class Test::Unit::DataSets

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 4
def initialize
  @variables = []
  @procs = []
  @value_sets = []
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 21
def <<(data_set)
  add(data_set)
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 66
def ==(other)
  @variables == other.instance_variable_get(:@variables) and
    @procs == other.instance_variable_get(:@procs) and
    @value_sets == other.instance_variable_get(:@value_sets)
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 10
def add(data_set, options=nil)
  options ||= {}
  if data_set.respond_to?(:call)
    @procs << [data_set, options]
  elsif data_set.is_a?(Array)
    @variables << [data_set, options]
  else
    @value_sets << [data_set, options]
  end
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 42
def each
  variables = @variables
  value_sets = @value_sets
  @procs.each do |proc, options|
    data_set = proc.call
    case data_set
    when Array
      variables += [[data_set, options]]
    else
      value_sets += [[data_set, options]]
    end
  end

  value_sets.each do |values, _options|
    values.each do |label, data|
      yield(label, data)
    end
  end

  each_pattern(variables) do |label, data|
    yield(label, data)
  end
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 72
def eql?(other)
  self == other
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 76
def hash
  [@variables, @procs, @value_sets].hash
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 25
def have_keep?
  each_data_set do |_, options|
    return true if options[:keep]
  end
  false
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 32
def keep
  new_data_sets = self.class.new
  each_data_set do |data_set, options|
    next if options.nil?
    next unless options[:keep]
    new_data_sets.add(data_set, options)
  end
  new_data_sets
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 81
def each_data_set(&block)
  @procs.each(&block)
  @variables.each(&block)
  @value_sets.each(&block)
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 87
def each_pattern(variables)
  grouped_variables = variables.group_by do |_, options|
    options[:group]
  end
  grouped_variables.each do |group, group_variables|
    each_raw_pattern(group_variables) do |cell|
      label = String.new
      label << "group: #{group.inspect}" unless group.nil?
      data = {}
      cell.each do |variable, pattern, pattern_label|
        label << ", " unless label.empty?
        label << "#{variable}: #{pattern_label}"
        data[variable] = pattern
      end
      yield(label, data)
    end
  end
end

# File test-unit-3.6.1/lib/test/unit/data-sets.rb, line 106
def each_raw_pattern(variables, &block)
  return if variables.empty?

  sorted_variables = variables.sort_by do |(variable, _), _|
    variable
  end
  all_patterns = sorted_variables.collect do |(variable, patterns), _|
    if patterns.is_a?(Hash)
      patterns.collect do |pattern_label, pattern|
        [variable, pattern, pattern_label]
      end
    else
      patterns.collect do |pattern|
        [variable, pattern, pattern.inspect]
      end
    end
  end
  all_patterns[0].product(*all_patterns[1..-1], &block)
end