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FEST Assertions Module has moved to Github !

Check this page :https://github.com/alexruiz/fest-assert-2.x/wiki

The documentation below is for Fest 1.x which is no more maintained, we are focusing our effort to the 2.x version !

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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.

We have written a migration guide to easily replace JUnit assertions with Fest assertions. Note that FEST & JUnit assertions can coexist together, you don't have to migrate all in one time.

Examples

Some simple example to start.

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.

More Examples
Examples that how more complex usages of our assertions.

Migration from JUnit
An easy guide on how to migrate from JUnit's own assertions to ours.

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