REST Assured is a Java-based library that simplifies testing RESTful APIs by providing a domain-specific language (DSL) for writing readable and maintainable tests. It is widely used for automating API testing, allowing developers and testers to validate the correctness, performance, and behavior of APIs effortlessly.
Key Features of REST Assured :
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Supports RESTful API Testing:
- Designed specifically for testing APIs that conform to REST principles.
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Simple and Readable Syntax:
- Provides a DSL that makes test scripts concise and easy to understand, resembling natural language.
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Built-In HTTP Methods:
- Offers direct support for common HTTP methods like
GET, POST, PUT, DELETE, PATCH, etc.
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JSON and XML Support:
- Natively supports validating and parsing JSON and XML responses.
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Built-In Assertions:
- Allows verifying response status codes, headers, body, and other response attributes using a variety of assertion methods.
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Authentication Support:
- Supports multiple authentication mechanisms such as Basic Auth, OAuth 1.0/2.0, Digest Auth, Preemptive Auth, and more.
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Integration with Testing Frameworks:
- Easily integrates with popular testing frameworks like JUnit and TestNG.
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Support for Parameterization:
- Enables testing APIs with query parameters, path parameters, form data, and request body payloads.
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Custom Filters:
- Allows adding custom request/response filters for advanced use cases, like logging or manipulating requests/responses dynamically.
