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= microtest
* http://github.com/mhennemeyer/microtest/
== DESCRIPTION:
MicroTest is a minimal testing framework.
It works transactional without setup and teardown.
It goes great together with matchy.
It lets you explicitly set the current self object
for a testing block.
MicroTest is partially inspired by this Blog Post:
http://pragdave.blogs.pragprog.com/pragdave/2008/03/playing-with-a.html
== FEATURES:
MicroTest works with testing blocks.
Each testing block sets up a context in which assertions
can be made. The context will be cleaned up after the testing block ends.
And the context will be passed into nested testing blocks.
You can explicitly set the current self object for a testing block.
=== Transactional:
Methods, instancevariables and constants are all taken from outer to inner blocks -
but all that is done to them in the inner block will not persist after the inner block ends.
It works with matchy, so you can use familiar obj.should matcher syntax.
== SYNOPSIS:
1. plain microtest without matchy
require "rubygems"
require "microtest"
testing "a variable with a value of 1" do
@var = 1
testing "is 1" do
assert @var == 1
end
testing "one added and it is 2" do
@var += 1
assert @var == 2
end
# @var has not been changed!
assert @var == 1
end
2. with matchy
require "rubygems"
require "microtest"
require "matchy"
testing "with nesting" do
testing "Some bogus expectations" do
nil.should be_nil
1.should be(1)
1.should_not <= 0
var = 5
lambda {var += 1}.should change {var}.from(5).to(6)
end
# Transactional behavior: Methods
def m;"m";end
testing "sees method" do
m.should == "m"
end
testing "introduce method in testing block" do
def m2;"m2";end
end
# method defined in test block is not present in context:
raise if defined?(m2)
testing "methods introduced in other test block are not present" do
defined?(m2).should be_nil
end
# Transactional behavior: Instance Variables
@var1 = 1
testing "sees instance variables" do
@var1.should eql(1)
end
testing "introduce instance variable" do
@var2 = 2
end
# instance variable defined in test block is not present in context:
raise if defined?(@var2)
testing "instance variables introduced in other test block are not present" do
defined?(@var2).should be_nil
end
testing "change instance variable" do
@var1 += 1
end
# value of nstance variable remains the same in context
raise if @var1 != 1
testing "value of nstance variable remains the same in other testing block" do
@var1.should eql(1)
end
# Transactional behavior: Constants
M = 1
testing "sees constants" do
M.should == 1
end
testing "introduce constants" do
M2 = 2
end
# constant defined in test block is not present in context:
raise if defined?(M2)
testing "constants introduced in other test block are not present" do
defined?(M2).should be_nil
end
# Transactional behavior: Locals
testing "Introduce local" do
local = 1
end
# local defined in test block should not be accessible in context
raise if defined?(local)
# Transactional behavior: Object attributes
@obj = Class.new do |klass|
attr_accessor :var
def initialize
@var = 1
end
end.new
testing "Changing objects attribute" do
@obj.var.should == 1
@obj.var = 2
end
# Objects attribute should not be changed in context
raise if @obj.var != 1
testing "Objects attribute should not be changed subsequent test block" do
@obj.var.should == 1
end
end
== REQUIREMENTS:
Has no requirements, but you should use it with matchy:
sudo gem install matchy
== INSTALL:
sudo gem install microtest
== LICENSE:
(The MIT License)
Copyright (c) 2009 Matthias Hennemeyer
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.