用 JSON 原生斷言改進 API 測試

Xceed Fluent Assertions, developed by Xceed Software, is a new .NET library designed to enhance the readability and maintainability of unit tests. It provides a fluent interface for expressing assertions, allowing developers to write more natural and expressive test code. Instead of relying on traditional, often convoluted assertion syntax, Xceed Fluent Assertions enables developers to chain together methods that clearly articulate the expected outcomes of their tests. This promotes a more declarative style of testing, making it easier to understand the intent and logic behind each test case.

The Fluent Assertions 8.7 update introduces JSON-native assertions with first-class JSON support, enabling developers to validate JSON payloads directly within their tests. This enhancement allows precise verification of structure, data types, and values on JsonNode and JsonArray objects without the need for manual parsing or custom helper methods. By treating JSON as a native element in the assertion framework, the update improves API and integration testing, improves test clarity, and reduces maintenance overhead associated with complex JSON comparisons.

To see a full list of what's new in v8.7, see our release notes.

Xceed Fluent Assertions is licensed per developer and is available as a perpetual license with 1 year of updates and support. See our Xceed Fluent Assertions licensing page for full details.

Xceed Fluent Assertions is available individually or as part of Xceed Ultimate Suite.