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Caricature - Bringing simple mocking to the DLR

DESCRIPTION:

This project aims to make interop between IronRuby objects and .NET objects easier. The idea is that it integrates nicely with bacon and later rspec and that it transparently lets you mock ironruby ojbects as well as CLR objects/interfaces. Caricature handles interfaces, interface inheritance, CLR objects, CLR object instances, Ruby classes and instances of Ruby classes.

From the start I wanted to do away with names like mock, stub, record, replay, verify etc. Instead I took the advice from Roy Osherhove and went with a name of Isolation for creating a mock.

An Isolation will create what in Rhino.Mocks would be called a DynamicMock (but can be a partial too) :) In Moq it would be the Loose mocking strategy.

The naming of the methods for creating mocks is the one that JP Boodhoo proposed WhenToldTo and WasToldTo. To specify a stub/expectation on an isolation you have one and only one way of doing that with the method called when_receiving. Then only if you're interested in asserting if a method has been called you can use the did_receive? method for this.

It may be very important to note that when you're going to be isolating CLR classes to be used in other CLR classes you still need to obide by the CLR rules. That means if you want to redefine a method you'll need to make sure it's marked as virtual. Static types are still governed by static type rules. I'm working on a solution around those problems but for the time being this is how it has to be.

FEATURES/PROBLEMS:

  • [CLR-to-CLR mocking]: Caricature won't mock static methods because you can't override those according to CLR rules

  • [CLR-to-CLR mocking]: Caricature can only override methods that are marked virtual (CLR rules)

SYNOPSIS:

isolation = Isolation.for(Ninja)
isolation.when_receiving(:attack) do |exp|
    exp.with(:shuriken)
    exp.return(3)
end

Battle.new(mock)
battle.combat

isolation.should.have_received?(:attack)

REQUIREMENTS:

  • To use the caricature library you need to have uuidtools installed

(sudo) gem install uuidtools (sudo) igem install uuidtools

INSTALL:

(sudo) gem install caricature

LICENSE:

Caricature – A simple mocking framework for IronRuby

Copyright © 2009, Caricature Team github.com/casualjim/caricature All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the
above copyright notice, this list of conditions and
the following disclaimer.

* Redistributions in binary form must reproduce
the above copyright notice, this list of conditions
and the following disclaimer in the documentation
and/or other materials provided with the distribution.

* Neither the name of the Caricature Team nor the
names of its contributors may be used to endorse
or promote products derived from this software
without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

[This is the BSD license, see

http://www.opensource.org/licenses/bsd-license.php]