Additional changes.

.eslintrc.js

@@ -11,6 +11,7 @@ module.exports = {
   },
   "rules": {
     "comma-dangle": "off",
-    "no-var": "off"
+    "no-var": "off",
+    "generator-star-spacing": ["error", {"anonymous": "neither"}],
   }
 };

package.json

@@ -20,7 +20,6 @@
     "eslint-config-google": "^0.9.1",
     "gas-local": "^1.3.0",
     "gulp": "^3.9.1",
-    "gulp-bump": "^0.3.1",
     "gulp-clean": "^0.3.2",
     "gulp-concat": "^2.6.1",
     "gulp-eslint": "^4.0.2",

src/Service.gs

@@ -46,7 +46,7 @@ var Service_ = function(serviceName) {
 Service_.EXPIRATION_BUFFER_SECONDS_ = 60;
 
 /**
- * The number of seconds that a token should remain in the cache.
+ * The number of milliseconds that a token should remain in the cache.
  * @type {number}
  * @private
  */
@@ -181,6 +181,7 @@ Service_.prototype.setClientSecret = function(clientSecret) {
  * @param {PropertiesService.Properties} propertyStore The property store to use
  *     when persisting credentials.
  * @return {Service_} This service, for chaining.
+ * @see https://developers.google.com/apps-script/reference/properties/
  */
 Service_.prototype.setPropertyStore = function(propertyStore) {
   this.propertyStore_ = propertyStore;
@@ -195,6 +196,7 @@ Service_.prototype.setPropertyStore = function(propertyStore) {
  * @param {CacheService.Cache} cache The cache to use when persisting
  *     credentials.
  * @return {Service_} This service, for chaining.
+ * @see https://developers.google.com/apps-script/reference/cache/
  */
 Service_.prototype.setCache = function(cache) {
   this.cache_ = cache;
@@ -208,6 +210,7 @@ Service_.prototype.setCache = function(cache) {
  * when two executions attempt to refresh an expired token.
  * @param {LockService.Lock} lock The lock to use when accessing credentials.
  * @return {Service_} This service, for chaining.
+ * @see https://developers.google.com/apps-script/reference/lock/
  */
 Service_.prototype.setLock = function(lock) {
   this.lock_ = lock;
@@ -510,7 +513,7 @@ Service_.prototype.refresh = function() {
       throw new Error('Offline access is required.');
     }
     var headers = {
-      'Accept': this.tokenFormat_
+      Accept: this.tokenFormat_
     };
     if (this.tokenHeaders_) {
       headers = extend_(headers, this.tokenHeaders_);
@@ -661,7 +664,7 @@ Service_.prototype.createJwt_ = function() {
 };
 
 /**
- * Locks access to a block of code, if a lock has been set on this service.
+ * Locks access to a block of code if a lock has been set on this service.
  * @param {function} func The code to execute.
  * @return {*} The result of the code block.
  * @private

test/mocks/cache.js

@@ -1,5 +1,5 @@
-var MockCache = function() {
-  this.store = {};
+var MockCache = function(optCache) {
+  this.store = optCache || {};
   this.counter = 0;
 };
 

test/mocks/lock.js

@@ -1,42 +1,44 @@
+/**
+ * @file Mocks out Apps Script's LockService.Lock, using the fibers library to
+ * emulate concurrent executions. Like Apps Script's locks, only one execution
+ * can hold the lock at a time.
+ */
+
 var Fiber = require('fibers');
 
 var locked = false;
 var waitingFibers = [];
 
 var MockLock = function() {
-  this.gotLock = false;
+  this.hasLock_ = false;
   this.id = Math.random();
 };
 
 MockLock.prototype.waitLock = function(timeoutInMillis) {
   var start = new Date();
   do {
-    if (!locked || this.gotLock) {
+    if (!locked || this.hasLock_) {
       locked = true;
-      this.gotLock = true;
+      this.hasLock_ = true;
       return;
     } else {
       waitingFibers.push(Fiber.current);
       Fiber.yield();
     }
-  } while (timeDiffInMillis(new Date(), start) < timeoutInMillis);
+  } while (new Date().getTime() - start.getTime() < timeoutInMillis);
   throw new Error('Unable to get lock');
 };
 
 MockLock.prototype.releaseLock = function() {
   locked = false;
-  this.gotLock = false;
+  this.hasLock_ = false;
   if (waitingFibers.length) {
     waitingFibers.pop().run();
   }
 };
 
 MockLock.prototype.hasLock = function() {
-  return this.gotLock;
+  return this.hasLock_;
 };
 
-function timeDiffInMillis(a, b) {
-  return a.getTime() - b.getTime();
-}
-
 module.exports = MockLock;

test/mocks/properties.js

@@ -1,5 +1,5 @@
-var MockProperties = function() {
-  this.store = {};
+var MockProperties = function(optStore) {
+  this.store = optStore || {};
   this.counter = 0;
 };
 

test/mocks/urlfetchapp.js

@@ -1,3 +1,8 @@
+/**
+ * @file Mocks out Apps Script's UrlFetchApp, using the fibers library to
+ * emulate concurrent executions.
+ */
+
 var Future = require('fibers/future');
 
 var MockUrlFetchApp = function() {
@@ -18,7 +23,7 @@ MockUrlFetchApp.prototype.fetch = function(url, optOptions) {
 };
 
 function sleep(ms) {
-  var future = new Future;
+  var future = new Future();
   setTimeout(function() {
     future.return();
   }, ms);

test/test.js

@@ -47,44 +47,45 @@ describe('Service', function() {
     });
 
     it('should load from the cache', function() {
-      var cache = new MockCache();
-      var service = OAuth2.createService('test')
-          .setPropertyStore(new MockProperties())
-          .setCache(cache);
       var token = {
         access_token: 'foo'
       };
-      cache.put('oauth2.test', JSON.stringify(token));
+      var cache = new MockCache({
+        'oauth2.test': JSON.stringify(token)
+      });
+      var service = OAuth2.createService('test')
+          .setPropertyStore(new MockProperties())
+          .setCache(cache);
       assert.deepEqual(service.getToken(), token);
     });
 
     it('should load from the properties and set the cache', function() {
+      var token = {
+        access_token: 'foo'
+      };
       var cache = new MockCache();
-      var properties = new MockProperties();
+      var properties = new MockProperties({
+        'oauth2.test': JSON.stringify(token)
+      });
       var service = OAuth2.createService('test')
           .setPropertyStore(properties)
           .setCache(cache);
-      var key = 'oauth2.test';
-      var token = {
-        access_token: 'foo'
-      };
-      properties.setProperty(key, JSON.stringify(token));
+
       assert.deepEqual(service.getToken(), token);
-      assert.deepEqual(JSON.parse(cache.get(key)), token);
+      assert.deepEqual(JSON.parse(cache.get('oauth2.test')), token);
     });
 
     it('should not hit the cache or properties on subsequent calls',
         function() {
       var cache = new MockCache();
-      var properties = new MockProperties();
+      var properties = new MockProperties({
+        'oauth2.test': JSON.stringify({
+          access_token: 'foo'
+        })
+      });
       var service = OAuth2.createService('test')
           .setPropertyStore(properties)
           .setCache(cache);
-      var key = 'oauth2.test';
-      var token = {
-        access_token: 'foo'
-      };
-      properties.setProperty(key, JSON.stringify(token));
 
       service.getToken();
       var cacheStart = cache.counter;
@@ -144,14 +145,14 @@ describe('Service', function() {
         expires_in: 100,
         refresh_token: 'bar'
       };
-      var properties = new MockProperties();
-      properties.setProperty('oauth2.test', JSON.stringify(token));
+      var properties = new MockProperties({
+        'oauth2.test': JSON.stringify(token)
+      });
 
       mocks.UrlFetchApp.delayFunction = () => 100;
-      mocks.UrlFetchApp.resultFunction = () =>
-        JSON.stringify({
-          access_token: Math.random().toString(36)
-        });
+      mocks.UrlFetchApp.resultFunction = () => JSON.stringify({
+        access_token: Math.random().toString(36)
+      });
 
       var getAccessToken = function() {
         var service = OAuth2.createService('test')
@@ -197,8 +198,9 @@ describe('Service', function() {
         expires_in: 100,
         refresh_token: 'bar'
       };
-      var properties = new MockProperties();
-      properties.setProperty('oauth2.test', JSON.stringify(token));
+      var properties = new MockProperties({
+        'oauth2.test': JSON.stringify(token)
+      });
 
       var count = 0;
       mocks.UrlFetchApp.resultFunction = function() {
@@ -215,13 +217,13 @@ describe('Service', function() {
       };
 
       var refreshToken = function() {
-        var service = OAuth2.createService('test')
+        OAuth2.createService('test')
             .setClientId('abc')
             .setClientSecret('def')
             .setTokenUrl('http://www.example.com')
             .setPropertyStore(properties)
-            .setLock(new MockLock());
-        service.refresh();
+            .setLock(new MockLock())
+            .refresh();
       }.future();
 
       Future.task(function() {
@@ -239,11 +241,8 @@ describe('Service', function() {
       });
     });
   });
-
 });
 
-
-
 describe('Utilities', function() {
   describe('#extend_()', function() {
     var extend_ = OAuth2.extend_;