Hello,
Today I’m proud to release Bacon 0.9.
= Bacon – a small RSpec clone.
“Truth will sooner come out from error than from confusion.”
—Francis Bacon
Bacon is a small RSpec clone weighing less than 300 LoC but
nevertheless providing all essential features.
== Whirl-wind tour
require 'bacon'
describe 'A new array' do
before do
@ary = Array.new
end
it 'should be empty' do
@ary.should.be.empty
@ary.should.not.include 1
end
it 'should have zero size' do
@ary.size.should.equal 0
@ary.size.should.be.close 0.1, 0.5
end
it 'should raise on trying fetch any index' do
lambda { @ary.fetch 0 }.
should.raise(IndexError).
message.should.match(/out of array/)
# Alternatively:
should.raise(IndexError) { @ary.fetch 0 }
end
it 'should have an object identity' do
@ary.should.not.be.same_as Array.new
end
# Custom assertions are trivial to do, they are lambdas returning
a
# boolean vale:
palindrome = lambda { |obj| obj == obj.reverse }
it ‘should be a palindrome’ do
@ary.should.be.a palindrome
end
it 'should have super powers' do
should.flunk "no super powers found"
end
end
Now run it:
$ bacon whirlwind.rb
A new array
- should be empty
- should have zero size
- should raise on trying fetch any index
- should have an object identity
- should be a palindrome
- should have super powers [FAILED]
Bacon::Error: no super powers found
./whirlwind.rb:39: A new array - should have super powers
./whirlwind.rb:38
./whirlwind.rb:3
6 specifications (9 requirements), 1 failures, 0 errors
If you want shorter output, use the Test::Unit format:
$ bacon -q whirlwind.rb
.....F
Bacon::Error: no super powers found
./whirlwind.rb:39: A new array - should have super powers
./whirlwind.rb:38
./whirlwind.rb:3
6 tests, 9 assertions, 1 failures, 0 errors
It also supports TAP:
$ bacon -p whirlwind.rb
ok 1 - should be empty
ok 2 - should have zero size
ok 3 - should raise on trying fetch any index
ok 4 - should have an object identity
ok 5 - should be a palindrome
not ok 6 - should have super powers: FAILED
# Bacon::Error: no super powers found
# ./whirlwind.rb:39: A new array - should have super powers
# ./whirlwind.rb:38
# ./whirlwind.rb:3
1..6
# 6 tests, 9 assertions, 1 failures, 0 errors
$ bacon -p whirlwind.rb | taptap -q
Tests took 0.00 seconds.
FAILED tests 6
6) should have super powers: FAILED
Failed 1/6 tests, 83.33% okay.
(taptap is available from Index of /repos/taptap/)
== Implemented assertions
- should. and should.be.
- should.equal
- should.match
- should.be.identical_to / should.be.same_as
- should.raise(*exceptions) { }
- should.change { }
- should.throw(symbol) { }
- should.satisfy { |object| }
== Added core predicates
- Object#true?
- Object#false?
- Proc#change?
- Proc#raise?
- Proc#throw?
- Numeric#close?
[… for more documentation see README …]
== Object#should
You can use Object#should outside of contexts, where the result of
assertion will be returned as a boolean. This is nice for
demonstrations, quick checks and doctest tests.
>> require 'bacon'
>> (1 + 1).should.equal 2
=> true
>> (6*9).should.equal 42
=> false
== Where can I get it?
You can download Bacon 0.2 at
http://chneukirchen.org/releases/bacon-0.9.0.tar.gz
http://rubyforge.org/projects/testspec
Alternatively, you can checkout from the development repository with:
darcs get http://chneukirchen.org/repos/bacon
(Patches using “darcs send” are most welcome.)
== Installing with RubyGems
A Gem of Bacon is available. You can install it with:
gem install bacon
I also provide a local mirror of the gems (and development snapshots)
at my site:
gem install bacon --source http://chneukirchen.org/releases/gems
== Contact
Please mail bugs, suggestions and patches to
mailto:[email protected].
Darcs repository (“darcs send” is welcome for patches):
http://chneukirchen.org/repos/bacon
== Copying
Copyright (C) 2007, 2008 Christian N.
<InfoPage of Leah Neukirchen -- leah2>
Bacon is freely distributable under the terms of an MIT-style license.
See COPYING or The MIT License – Open Source Initiative.
== Links
Behavior-Driven Development:: http://behaviour-driven.org/
RSpec:: http://rspec.rubyforge.org/
test/spec:: http://test-spec.rubyforge.org/
Christian N.:: http://chneukirchen.org/
Happy hacking and have a nice day,
Christian N.
