lib/knapsack_pro/test_file_finder.rb
# frozen_string_literal: true
module KnapsackPro
class TestFileFinder
def self.call(test_file_pattern, test_file_list_enabled: true)
new(test_file_pattern, test_file_list_enabled).call
end
# finds slow test files on disk based on ENV patterns
# returns example: [{ 'path' => 'a_spec.rb' }]
def self.slow_test_files_by_pattern(adapter_class)
raise 'KNAPSACK_PRO_SLOW_TEST_FILE_PATTERN is not defined' unless KnapsackPro::Config::Env.slow_test_file_pattern
test_file_pattern = KnapsackPro::TestFilePattern.call(adapter_class)
test_file_entities = call(test_file_pattern)
slow_test_file_entities = call(KnapsackPro::Config::Env.slow_test_file_pattern, test_file_list_enabled: false)
# slow test files (KNAPSACK_PRO_SLOW_TEST_FILE_PATTERN)
# should be subset of test file pattern (KNAPSACK_PRO_TEST_FILE_PATTERN)
slow_test_file_entities & test_file_entities
end
# Args:
# test_file_entities_to_run - it can be list of slow test files that you want to run
# Return:
# subset of test_file_entities_to_run that are present on disk and it is subset of tests matching pattern KNAPSACK_PRO_TEST_FILE_PATTERN
# Thanks to that we can select only slow test files that are within list of test file pattern we want to run tests for
def self.select_test_files_that_can_be_run(adapter_class, test_file_entities_to_run)
test_file_pattern = KnapsackPro::TestFilePattern.call(adapter_class)
test_file_entities = call(test_file_pattern)
test_file_paths_existing_on_disk = KnapsackPro::TestFilePresenter.paths(test_file_entities)
selected_test_files = []
test_file_entities_to_run.each do |test_file_entity|
if test_file_paths_existing_on_disk.include?(test_file_entity.fetch('path'))
selected_test_files << test_file_entity
end
end
selected_test_files
end
def initialize(test_file_pattern, test_file_list_enabled)
@test_file_pattern = test_file_pattern
@test_file_list_enabled = test_file_list_enabled
end
def call
test_file_hashes = []
test_files.each do |test_file_path|
test_file_hashes << test_file_hash_for(test_file_path)
end
test_file_hashes
end
private
attr_reader :test_file_pattern, :test_file_list_enabled
def test_files
if test_file_list_enabled && KnapsackPro::Config::Env.test_file_list
return KnapsackPro::Config::Env.test_file_list.split(',').map(&:strip)
end
if test_file_list_enabled && KnapsackPro::Config::Env.test_file_list_source_file
return File.read(KnapsackPro::Config::Env.test_file_list_source_file).split(/\n/)
end
test_file_paths = Dir.glob(test_file_pattern).uniq
excluded_test_file_paths =
if KnapsackPro::Config::Env.test_file_exclude_pattern
Dir.glob(KnapsackPro::Config::Env.test_file_exclude_pattern).uniq
else
[]
end
(test_file_paths - excluded_test_file_paths).sort
end
def test_file_hash_for(test_file_path)
{
'path' => TestFileCleaner.clean(test_file_path)
}
end
end
end