Add basic help tests as examples

package.json

@@ -4,9 +4,10 @@
   "description": "Develop Apps Script Projects locally",
   "main": "index.js",
   "scripts": {
-    "build": "rm index.js; tsc --project tsconfig.json; sudo npm i -g;",
+    "build": "tsc --project tsconfig.json; npm i -g;",
     "lint": "tslint -c tslint.json index.ts",
-    "test": "sh test.sh"
+    "test": "nyc --cache false mocha --timeout 100000",
+    "coverage": "nyc --cache false report --reporter=text-lcov | coveralls"
   },
   "bin": {
     "clasp": "./index.js"
@@ -66,6 +67,10 @@
     "@types/open": "^0.0.29",
     "@types/pluralize": "^0.0.28",
     "@types/recursive-readdir": "^2.2.0",
+    "chai": "^4.1.2",
+    "coveralls": "^3.0.0",
+    "mocha": "^5.1.0",
+    "nyc": "^11.6.0",
     "tslint": "^5.9.1",
     "typescript": "^2.8.1"
   }

test/test.js

@@ -0,0 +1,27 @@
+const expect = require('chai').expect;
+const spawnSync = require('child_process').spawnSync;
+
+describe('Test help for each function', () => {
+
+    it('should output help for run command', () => {
+        const result = spawnSync(
+            'clasp', ['run', '--help'], { encoding : 'utf8' }
+        );
+
+        expect(result.status).to.equal(0);
+        expect(result.stdout).to.include('Run a function in your Apps Scripts project');
+    });
+
+    it('should output help for logs command', () => {
+        const result = spawnSync(
+            'clasp', ['logs', '--help'], { encoding : 'utf8', detached: true }
+        );
+
+        expect(result.status).to.equal(0);
+        expect(result.stdout).to.include('Shows the StackDriver Logs');
+    });
+
+});
+
+
+