How to skip some test folder when running rake test

Question

I have the following configuration for running tests of a gem:

require 'rake/testtask'

Rake::TestTask.new(:test) do |t|
  t.libs << 'lib'
  t.libs << 'test'
  t.pattern = 'test/**/*_test.rb'
  t.verbose = false
end

inside my test folder I have a folder (let's say skipped_tests) with tests which I don't want to test with this task. Is it possible to adjust pattern to skip particular folder, something like the following:

t.pattern = 'test/^skipped_tests/*_test.rb'

Please share your thoughts on this.

Thanks

Answer 1

You could use test_files instead of pattern like this:

t.test_files = Dir['test/**/*_test.rb'].reject do |path| 
  path.include?('skipped_test')
end

Answer 2

One option is to use a FileList with the test_files attribute. It may be more concise (and/or precise) than performing the reject manually.

So the OP's example would become:

require 'rake/testtask'

Rake::TestTask.new(:test) do |t|
  t.libs << 'lib'
  t.libs << 'test'
  t.test_files = FileList['test/**/*_test.rb'].exclude('test/skipped_tests/**/*')
  t.verbose = false
end