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Welcome to the FEST Fluent Assertions Module

FEST-Assert is a Java library that provides a fluent interface for writing assertions. Its main goal is to improve test code readability and make maintenance of tests easier.

FEST-Assert requires Java SE 5.0 or later and can be used with either JUnit or TestNG.

Currently, this module provides assertions for the following data types:

  • Object
  • String
  • Collection
  • Map
  • Primitives (boolean, int, char, etc.)
  • Arrays of Object
  • Arrays of primitives
  • BufferedImage
  • Throwable
  • File
  • BigDecimal

It can be downloaded here. For Maven 2 users, details about the project's repository can be found at here.

Examples

Some simple example to start.

More complete examples

The full example file is FestAssertExamples.java, you should be able to copy it in your IDE and run it successfully as JUnit tests.

Custom Error Messages
Specifying custom error messages.

Extending
Extending FEST-Assert with custom conditions and assertions.

JUnit-Specific Features
FEST-Assert supports JUnit-specific features.

Comparing to Hamcrest
Comparing FEST-Assert and Hamcrest.

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