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Contents
module ParallelTests
class Grouper
def self.in_groups(items, num_groups)
groups = Array.new(num_groups){ [] }
until items.empty?
num_groups.times do |group_number|
groups[group_number] << items.shift
end
end
groups.map!(&:sort!)
end
def self.in_even_groups_by_size(items_with_sizes, num_groups, options={})
groups = Array.new(num_groups){{:items => [], :size => 0}}
# add all files that should run in a single process to one group
(options[:single_process]||[]).each do |pattern|
matched, items_with_sizes = items_with_sizes.partition{|item, size| item =~ pattern }
smallest = smallest_group(groups)
matched.each{|item,size| add_to_group(smallest, item, size) }
end
# add all other files
largest_first(items_with_sizes).each do |item, size|
smallest = smallest_group(groups)
add_to_group(smallest, item, size)
end
groups.map!{|g| g[:items].sort }
end
def self.largest_first(files)
files.sort_by{|item, size| size }.reverse
end
private
def self.smallest_group(groups)
groups.min_by{|g| g[:size] }
end
def self.add_to_group(group, item, size)
group[:items] << item
group[:size] += size
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems