Switch from travis to appveyor

Author: zhengbli

.travis.yml

@@ -1,11 +1,11 @@
 language: node_js
 node_js:
-    - 'stable'
+    - '4'
 
 before_install: cd tests
 install:
-    -sudo add-apt-repository ppa:ubuntu-toolchain-r/test
-    -sudo apt-get update
-    -sudo apt-get install build-essential gcc-4.9 python2.7
-    -npm install
+    - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+    - sudo apt-get update
+    - sudo apt-get install build-essential gcc-4.9 python2.7
+    - npm install
 script: npm test

tests/build.ts

@@ -51,5 +51,8 @@ for (var file of fs.readdirSync('cases')) {
     var text = fs.readFileSync('cases/' + file, 'utf8');
     let outputFilename = file.slice(0, file.lastIndexOf('.'));
     let grammer = file.slice(file.indexOf('.tsx')) === '.tsx' ? tsReactGrammar : tsGrammar;
+    if (!fs.existsSync('./generated')){
+        fs.mkdirSync('generated');
+    }
     fs.writeFile('generated/' + outputFilename + '.txt', getScopesAtMarkers(text, grammer), "utf8");
 }