and QA - Package for comparing Go values in tests.
• Testing and Quality Assurance - Package for deep comparison of Go values.
• Testing Frameworks - Package for comparing Go values in tests.

Star history