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# frozen_string_literal: true
module Tooling
class TestMapPacker
SEPARATOR = '/'.freeze
MARKER = 1
def pack(map)
map.transform_values(&method(:create_tree_from_tests))
end
def unpack(compact_map)
compact_map.transform_values(&method(:retrieve_tests_from_tree))
end
private
def create_tree_from_tests(tests)
tests.inject({}) do |tree, test|
segments = test.split(SEPARATOR)
branch = create_branch_from_segments(segments)
deep_merge(tree, branch)
end
end
def create_branch_from_segments(segments)
segments.reverse.inject(MARKER) { |node, parent| { parent => node } }
end
def deep_merge(hash, other)
hash.merge(other) do |_, this_val, other_val|
if this_val.is_a?(Hash) && other_val.is_a?(Hash)
deep_merge(this_val, other_val)
else
other_val
end
end
end
def retrieve_tests_from_tree(tree)
traverse(tree).inject([]) do |tests, test|
tests << test
end
end
def traverse(tree, segments = [], &block)
return to_enum(__method__, tree, segments) unless block_given?
if tree == MARKER
return yield segments.join(SEPARATOR)
end
tree.each do |key, value|
traverse(value, segments + [key], &block)
end
end
end
end
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