node/test/parallel/test-http-response-status-message.js

// Copyright Joyent, Inc. and other Node contributors.
//
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// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
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// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';
require('../common');
const assert = require('assert');
const http = require('http');
const net = require('net');

let testsComplete = 0;

const testCases = [
  { path: '/200', statusMessage: 'OK',
    response: 'HTTP/1.1 200 OK\r\n\r\n' },
  { path: '/500', statusMessage: 'Internal Server Error',
    response: 'HTTP/1.1 500 Internal Server Error\r\n\r\n' },
  { path: '/302', statusMessage: 'Moved Temporarily',
    response: 'HTTP/1.1 302 Moved Temporarily\r\n\r\n' },
  { path: '/missing', statusMessage: '',
    response: 'HTTP/1.1 200 \r\n\r\n' },
  { path: '/missing-no-space', statusMessage: '',
    response: 'HTTP/1.1 200\r\n\r\n' }
];
testCases.findByPath = function(path) {
  const matching = this.filter(function(testCase) {
    return testCase.path === path;
  });
  if (matching.length === 0) {
    assert.fail(`failed to find test case with path ${path}`);
  }
  return matching[0];
};

const server = net.createServer(function(connection) {
  connection.on('data', function(data) {
    const path = data.toString().match(/GET (.*) HTTP\/1\.1/)[1];
    const testCase = testCases.findByPath(path);

    connection.write(testCase.response);
    connection.end();
  });
});

function runTest(testCaseIndex) {
  const testCase = testCases[testCaseIndex];

  http.get({
    port: server.address().port,
    path: testCase.path
  }, function(response) {
    console.log(`client: expected status message: ${testCase.statusMessage}`);
    console.log(`client: actual status message: ${response.statusMessage}`);
    assert.strictEqual(testCase.statusMessage, response.statusMessage);

    response.on('end', function() {
      testsComplete++;

      if (testCaseIndex + 1 < testCases.length) {
        runTest(testCaseIndex + 1);
      } else {
        server.close();
      }
    });

    response.resume();
  });
}

server.listen(0, function() { runTest(0); });

process.on('exit', function() {
  assert.strictEqual(testCases.length, testsComplete);
});