Class: RSpec::Covers::Tracer::Composite

Inherits:
Object
  • Object
show all
Defined in:
lib/rspec/covers/tracer/composite.rb

Constant Summary collapse

STRATEGIES = 
{
  nc: NC,
  ncc: NCC,
  lcba: LCBA,
  dynamic: Dynamic
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(config, corpus: nil) ⇒ Composite

Returns a new instance of Composite.



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# File 'lib/rspec/covers/tracer/composite.rb', line 22

def initialize(config, corpus: nil)
  @config = config
  @inventory = ProductionInventory.new(config)
  @corpus = corpus
end

Instance Method Details

#suggest(example:, call_log:, executed_locations:, corpus: @corpus, limit: @config.suggestion_limit) ⇒ Object 



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# File 'lib/rspec/covers/tracer/composite.rb', line 28

def suggest(example:, call_log:, executed_locations:, corpus: @corpus, limit: @config.suggestion_limit)
  candidates = candidates_for(call_log, executed_locations)
  return [] if candidates.empty?

  weighted_scores = Hash.new(0.0)
  reasons = Hash.new { |hash, key| hash[key] = [] }

  STRATEGIES.each do |name, strategy_class|
    weight = @config.suggestion_weights.fetch(name, 1.0).to_f
    next if weight.zero?

    strategy_scores = strategy_class.new.score(
      example: example,
      call_log: call_log,
      candidates: candidates,
      corpus: corpus
    )

    strategy_scores.each do |label, score|
      next unless score.positive?

      weighted_scores[label] += score * weight
      reasons[label] << name
    end
  end

  ranked = weighted_scores.sort_by { |_, score| -score }
  ranked = ranked.first(limit) if limit

  ranked.map do |label, score|
    Suggestion.new(label: label, score: score, reasons: reasons[label])
  end
end