Uncool is unit test coverage tool. Units, just to be absoluately clear, are methods. So Uncool montiors you test execution and records the methods called aganist target classes.
Uncool works by setting up a #set_trace_func procedure that records all method calls made against a target set of classes. In Uncool parlance the methods are called units and the classes are called targets or namespaces.
Uncool provides a command-line tool called uncool-ruby, which can be used to get a coverage report on any Ruby script(s).
$ uncool-ruby script.rb
The command-line tool is useful in limited cases. More useful it the ability to require ‘uncool’, and based on environment variables, uncool will setup logging automatically. This is especailly useful for running uncool with various test frameworks, as long as they support an -r require option.
For example, here is how we could run a KO![proutils.github.com/ko] test with Uncool coverage.
ns=Example ko -runcool test/features/example_feature.rb
Where ns is the environment variable for setting the targert “namespaces”. More than one namespace can be given by separating them with commas. By default the coverage report will output to ‘$stdout`. To log the results to disc provide the output directory via the out environment variable.
out=log ns=Example ko -runcool test/features/example_feature.rb
This example would then save the output as html under log/uncool/index.html.
To setup “profiles” for different uncool runs, you could simply create ruby script(s) that set these environment variables.
# config/uncool.rb ENV['out'] = 'log' ENV['ns'] = 'Example'
Then require that file first.
$ ko -r./config/uncool.rb -runcool test/features/dummy_feature.rb
Other ways to utilize Uncool for your tests is to invoke the Uncool logger in your test helper script.
# test/test_helper.rb require 'uncool/log' Uncool.log(:output=>'log', :namespaces=>['Example'])
Of course, this will run the Uncool logger exvery time you run a test.
As an alternative you might be able to write your own special runner. For instance, with the KO! test framework a special runner command can be written as easily as:
# script/test_with_uncool require 'uncool/log' Uncool.log(:output=>'log', :namespaces=>['Example']) require 'ko/cli' KO::CLI.run(ARGV)
Then use this script to run tests instead. This provides the most flexability too because the script could also pre-processes ARGV to pull out any special options for Uncool that we might like to use.
(Apache 2.0 License)
Copyright © 2010 Thomas Sawyer
Licensed under the Apache License, Version 2.0 (the “License”); you may not use this program except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.