Fixing typo in _loadRoles which prevents caching of roles. (#2063)

spec/Auth.spec.js

@@ -0,0 +1,83 @@
+describe('Auth', () => {
+  var Auth = require('../src/Auth.js').Auth;
+
+  describe('getUserRoles', () => {
+    var auth;
+    var config;
+    var cacheController;
+    var currentRoles = null;
+    var currentUserId = 'userId';
+
+    beforeEach(() => {
+      currentRoles = ['role:userId'];
+
+      config = {
+        cacheController: {
+          role: {
+            get: () => Promise.resolve(currentRoles),
+            set: jasmine.createSpy('set')
+          }
+        }
+      }
+      spyOn(config.cacheController.role, 'get').and.callThrough();
+
+      auth = new Auth({
+        config: config,
+        isMaster: false,
+        user: {
+          id: currentUserId
+        },
+        installationId: 'installationId'
+      });
+    });
+
+    it('should get user roles from the cache', (done) => {
+      auth.getUserRoles()
+        .then((roles) => {
+          var firstSet = config.cacheController.role.set.calls.first();
+          expect(firstSet).toEqual(undefined);
+
+          var firstGet = config.cacheController.role.get.calls.first();
+          expect(firstGet.args[0]).toEqual(currentUserId);
+          expect(roles).toEqual(currentRoles);
+          done();
+        });
+    });
+
+    it('should only query the roles once', (done) => {
+      var loadRolesSpy = spyOn(auth, '_loadRoles').and.callThrough();
+      auth.getUserRoles()
+        .then((roles) => {
+          expect(roles).toEqual(currentRoles);
+          return auth.getUserRoles()
+        })
+        .then((roles) => auth.getUserRoles())
+        .then((roles) => auth.getUserRoles())
+        .then((roles) => {
+          // Should only call the cache adapter once.
+          expect(config.cacheController.role.get.calls.count()).toEqual(1);
+          expect(loadRolesSpy.calls.count()).toEqual(1);
+
+          var firstGet = config.cacheController.role.get.calls.first();
+          expect(firstGet.args[0]).toEqual(currentUserId);
+          expect(roles).toEqual(currentRoles);
+          done();
+        });
+    });
+
+    it('should not have any roles with no user', (done) => {
+      auth.user = null
+      auth.getUserRoles()
+        .then((roles) => expect(roles).toEqual([]))
+        .then(() => done());
+    });
+
+    it('should not have any user roles with master', (done) => {
+      auth.isMaster = true
+      auth.getUserRoles()
+        .then((roles) => expect(roles).toEqual([]))
+        .then(() => done());
+    })
+
+  });
+});