minitest version 5.0.0 has been released!
* home: <https://github.com/seattlerb/minitest>
* rdoc: <http://docs.seattlerb.org/minitest>
* vim: <https://github.com/sunaku/vim-ruby-minitest>
minitest provides a complete suite of testing facilities supporting
TDD, BDD, mocking, and benchmarking.
"I had a class with Jim Weirich on testing last week and we were
allowed to choose our testing frameworks. Kirk Haines and I were
paired up and we cracked open the code for a few test
frameworks...
I MUST say that minitest is *very* readable / understandable
compared to the 'other two' options we looked at. Nicely done and
thank you for helping us keep our mental sanity."
-- Wayne E. Seguin
minitest/unit is a small and incredibly fast unit testing framework.
It provides a rich set of assertions to make your tests clean and
readable.
minitest/spec is a functionally complete spec engine. It hooks onto
minitest/unit and seamlessly bridges test assertions over to spec
expectations.
minitest/benchmark is an awesome way to assert the performance of your
algorithms in a repeatable manner. Now you can assert that your newb
co-worker doesn't replace your linear algorithm with an exponential
one!
minitest/mock by Steven Baker, is a beautifully tiny mock (and stub)
object framework.
minitest/pride shows pride in testing and adds coloring to your test
output. I guess it is an example of how to write IO pipes too. 
minitest/unit is meant to have a clean implementation for language
implementors that need a minimal set of methods to bootstrap a working
test suite. For example, there is no magic involved for test-case
discovery.
"Again, I can't praise enough the idea of a testing/specing
framework that I can actually read in full in one sitting!"
-- Piotr Szotkowski
Comparing to rspec:
rspec is a testing DSL. minitest is ruby.
-- Adam Hawkins, "Bow Before MiniTest"
minitest doesn't reinvent anything that ruby already provides, like:
classes, modules, inheritance, methods. This means you only have to
learn ruby to use minitest and all of your regular OO practices like
extract-method refactorings still apply.
Changes:
### 5.0.0 / 2013-05-10
Oh god... here we go...
Minitest 5:
Deaths in the family:
* MiniTest.runner is dead. No more manager objects.
* MiniTest::Unit#record is dead. Use a Reporter instance instead.
* MiniTest::Unit._run_* is dead. Runnable things are responsible for their own runs.
* MiniTest::Unit.output is dead. No more centralized IO.
Major (oft incompatible) changes:
* Renamed MiniTest to Minitest. Your pinkies will thank me. (aliased to MiniTest)
* Removed MiniTest::Unit entirely. No more manager objects.
* Added Minitest::Runnable. Everything minitest can run subclasses this.
* Renamed MiniTest::Unit::TestCase to Minitest::Test (subclassing Runnable).
* Added Minitest::Benchmark.
* Your benchmarks need to move to their own subclass.
* Benchmarks using the spec DSL have to have "Bench" somewhere in their describe.
* MiniTest::Unit.after_tests moved to Minitest.after_tests
* MiniTest::Unit.autorun is now Minitest.autorun. Just require minitest/autorun pls.
* Removed ParallelEach#grep since it isn't used anywhere.
* Renamed Runnable#__name__ to Runnable#name (but uses @NAME internally).
* Runnable#run needs to return self. Allows for swapping of results as needed.
Minor moves:
* Moved Assertions module to minitest/assertions.rb
* Moved Expectations module to minitest/expectations.rb
* Moved Test to minitest/test.rb
* Moved everything else in minitest/unit.rb to minitest.rb
* minitest/unit.rb is now just a small (user-test only) compatibility layer.
* Moved most of minitest/pride into minitest/pride_plugin.
* minitest/pride now just activates pride.
* Moved ParallelEach under Minitest.
Additions:
* Added a plugin system that can extend command-line options.
* Added Minitest.extensions.
* Added Minitest.reporter (only available during startup).
* Added Minitest.run(args). This is the very top of any Minitest run.
* Added Minitest::Reporter. Everything minitest can report goes through here.
* Minitest.reporter is a composite so you can add your own.
* Added Minitest::CompositeReporter. Much easier to extend with your own reporters.
* Added UnexpectedError, an Assertion subclass, to wrap up errors.
* Minitest::Test#run is now freakin' beautiful. 47 -> 17 loc
Other:
* Removed Object.infect_with_assertions (it was already dead code).
* Runnables are responsible for knowing their result_code (eg "." or "F").
* Minitest.autorun now returns boolean, not exit code.
* Added FAQ entry for extending via modules. (phiggins)
* Implement Runnable#dup to cleanse state back to test results. Helps with serialization. pair:tenderlove
* Moved ParallelEach under Minitest.
* Runnable#run needs to return self. Allows for swapping of results as needed.
* Minitest.init_plugins passes down options.
* Minitest.load_plugins only loads once.
* Fixed minitest/pride to work with rake test loader again. (tmiller)
* Added count/size to ParallelEach to fix use w/in stdlib's test/unit. 
(btaitelb)
Voodoo:
* Removed mutex from minitest.rb (phiggins)
* Removed mutex from test.rb (phiggins)
* Removed Minitest::Reporter.synchronize (phiggins)
* Removed Minitest::Test.synchronize (phiggins)
* Upon loading minitest/parallel_each, record, capture_io and capture_subprocess_io are doped with synchronization code. (phiggins)