Module: SimpleCov::ResultMerger

Defined in:
lib/simplecov/result_merger.rb

Overview

Singleton that is responsible for caching, loading and merging SimpleCov::Results into a single result for coverage analysis based upon multiple test suites.

Class Method Summary collapse

Class Method Details

.merged_resultObject

Gets all SimpleCov::Results from cache, merges them and produces a new SimpleCov::Result with merged coverage data and the command_name for the result consisting of a join on all source result's names


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# File 'lib/simplecov/result_merger.rb', line 60

def merged_result
  merged = {}
  results.each do |result|
    merged = result.original_result.merge_resultset(merged)
  end
  result = SimpleCov::Result.new(merged)
  # Specify the command name
  result.command_name = results.map(&:command_name).sort.join(", ")
  result
end

.resultsObject

Gets the resultset hash and re-creates all included instances of SimpleCov::Result from that. All results that are above the SimpleCov.merge_timeout will be dropped. Returns an array of SimpleCov::Result items.


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# File 'lib/simplecov/result_merger.rb', line 43

def results
  results = []
  resultset.each do |command_name, data|
    result = SimpleCov::Result.from_hash(command_name => data)
    # Only add result if the timeout is above the configured threshold
    if (Time.now - result.created_at) < SimpleCov.merge_timeout
      results << result
    end
  end
  results
end

.resultsetObject

Loads the cached resultset from YAML and returns it as a Hash


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# File 'lib/simplecov/result_merger.rb', line 18

def resultset
  if stored_data
    begin
      SimpleCov::JSON.parse(stored_data)
    rescue
      {}
    end
  else
    {}
  end
end

.resultset_pathObject

The path to the .resultset.json cache file


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# File 'lib/simplecov/result_merger.rb', line 9

def resultset_path
  File.join(SimpleCov.coverage_path, '.resultset.json')
end

.resultset_writelockObject


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# File 'lib/simplecov/result_merger.rb', line 13

def resultset_writelock
  File.join(SimpleCov.coverage_path, '.resultset.json.lock')
end

.store_result(result) ⇒ Object

Saves the given SimpleCov::Result in the resultset cache


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# File 'lib/simplecov/result_merger.rb', line 72

def store_result(result)
  File.open(resultset_writelock, "w+") do |f|
    f.flock(File::LOCK_EX)
    new_set = resultset
    command_name, data = result.to_hash.first
    new_set[command_name] = data
    File.open(resultset_path, "w+") do |f_|
      f_.puts SimpleCov::JSON.dump(new_set)
    end
  end
  true
end

.stored_dataObject

Returns the contents of the resultset cache as a string or if the file is missing or empty nil


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# File 'lib/simplecov/result_merger.rb', line 31

def stored_data
  if File.exist?(resultset_path) and stored_data = File.read(resultset_path) and stored_data.length >= 2
    stored_data
  else
    nil
  end
end