SharpDevelop 4 has been updated to support unit testing with
IronRuby.
It uses the Ruby testing framework Test::Unit so you will need
to have the Ruby standard library on your machine. IronRuby 1.0
targets Ruby 1.8.6 and includes it in its download so one way to
get the Ruby standard library is to download
IronRuby from codeplex
and install it.
SharpDevelop then needs to know where the Ruby standard library
exists. This can be done by setting the path to the Ruby library in
the Options dialog (Tools | Options | Tools | Ruby | Path),
as shown below.
Now we need to create some tests. Create two IronRuby projects
one to hold the unit tests and the other to hold the code that will
be tested.
In the test project we add the following simple test class that
has two tests, one that will pass and one that will fail.
require 'test/unit'
require 'MyClass'
class MyClassTests < Test::Unit::TestCase
def test_pass
myclass = MyClass.new
assert_equal(1, myclass.return_one(), 'Test should work')
end
def test_fail
myclass = MyClass.new
assert_equal(2, myclass.return_one(), 'Test should fail')
end
end
Once this class is created you should see the unit tests
displayed in the Unit Tests window (View | Tools | Unit
Tests).
In the other project we create a new class with the following
code.
class MyClass
def return_one
return 1
end
end
Now in the project containing the unit tests we need to add a
project reference to the project containing MyClass. This is so
that SharpDevelop can set up the load paths correctly allowing
MyClass to be found when the unit tests are run.
Once the project reference is added the unit tests can be run in
the normal way by right clicking in the Unit Tests window
and selecting Run tests. You can run all the tests in a
project, all tests in a class or a single test method.
The output generated when running the unit tests is shown in the
Output window.
Test failures are displayed in the Errors window.
Clicking an error will open the corresponding code in the
editor.
