diff --git a/app/scripts/controllers/infura.js b/app/scripts/controllers/infura.js
index 98375b446..b34b0bc03 100644
--- a/app/scripts/controllers/infura.js
+++ b/app/scripts/controllers/infura.js
@@ -26,6 +26,7 @@ class InfuraController {
         this.store.updateState({
           infuraNetworkStatus: parsedResponse,
         })
+        return parsedResponse
       })
   }
 
diff --git a/package.json b/package.json
index 1f2d0d591..e0bb303bf 100644
--- a/package.json
+++ b/package.json
@@ -176,7 +176,7 @@
     "react-addons-test-utils": "^15.5.1",
     "react-test-renderer": "^15.5.4",
     "react-testutils-additions": "^15.2.0",
-    "sinon": "^1.17.3",
+    "sinon": "^2.3.8",
     "tape": "^4.5.1",
     "testem": "^1.10.3",
     "uglifyify": "^3.0.1",
diff --git a/test/unit/infura-controller-test.js b/test/unit/infura-controller-test.js
index 912867764..605305efa 100644
--- a/test/unit/infura-controller-test.js
+++ b/test/unit/infura-controller-test.js
@@ -1,34 +1,62 @@
-// polyfill fetch
-// global.fetch = function () {return Promise.resolve({
-//     json: () => { return Promise.resolve({"mainnet": "ok", "ropsten": "degraded", "kovan": "down", "rinkeby": "ok"}) },
-//   })
-// }
-// const assert = require('assert')
-// const InfuraController = require('../../app/scripts/controllers/infura')
-//
-// describe('infura-controller', function () {
-//   var infuraController
-//
-//   beforeEach(function () {
-//     infuraController = new InfuraController()
-//   })
-//
-//   describe('network status queries', function () {
-//     describe('#checkInfuraNetworkStatus', function () {
-//       it('should return an object reflecting the network statuses', function (done) {
-//         this.timeout(15000)
-//         infuraController.checkInfuraNetworkStatus()
-//           .then(() => {
-//             const networkStatus = infuraController.store.getState().infuraNetworkStatus
-//             assert.equal(Object.keys(networkStatus).length, 4)
-//             assert.equal(networkStatus.mainnet, 'ok')
-//             assert.equal(networkStatus.ropsten, 'degraded')
-//             assert.equal(networkStatus.kovan, 'down')
-//           })
-//           .then(() => done())
-//           .catch(done)
-//
-//       })
-//     })
-//   })
-// })
+const assert = require('assert')
+const sinon = require('sinon')
+const InfuraController = require('../../app/scripts/controllers/infura')
+
+describe('infura-controller', function () {
+  let infuraController, sandbox, networkStatus
+  const response = {'mainnet': 'degraded', 'ropsten': 'ok', 'kovan': 'ok', 'rinkeby': 'down'}
+
+  before(async function () {
+    infuraController = new InfuraController()
+    sandbox = sinon.sandbox.create()
+    sinon.stub(infuraController, 'checkInfuraNetworkStatus').resolves(response)
+    networkStatus = await infuraController.checkInfuraNetworkStatus()
+  })
+
+  after(function () {
+    sandbox.restore()
+  })
+
+  describe('Network status queries', function () {
+
+    describe('Mainnet', function () {
+      it('should have Mainnet', function () {
+        assert.equal(Object.keys(networkStatus)[0], 'mainnet')
+      })
+
+      it('should have a value for Mainnet status', function () {
+        assert.equal(networkStatus.mainnet, 'degraded')
+      })
+    })
+
+    describe('Ropsten', function () {
+      it('should have Ropsten', function () {
+        assert.equal(Object.keys(networkStatus)[1], 'ropsten')
+      })
+
+      it('should have a value for Ropsten status', function () {
+        assert.equal(networkStatus.ropsten, 'ok')
+      })
+    })
+
+    describe('Kovan', function () {
+      it('should have Kovan', function () {
+        assert.equal(Object.keys(networkStatus)[2], 'kovan')
+      })
+
+      it('should have a value for Kovan status', function () {
+        assert.equal(networkStatus.kovan, 'ok')
+      })
+    })
+
+    describe('Rinkeby', function () {
+      it('should have Rinkeby', function () {
+        assert.equal(Object.keys(networkStatus)[3], 'rinkeby')
+      })
+
+      it('should have a value for Rinkeby status', function () {
+        assert.equal(networkStatus.rinkeby, 'down')
+      })
+    })
+  })
+})