Rcov - Specifying rake tasks


#1

I am trying to get a customized rcov rake task working. What I have so
far looks like this:

desc “Rcov code coverage reports”

require ‘rcov/rcovtask’
require ‘spec/rake/spectask’
require ‘cucumber/rake/task’

task :rcov => “rcov:all”

namespace :rcov do

Rcov::RcovTask.new(:all) do
task :rcov => “rcov:cucumber”
end

Cucumber::Rake::Task.new(:cucumber) do |t|

Spec::Rake::SpecTask.new(:rspec) do |t

Rcov::RcovTask.new(:testunit) do |t|

Now, rake rcov:cucumber runs the cucumber rcov task as expected.
However, both rake rcov and rake rcov:all run rake rcov:testunit. I
cannot fathom why. Can someone explain this to me?


#2

I am having a good deal of trouble grappling with how rake tasks are
processed. In my rcov.rake file I have this:

desc “Rcov code coverage reports”

require ‘rcov/rcovtask’
require ‘spec/rake/spectask’
require ‘cucumber/rake/task’

#task :rcov => “rcov:complete”

namespace :rcov do

Cucumber::Rake::Task.new(:cucumber) do |t|
puts "Why am I in the cucumber task?

end

Spec::Rake::SpecTask.new(:rspec) do |t|
puts "Why am I in the rspec task?

end
end

Rcov::RcovTask.new(:testunit) do |t|
puts "Why am I in the rspec task?

end

Rcov::RcovTask.new(:complete) do
puts “What the hell am I doing here?”

end

end

When I run rake rcov:cucumber I see this:

Why am I in the cucumber task?
Why am I in the rspec task?
Why am I in the testunit task?
What the hell am I doing here?

This indicates that the entire rake task is processed regardless of the
argument given, which to me makes no sense at all. Can somebody explain
why I am observing this behaviour?


#3

James B. wrote:

I am having a good deal of trouble grappling with how rake tasks are
processed. In my rcov.rake file I have this:

I think that I have this straightened now.
Cucumber::Rake::Task.new(:cucumber) etc. are factory methods that are
processed as encountered by rake.


#4

James B. wrote:

I think that I have this straightened now.
Cucumber::Rake::Task.new(:cucumber) etc. are factory methods that are
processed as encountered by rake.

Having spent the day delving into Rake and the internals of factory
methods for Rake included with RSpec and Cucumber, I did a little write
up on how to create a custom Rake task for Rcov. I would appreciate it
if people with a deeper knowledge of Rake and Rcov would review this
document and point out any errors or misunderstandings that it may
contain.

The URL is
http://wiki.rubyonrails.org/rails/pages/HowToCustomizeAnRcovRakeTask

Thanks