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Coverage for /Users/yunong/workspace/node-restify/test/upgrade.test.js : 88%

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  // Copyright (c) 2013, Joyent, Inc. All rights reserved.
  // vim: set ts=8 sts=8 sw=8 et:
  
  var http = require('http');
  
  var Watershed = require('watershed').Watershed;
  
  var HttpError = require('../lib/errors').HttpError;
  var RestError = require('../lib/errors').RestError;
  var InvalidUpgradeStateError =
      require('../lib/upgrade').InvalidUpgradeStateError;
  var restify = require('../lib');
  
  if (require.cache[__dirname + '/lib/helper.js'])
      delete require.cache[__dirname + '/lib/helper.js'];
  var helper = require('./lib/helper.js');
  
  
  ///--- Globals
  
  var after = helper.after;
  var before = helper.before;
  var test = helper.test;
  
  var PORT = process.env.UNIT_TEST_PORT || 0;
  var CLIENT;
  var SERVER;
  var WATERSHED = new Watershed();
  var SHEDLIST = [];
  
  var TIMEOUT = 15000;
  
  ///--- Test Helper
  
  function
      finish_latch(_test, _names) {
      var complete = false;
      var t = _test;
      var names = _names;
      var iv = setTimeout(function () {
          if (complete)
              return;
  
          complete = true;
          t.ok(false, 'timeout after ' + TIMEOUT + 'ms');
          t.ok(false, 'remaining latches: ' +
              Object.keys(names).join(', '));
          t.done();
      }, TIMEOUT);
      return (function (name, err) {
          if (complete)
              return;
  
          if (names[name] === undefined) {
              complete = true;
              t.ok(false, 'latch name "' + name +
                  '" not expected');
              t.ok(false, 'remaining latches: ' +
                  Object.keys(names).join(', '));
              t.done();
              return;
          }
  
          if (--names[name] === 0)
              delete names[name];
  
          /*
           * Check that all latch names are done, and if so,
           * end the test:
           */
          if (Object.keys(names).length === 0) {
              complete = true;
              clearTimeout(iv);
              iv = null;
              t.done();
          }
      });
  }
  
  
  ///--- Tests
  
  before(function (cb) {
      try {
          SERVER = restify.createServer({
              dtrace: helper.dtrace,
              log: helper.getLog('server'),
              version: ['2.0.0', '0.5.4', '1.4.3'],
              handleUpgrades: true
          });
          SERVER.listen(PORT, '127.0.0.1', function () {
              PORT = SERVER.address().port;
              CLIENT = restify.createHttpClient({
                  url: 'http://127.0.0.1:' + PORT,
                  dtrace: helper.dtrace,
                  retry: false
              });
  
              cb();
          });
      } catch (e) {
          console.error(e.stack);
          process.exit(1);
      }
  });
  
  
  after(function (cb) {
      try {
          CLIENT.close();
          SERVER.close(function () {
              CLIENT = null;
              SERVER = null;
              cb();
          });
          while (SHEDLIST.length > 0) {
              SHEDLIST.pop().destroy();
          }
      } catch (e) {
          console.error(e.stack);
          process.exit(1);
      }
  });
  
  
  test('GET without upgrade headers', function (t) {
      var done = finish_latch(t, {
          'client response': 1,
          'server response': 1
      });
  
      SERVER.get('/attach', function (req, res, next) {
          t.ok(!res.claimUpgrade, 'res.claimUpgrade not present');
          res.send(400);
          next();
          done('server response');
      });
  
      var options = {
          headers: {
              'uprgade': 'ebfrockets'
          },
          path: '/attach'
      };
      CLIENT.get(options, function (err, req) {
          t.ifError(err);
          req.on('error', function (err2) {
              t.ifError(err2);
              done('client error');
          });
          req.on('result', function (err2, res) {
              if (err2 && err2.name !== 'BadRequestError')
                  t.ifError(err2);
              t.equal(res.statusCode, 400);
              res.on('end', function () {
                  done('client response');
              });
              res.resume();
          });
          req.on('upgradeResult', function (err2, res) {
              done('server upgraded unexpectedly');
          });
      });
  });
  
  
  test('Dueling upgrade and response handling 1', function (t) {
      var done = finish_latch(t, {
          'expected requestUpgrade error': 1,
          'client response': 1
      });
  
      SERVER.get('/attach', function (req, res, next) {
          try {
              res.send(400);
          } catch (ex) {
              t.ifError(ex);
              done('unxpected res.send error');
              return;
          }
  
          try {
              var upg = res.claimUpgrade();
              upg.socket.destroy();
          } catch (ex) {
              done('expected requestUpgrade error');
          }
          next(false);
      });
  
      var wskey = WATERSHED.generateKey();
      var options = {
          headers: {
              'connection': 'upgrade',
              'upgrade': 'websocket',
              'sec-websocket-key': wskey
          },
          path: '/attach'
      };
      CLIENT.get(options, function (err, req) {
          t.ifError(err);
          req.on('error', function (err2) {
              t.ifError(err2);
              done('client error');
          });
          req.on('result', function (err2, res) {
              if (err2 && err2.name !== 'BadRequestError')
                  t.ifError(err2);
              t.equal(res.statusCode, 400);
              res.on('end', function () {
                  done('client response');
              });
              res.resume();
          });
          req.on('upgradeResult', function (err2, res) {
              done('server upgraded unexpectedly');
          });
      });
  });
  
  
  test('Dueling upgrade and response handling 2', function (t) {
      var done = finish_latch(t, {
          'expected res.send error': 1,
          'expected server to reset': 1
      });
  
      SERVER.get('/attach', function (req, res, next) {
          try {
              var upg = res.claimUpgrade();
              upg.socket.destroy();
          } catch (ex) {
              t.ifError(ex);
              done('unexpected requestUpgrade error');
          }
  
          try {
              res.send(400);
          } catch (ex) {
              if (ex.name !== 'InvalidUpgradeStateError')
                  t.ifError(ex);
              done('expected res.send error');
              return;
          }
  
          next(false);
      });
  
      var wskey = WATERSHED.generateKey();
      var options = {
          headers: {
              'connection': 'upgrade',
              'upgrade': 'websocket',
              'sec-websocket-key': wskey
          },
          path: '/attach'
      };
      CLIENT.get(options, function (err, req) {
          t.ifError(err);
          done('expected server to reset');
          return;
      });
  });
  
  
  test('GET with upgrade headers', function (t) {
      var done = finish_latch(t, {
          'client shed end': 1,
          'server shed end': 1
      });
  
      SERVER.get('/attach', function (req, res, next) {
          t.ok(res.claimUpgrade, 'res.claimUpgrade present');
          t.doesNotThrow(function () {
              var upgrade = res.claimUpgrade();
              var shed = WATERSHED.accept(req, upgrade.socket,
                  upgrade.head);
              SHEDLIST.push(shed);
              shed.end('ok we\'re done here');
              shed.on('error', function (err) {
                  t.ifError(err);
                  done('server shed error');
              });
              shed.on('end', function () {
                  done('server shed end');
              });
              next(false);
          });
      });
  
      var wskey = WATERSHED.generateKey();
      var options = {
          headers: {
              'connection': 'upgrade',
              'upgrade': 'websocket',
              'sec-websocket-key': wskey
          },
          path: '/attach'
      };
      CLIENT.get(options, function (err, req) {
          t.ifError(err);
          req.on('result', function (err2, res) {
              t.ifError(err2);
              t.ok(false, 'server did not upgrade');
              done(true);
          });
          req.on('upgradeResult', function (err2, res, socket, head) {
              t.ifError(err2);
              t.ok(true, 'server upgraded');
              t.equal(res.statusCode, 101);
              t.equal(typeof (socket), 'object');
              t.ok(Buffer.isBuffer(head), 'head is Buffer');
              t.doesNotThrow(function () {
                  var shed = WATERSHED.connect(res, socket, head,
                      wskey);
                  SHEDLIST.push(shed);
                  shed.end('ok, done');
                  shed.on('error', function (err3) {
                      t.ifError(err3);
                      done('client shed error');
                  });
                  shed.on('end', function () {
                      done('client shed end');
                  });
              });
          });
      });
  });
  
  
  test('GET with some websocket traffic', function (t) {
      var done = finish_latch(t, {
          'client shed end': 1,
          'server shed end': 1,
          'server receive message': 5,
          'client receive message': 3
      });
  
      SERVER.get('/attach', function (req, res, next) {
          t.ok(res.claimUpgrade, 'res.claimUpgrade present');
          t.doesNotThrow(function () {
              var upgrade = res.claimUpgrade();
              var shed = WATERSHED.accept(req, upgrade.socket,
                  upgrade.head);
              SHEDLIST.push(shed);
              shed.on('error', function (err) {
                  t.ifError(err);
                  done('server shed error');
              });
              shed.on('text', function (msg) {
                  if (msg === 'to server')
                      done('server receive message');
              });
              shed.on('end', function () {
                  done('server shed end');
              });
              shed.send('to client');
              shed.send('to client');
              shed.send('to client');
              next(false);
          });
      });
  
      var wskey = WATERSHED.generateKey();
      var options = {
          headers: {
              'connection': 'upgrade',
              'upgrade': 'websocket',
              'sec-websocket-key': wskey
          },
          path: '/attach'
      };
      CLIENT.get(options, function (err, req) {
          t.ifError(err);
          req.on('result', function (err2, res) {
              t.ifError(err2);
              t.ok(false, 'server did not upgrade');
              done(true);
          });
          req.on('upgradeResult', function (err2, res, socket, head) {
              t.ifError(err2);
              t.ok(true, 'server upgraded');
              t.equal(res.statusCode, 101);
              t.equal(typeof (socket), 'object');
              t.ok(Buffer.isBuffer(head), 'head is Buffer');
              t.doesNotThrow(function () {
                  var shed = WATERSHED.connect(res, socket, head,
                      wskey);
                  SHEDLIST.push(shed);
                  shed.on('error', function (err3) {
                      t.ifError(err3);
                      done('client shed error');
                  });
                  shed.on('end', function () {
                      done('client shed end');
                  });
                  shed.on('text', function (msg) {
                      if (msg === 'to client')
                          done('client receive message');
                  });
                  var count = 5;
                  var iv = setInterval(function () {
                      if (--count < 0) {
                          clearInterval(iv);
                          shed.end();
                      } else {
                          shed.send('to server');
                      }
                  }, 100);
              });
          });
      });
  });
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