Add command line test cases

.travis.yml

@@ -23,5 +23,8 @@ before_install:
   - npm install -g node-gyp
   - git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git && export PATH=$PATH:$(pwd)/depot_tools
   - if [[ $TRAVIS_OS_NAME == "linux" ]]; then export CXX=g++-4.8; fi
+  - cd ..
+  - npm install widl-nan
+  - cd -
 before_script:
    - python ./tools/lint.py

test/Util.js

@@ -0,0 +1,64 @@
+// Copyright (c) 2016 Intel Corporation. All rights reserved.
+// Use of this source code is governed by a MIT-style license that can be
+// found in the LICENSE file.
+
+'use strict';
+
+var Path = require('path');
+var Fs = require('fs');
+var Crypto = require('crypto');
+var Rimraf = require('rimraf');
+
+function Util() {}
+
+Util.prototype.ensureTestRoot =
+function() {
+  var rootPath = Path.join(__dirname, '..', 'test-tmp');
+  rootPath = Path.normalize(rootPath);
+  if (!this.isDir(rootPath)) {
+    Fs.mkdirSync(rootPath);
+  }
+  if (this.isDir(rootPath)) {
+    return rootPath;
+  }
+  return null;
+};
+
+Util.prototype.isFile =
+function(dir) {
+  try {
+    if (Fs.statSync(dir).isFile()) {
+      return true;
+    }
+  } catch (e) {
+    return false;
+  }
+};
+
+Util.prototype.isDir =
+function(dir) {
+  try {
+    if (Fs.statSync(dir).isDirectory()) {
+      return true;
+    }
+  } catch (e) {
+    return false;
+  }
+};
+
+Util.prototype.createTmpDir =
+function() {
+  var tmpDir = null;
+  var rootPath = this.ensureTestRoot();
+  if (rootPath) {
+    var tmpDirName = Crypto.randomBytes(5).toString('hex');
+    tmpDir = rootPath + Path.sep + tmpDirName;
+    if (this.isDir(tmpDir)) {
+      Rimraf.sync(tmpDir);
+    }
+    Fs.mkdirSync(tmpDir);
+  }
+  return tmpDir;
+};
+
+module.exports = new Util();

test/command-line/sample.widl

@@ -0,0 +1,14 @@
+// Extracted from http://dev.w3.org/2006/webapi/WebIDL/ on 2011-05-06
+exception InvalidName {
+  DOMString reason;
+};
+
+exception NoSuchPet { };
+
+interface Person {
+
+  // A simple attribute that can be set to any value the range an unsigned
+  // short can take.
+  attribute unsigned short age;
+
+};