chuhai/dist/reporters/markdown.js

Test driven benchmarking.

'use strict';

var StackUtils = require('stack-utils');

module.exports = function (suite) {
  if (suite.name && suite.name.length !== 0) {
    console.log('## ' + suite.name);
  }
  console.log('');

  var errored = [];

  suite.sort(function (b, a) {
    return a.stats.mean + a.stats.moe > b.stats.mean + b.stats.moe ? -1 : 1;
  }).each(function (b) {
    var m = [String(b)];
    if (b.error) {
      errored.push(b);
      m.push('*error*');
    }
    if (b.options.burn) {
      m.push('*burn in*');
    }
    console.log('    ' + m.join(' '));
  });

  if (suite.length > 1) {
    console.log('');

    var fastest = suite.filter(function (d) {
      return d.options.burn !== true;
    }).filter('fastest').map('name').join(', ');

    console.log('*Fastest is __' + fastest + '__*');
  }

  console.log('');

  if (errored.length > 0) {
    errored.forEach(function (b, i) {
      if (b.error.stack.indexOf('From previous event') > -1) {
        // skip errors already caught by ava
        return;
      }
      console.log('```');
      console.log(i + 1 + '. ' + String(b) + ' ' + prettyStack(b.error.stack));
      console.log('```');
      console.error('');
    });
  }
};

var chuhaiInternals = /\/chuhai\/dist\//;
var chuhaiDependencies = /\/node_modules\/(?:bluebird|benchmark|lodash)\//;

var stackUtils = new StackUtils({
  cwd: process.cwd(),
  internals: [chuhaiInternals, chuhaiDependencies] });

function prettyStack(stack) {
  if (!stack) {
    return '';
  }

  var title = stack.split('\n')[0];
  var lines = stackUtils.clean(stack).split('\n').filter(function (s) {
    return s.length > 0;
  }).map(function (s) {
    return '    at ' + s;
  }).join('\n');

  return title + '\n' + lines;
}