assertable_json library

A powerful, fluent JSON testing utility for Dart that makes it easy to write expressive and readable assertions for JSON data structures.

This library provides two main classes for JSON testing:

• AssertableJson - For testing JSON data structures and objects
• AssertableJsonString - For testing JSON string responses

Core features include:

• Property validation
• Type checking
• Numeric assertions
• Pattern matching
• Schema validation
• Conditional testing
• Fluent API for chaining assertions

Example usage:

final json = AssertableJson({
  'user': {
    'id': 123,
    'name': 'John Doe',
    'email': '[e-mail]',
    'age': 30
  }
});

json
  .has('user', (user) => user
    .has('id')
    .whereType<int>('id')
    .has('name')
    .whereType<String>('name')
    .has('email')
    .whereContains('email', '@')
    .has('age')
    .isGreaterThan('age', 18));

Classes

AssertableJson

A powerful JSON testing utility that provides fluent assertions for JSON structures.

AssertableJsonBase

An abstract base class for assertable JSON data.

AssertableJsonString

A utility class for asserting JSON data in tests.

Typedefs

AssertableJsonCallback = dynamic Function(AssertableJson)