linux fix

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

spec/integration/specs/app_spec.ts

@@ -3,14 +3,15 @@ import * as util from "../helpers/utils"
 
 describe("app start", () => {
   let app: Application
-  beforeEach(() => {
+  beforeEach(async () => {
     app = util.setup()
-    return app.start()
+    await app.start()
+    const windowCount = await app.client.getWindowCount()
+    await app.client.windowByIndex(windowCount - 1)
+    await app.client.waitUntilWindowLoaded()
   }, 20000)
 
   it('starts with whats new flow', async () => {
-    await app.client.windowByIndex(1)
-    await app.client.waitUntilWindowLoaded()
     await app.client.waitUntilTextExists("h1", "What's new")
     await app.client.click("button.btn-primary")
     await app.client.waitUntilTextExists("h1", "Welcome")