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require 'openstudio'
require 'openstudio/ruleset/ShowRunnerOutput'
require 'minitest/autorun'
require_relative '../measure.rb'
require 'fileutils'

class FromOpenstudioModel_Test < Minitest::Test
  # method to apply arguments, run measure, and assert results (only populate args hash with non-default argument values)
  def apply_measure_to_model(test_name, args, model_name = nil, result_value = 'Success', warnings_count = 0, info_count = nil)
    # create an instance of the measure
    measure = FromOpenstudioModel.new

    # create an instance of a runner
    runner = OpenStudio::Measure::OSRunner.new(OpenStudio::WorkflowJSON.new)

    if model_name.nil?
      # make an empty model
      model = OpenStudio::Model::Model.new
    else
      # load the test model
      translator = OpenStudio::OSVersion::VersionTranslator.new
      path = OpenStudio::Path.new(File.dirname(__FILE__) + '/' + model_name)
      model = translator.loadModel(path)
      assert(!model.empty?)
      model = model.get
    end

    # get arguments
    arguments = measure.arguments(model)
    argument_map = OpenStudio::Measure.convertOSArgumentVectorToMap(arguments)

    # populate argument with specified hash value if specified
    arguments.each do |arg|
      temp_arg_var = arg.clone
      if args.key?(arg.name)
        assert(temp_arg_var.setValue(args[arg.name]), "could not set #{arg.name} to #{args[arg.name]}.")
      end
      argument_map[arg.name] = temp_arg_var
    end

    # run the measure
    measure.run(model, runner, argument_map)
    result = runner.result

    puts "this is measure #{measure.run(model, runner, argument_map)}"
    # show the output
    puts "measure results for #{test_name}"
    show_output(result)

    # assert that it ran correctly
    if result_value.nil? then result_value = 'Success' end
    assert_equal(result_value, result.value.valueName)

    # check count of warning and info messages
    unless info_count.nil? then assert(result.info.size == info_count) end
    unless warnings_count.nil? then assert(result.warnings.size == warnings_count, "warning count (#{result.warnings.size}) did not match expectation (#{warnings_count})") end

    # if 'Fail' passed in make sure at least one error message (while not typical there may be more than one message)
    if result_value == 'Fail' then assert(result.errors.size >= 1) end

  end

  def test_example_model_with_output_path
    args = {}
    args['openstudio_model'] = File.join(File.dirname(__FILE__) + '/../../../../spec/samples/osm/exampleModel.osm')
    args['output_file_path'] = File.join(File.dirname(__FILE__) + '/output/exampleModel.hbjson')
    apply_measure_to_model(__method__.to_s.gsub('test_',''),args, nil)
  end

  def test_example_model_without_output_path
    args = {}
    args['openstudio_model'] = File.join(File.dirname(__FILE__) + '/../../../../spec/samples/osm/exampleModel.osm')
    apply_measure_to_model(__method__.to_s.gsub('test_',''),args, nil)
  end

end