Summary of Changes in version 4.10

Thanks to a full cast of contributors of bug fixes and new features.

A full summary of commits between 4.9 and 4.10 is on github

junit-dep has correct contents

junit-dep-4.9.jar incorrectly contained hamcrest classes, which could lead to version conflicts in projects that depend on hamcrest directly. This is fixed in 4.10 [@dsaff, closing gh-309]

RuleChain

The RuleChain rule allows ordering of TestRules:

public static class UseRuleChain {
	@Rule
	public TestRule chain= RuleChain
	                       .outerRule(new LoggingRule("outer rule")
	                       .around(new LoggingRule("middle rule")
	                       .around(new LoggingRule("inner rule");

	@Test
	public void example() {
		assertTrue(true);
	}
}

writes the log

starting outer rule
starting middle rule
starting inner rule
finished inner rule
finished middle rule
finished outer rule

TemporaryFolder

TemporaryFolder#newFolder(String... folderNames) creates recursively deep temporary folders [@rodolfoliviero, closing gh-283]
TemporaryFolder#newFile() creates a randomly named new file, and #newFolder() creates a randomly named new folder [@Daniel Rothmaler, closing gh-299]

Theories

The Theories runner does not anticipate theory parameters that have generic types, as reported by github#64. Fixing this won't happen until Theories is moved to junit-contrib. In anticipation of this, 4.9.1 adds some of the necessary machinery to the runner classes, and deprecates a method that only the Theories runner uses, FrameworkMethod#producesType(). The Common Public License that JUnit is released under is now included in the source repository.

Thanks to @pholser for identifying a potential resolution for github#64 and initiating work on it.

Bug fixes

Built-in Rules implementations
- TemporaryFolder should not create files in the current working directory if applying the rule fails [@orfjackal, fixing gh-278]
- TestWatcher and TestWatchman should not call failed for AssumptionViolatedExceptions [@stefanbirkner, fixing gh-296]
Javadoc bugs
- Assert documentation [@stefanbirkner, fixing gh-134]
- ClassRule [@stefanbirkner, fixing gh-254]
- Parameterized [@stefanbirkner, fixing gh-89]
- Parameterized, again [@orfjackal, fixing gh-285]
Miscellaneous
- Useless code in RunAfters [@stefanbirkner, fixing gh-289]
- Parameterized test classes should be able to have @Category annotations [@dsaff, fixing gh-291]
- Error count should be initialized in junit.tests.framework.TestListenerTest [@stefanbirkner, fixing gh-225]
- AssertionFailedError constructor shouldn't call super with null message [@stefanbirkner, fixing gh-318]
- Clearer error message for non-static inner test classes [@stefanbirkner, fixing gh-42]

Minor changes

Description, Result and Failure are Serializable [@ephox-rob, closing gh-101]
FailOnTimeout is reusable, allowing for retrying Rules [@stefanbirkner, closing gh-265]
New ErrorCollector.checkThat overload, that allows you to specify a reason [@drothmaler, closing gh-300]

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