node/test/simple/test-debugger-client.js

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// 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,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// 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,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// libuv-broken


var common = require('../common');
var assert = require('assert');
var debug = require('_debugger');

var spawn = require('child_process').spawn;


var resCount = 0;
var p = new debug.Protocol();
p.onResponse = function(res) {
  resCount++;
};

p.execute('Type: connect\r\n' +
          'V8-Version: 3.0.4.1\r\n' +
          'Protocol-Version: 1\r\n' +
          'Embedding-Host: node v0.3.3-pre\r\n' +
          'Content-Length: 0\r\n\r\n');
assert.equal(1, resCount);

// Make sure split messages go in.

var parts = [];
parts.push('Content-Length: 336\r\n');
assert.equal(21, parts[0].length);
parts.push('\r\n');
assert.equal(2, parts[1].length);
var bodyLength = 0;

parts.push('{"seq":12,"type":"event","event":"break","body":' +
           '{"invocationText":"#<a Server>');
assert.equal(78, parts[2].length);
bodyLength += parts[2].length;

parts.push('.[anonymous](req=#<an IncomingMessage>, res=#<a ServerResponse>)",' +
           '"sourceLine"');
assert.equal(78, parts[3].length);
bodyLength += parts[3].length;

parts.push(':45,"sourceColumn":4,"sourceLineText":"    debugger;","script":' +
           '{"id":24,"name":"/home/ryan/projects/node/benchmark/http_simple.js",' +
           '"lineOffset":0,"columnOffset":0,"lineCount":98}}}');
assert.equal(180, parts[4].length);
bodyLength += parts[4].length;

assert.equal(336, bodyLength);

for (var i = 0; i < parts.length; i++) {
  p.execute(parts[i]);
}
assert.equal(2, resCount);


// Make sure that if we get backed up, we still manage to get all the
// messages
var d = 'Content-Length: 466\r\n\r\n' +
        '{"seq":10,"type":"event","event":"afterCompile","success":true,' +
        '"body":{"script":{"handle":1,"type":"script","name":"dns.js",' +
        '"id":34,"lineOffset":0,"columnOffset":0,"lineCount":241,"sourceStart":' +
        '"(function (module, exports, require) {var dns = process.binding(\'cares\')' +
        ';\\nvar ne","sourceLength":6137,"scriptType":2,"compilationType":0,' +
        '"context":{"ref":0},"text":"dns.js (lines: 241)"}},"refs":[{"handle":0' +
        ',"type":"context","text":"#<a ContextMirror>"}],"running":true}' +
        'Content-Length: 119\r\n\r\n' +
        '{"seq":11,"type":"event","event":"scriptCollected","success":true,' +
        '"body":{"script":{"id":26}},"refs":[],"running":true}';
p.execute(d);
assert.equal(4, resCount);

var expectedConnections = 0;
var tests = [];
function addTest(cb) {
  expectedConnections++;
  tests.push(cb);
}

addTest(function(client, done) {
  console.error('requesting version');
  client.reqVersion(function(err, v) {
    assert.ok(!err);
    console.log('version: %s', v);
    assert.equal(process.versions.v8, v);
    done();
  });
});

addTest(function(client, done) {
  console.error('requesting scripts');
  client.reqScripts(function(err) {
    assert.ok(!err);
    console.error('got %d scripts', Object.keys(client.scripts).length);

    var foundMainScript = false;
    for (var k in client.scripts) {
      var script = client.scripts[k];
      if (script && script.name === 'node.js') {
        foundMainScript = true;
        break;
      }
    }
    assert.ok(foundMainScript);
    done();
  });
});

addTest(function(client, done) {
  console.error('eval 2+2');
  client.reqEval('2+2', function(err, res) {
    console.error(res);
    assert.ok(!err);
    assert.equal('4', res.text);
    assert.equal(4, res.value);
    done();
  });
});


var connectCount = 0;

function doTest(cb, done) {
  var nodeProcess = spawn(process.execPath,
      ['-e', 'setInterval(function () { console.log("blah"); }, 100);']);

  nodeProcess.stdout.once('data', function() {
    console.log('>>> new node process: %d', nodeProcess.pid);
    process.kill(nodeProcess.pid, 'SIGUSR1');
    console.log('>>> signaling it with SIGUSR1');
  });

  var didTryConnect = false;
  nodeProcess.stderr.setEncoding('utf8');
  var b = '';
  nodeProcess.stderr.on('data', function(data) {
    b += data;
    if (didTryConnect == false && /debugger listening on port/.test(b)) {
      didTryConnect = true;

      setTimeout(function() {
        // Wait for some data before trying to connect
        var c = new debug.Client();
        process.stdout.write('>>> connecting...');
        c.connect(debug.port);
        c.on('ready', function() {
          connectCount++;
          console.log('ready!');
          cb(c, function() {
            console.error('>>> killing node process %d\n\n', nodeProcess.pid);
            nodeProcess.kill();
            done();
          });
        });
      }, 100);
    }
  });
}


function run() {
  var t = tests[0];
  if (!t) return;

  doTest(t, function() {
    tests.shift();
    run();
  });
}

run();

process.on('exit', function() {
  assert.equal(expectedConnections, connectCount);
});