meilke/grunt-nunit-opencover

var path = require('path'),
temp = require('temp'),
process = require('child_process'),
nunit = require('nunit-command'),
opencover = require('./opencover.js');

module.exports = function(grunt) {

  grunt.registerMultiTask('nunitopencover', 'Runs NUnit console runner through OpenCover.', function() {

    var options = this.options({ nodots: true });
    var cleanup;

    if (!options.result && options.teamcity) {
      temp.track();
      options.result = temp.path({ suffix: '.xml' });
      cleanup = temp.cleanup;
    }

    console.log();
    console.log('NUnit/OpenCover Task Runner');
    console.log();

    var assemblies = nunit.findTestAssemblies(this.filesSrc, options);
    var command = nunit.buildCommand(assemblies, options);

    if (options.cover) {
      command = opencover.wrapCommand(command, options);
    }

    console.log('Running tests in:');
    console.log();
    assemblies.forEach(function(file) { console.log('    ' + file); });
    console.log();

    console.log(command.path + ' ' + command.args.join(' '));
    console.log();

    var taskComplete = this.async();
    var nunitProcess = process.spawn(command.path, command.args, { windowsVerbatimArguments: true });

    var log = function(message) { console.log(message.toString('utf8')); };

    nunitProcess.stdout.on('data', log);
    nunitProcess.stderr.on('data', log);

    nunitProcess.on('exit', function(code) { 
      if (options.teamcity) console.log(nunit.createTeamcityLog(options.result).join(''));
      if (cleanup) cleanup();
      if (code > 0) grunt.fail.fatal('Tests failed.');
      taskComplete();
    });  

    nunitProcess.on('error', function(e) { 
      grunt.fail.fatal(e.code === 'ENOENT' ? 'Unable to find executable located at ' + command.path : e.message);
    });     
  });
};