Module: OyenCov::CoveragePeekDelta

Defined in:
lib/oyencov/coverage_peek_delta.rb

Constant Summary collapse

PWD = 
Dir.pwd
@@previous_method_hits = 
{}

Class Method Summary collapse

Class Method Details

.reset! ⇒ Object 



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# File 'lib/oyencov/coverage_peek_delta.rb', line 73

def self.reset!
  @@previous_method_hits = {}
end

.snapshot_delta ⇒ Hash

  1. Filter only the keys with PWD.

  2. ‘transform_keys` and remove the PWD

  3. Use MRP to get the impt lines.

Returns:

  • (Hash) —

    Method name => line num executions diff from last time



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# File 'lib/oyencov/coverage_peek_delta.rb', line 29

def self.snapshot_delta
  current_peek = Coverage.peek_result

  # OyenCov::Logger.log "1st current_peek size = #{current_peek.size}, keys like: #{current_peek.keys[0, 3]}"

  # Filter into project
  filtered = current_peek.select do |k, _|
    /^#{PWD}/o.match?(k)
  end.transform_keys do |k|
    k.gsub(/#{PWD}\//o, "")
  end

  # OyenCov::Logger.log "2nd filtered size = #{filtered.size}, keys like: #{filtered.keys[0, 3]}"

  # Filter inside project to just the paths
  filtered = filtered.select do |k, _|
    /^(app|lib)/.match?(k)
  end

  # OyenCov::Logger.log "3rd filtered size = #{filtered.size}, keys like: #{filtered.keys[0, 3]}"

  # Find the method ranges, set
  current_method_hits = {}
  filtered.each_pair do |fpath, line_hits|
    MethodRangeParser[fpath]&.each_pair do |method_name, line_num|
      # puts [method_name, line_num, line_hits[line_num]]
      next if line_num.nil? || line_hits[line_num].nil?
      current_method_hits[method_name] = line_hits[line_num]
    end
  end

  # Compare and delta
  new_method_hits = {}
  current_method_hits.each_pair do |method_name, counter|
    new_hits = counter - (@@previous_method_hits[method_name] || 0)
    if new_hits > 0
      new_method_hits[method_name] = new_hits
    end
  end

  @@previous_method_hits = current_method_hits
  new_method_hits
end

.start ⇒ Object

We go a bit softer here. If there are other libraries starting

coverage then don't throw exception.



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# File 'lib/oyencov/coverage_peek_delta.rb', line 16

def self.start
  reset!

  unless Coverage.running?
    Coverage.start
  end
end