ReleaseNotes4.7 - Junit4

Summary of Changes in version 4.7

Rules allow very flexible addition or redefinition of the behavior of each test method in a test class. Testers can reuse or extend one of the provided Rules below, or write their own.
The TemporaryFolder Rule allows creation of files and folders that are guaranteed to be deleted when the test method finishes (whether it passes or fails):
ExternalResource is a base class for Rules (like TemporaryFolder) that set up an external resource before a test (a file, socket, server, database connection, etc.), and guarantee to tear it down afterward:
The ErrorCollector Rule allows execution of a test to continue after the first problem is found (for example, to collect all the incorrect rows in a table, and report them all at once):
Verifier is a base class for Rules like ErrorCollector, which can turn otherwise passing test methods into failing tests if a verification check is failed
TestWatchman is a base class for Rules that take note of the testing action, without modifying it. For example, this class will keep a log of each passing and failing test:
The TestName Rule makes the current test name available inside test methods:
The Timeout Rule applies the same timeout to all test methods in a class:
The ExpectedException Rule allows in-test specification of expected exception types and messages:

Due to typing incompatibilities, JUnit is still including the 1.1 release of hamcrest. This is not a change from 4.6, but is a change from pre-beta releases of 4.7. Due to this incompatibility, tests using Hamcrest 1.2 must still use the MatcherAssert.assertThat method from Hamcrest, not Assert.assertThat from JUnit.