TEST_CHANGES_SINCE = Time.now - 600

# Look up tests for recently modified sources.
def recent_tests(source_pattern, test_path, touched_since = 10.minutes.ago)
  FileList[source_pattern].map do |path|
    if File.mtime(path) > touched_since
      test = "#{test_path}/#{File.basename(path, '.rb')}_test.rb"
      test if File.exists?(test)
    end
  end.compact
end


desc 'Test all units and functionals'
task :test do
  Rake::Task["test:units"].invoke       rescue got_error = true
  Rake::Task["test:functionals"].invoke rescue got_error = true
  
  if File.exist?("test/integration")
    Rake::Task["test:integration"].invoke rescue got_error = true
  end

  raise "Test failures" if got_error
end

namespace :test do
  desc 'Test recent changes'
  Rake::TestTask.new(:recent => "db:test:prepare") do |t|
    since = TEST_CHANGES_SINCE
    touched = FileList['test/**/*_test.rb'].select { |path| File.mtime(path) > since } +
      recent_tests('app/models/*.rb', 'test/unit', since) +
      recent_tests('app/controllers/*.rb', 'test/functional', since)

    t.libs << 'test'
    t.verbose = true
    t.test_files = touched.uniq
  end

  desc "Run the unit tests in test/unit"
  Rake::TestTask.new(:units => "db:test:prepare") do |t|
    t.libs << "test"
    t.pattern = 'test/unit/**/*_test.rb'
    t.verbose = true
  end

  desc "Run the functional tests in test/functional"
  Rake::TestTask.new(:functionals => "db:test:prepare") do |t|
    t.libs << "test"
    t.pattern = 'test/functional/**/*_test.rb'
    t.verbose = true
  end

  desc "Run the integration tests in test/integration"
  Rake::TestTask.new(:integration => "db:test:prepare") do |t|
    t.libs << "test"
    t.pattern = 'test/integration/**/*_test.rb'
    t.verbose = true
  end

  desc "Run the plugin tests in vendor/plugins/**/test (or specify with PLUGIN=name)"
  Rake::TestTask.new(:plugins => :environment) do |t|
    t.libs << "test"

    if ENV['PLUGIN']
      t.pattern = "vendor/plugins/#{ENV['PLUGIN']}/test/**/*_test.rb"
    else
      t.pattern = 'vendor/plugins/**/test/**/*_test.rb'
    end

    t.verbose = true
  end
end