[test] Implement basic runner for multiple tests

Features:

  * timeout
  * running tests in separate processes
  * printing basic summary

test/core/run

+#!/usr/bin/env node
+/*
+  run.js: test runner for core tests
+
+  Copyright (c) 2011 Nodejitsu
+
+  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.
+
+*/
+
+var path = require('path'),
+    spawn = require('child_process').spawn,
+    async = require('async'),
+    colors = require('colors');
+
+var testTimeout = 15000;
+var results = {};
+
+function runTest(test, callback) {
+  var child = spawn(path.join(__dirname, 'run-single'), [ test ]);
+
+  var killTimeout = setTimeout(function () {
+    child.kill();
+    console.log(test.yellow + ' timed out'.red);
+  }, testTimeout);
+
+  child.on('exit', function (exitCode) {
+    clearTimeout(killTimeout);
+
+    console.log(test.yellow + ' exited with ' +
+                ((exitCode) ? exitCode.toString().red : exitCode.toString().green));
+    results[test] = { exitCode: exitCode };
+    callback();
+    //
+    // We don't want tests to be stopped after first failure, and that's what
+    // async does when it receives truthy value in callback.
+    //
+  });
+};
+
+var tests = process.argv.slice(2);
+async.forEachSeries(tests, runTest, function () {
+  var failed = [], ok = [];
+  for (var test in results) {
+    (results[test].exitCode != 0 ? failed : ok).push(test);
+  }
+
+  console.log('\nSummary:');
+  console.log(('  ' + failed.length + '\tfailed tests').red);
+  console.log(('  ' + ok.length + '\tpassed tests').green);
+});
+
+// vim:filetype=javascript
+