#Appium app capability code#

Ideally, we'd look for a number on the server itself, and thankfully this is something we can do thanks to Appium's Events API. However, this would also count the time taken by the request to and response from the Appium server, which could add up to a lot depending on the network latency in between the client and server.

#Appium app capability code#

We might also care about not just how long the app takes to launch, but how long until an element is usable, so we can throw in a wait-for-element: wait.until(ExpectedConditions.presenceOfElementLocated(loginScreen)) Д«ut this is just making the app launch how do we actually measure the time it took? One technique would be to simply create timestamps in our client code before and after this logic, and get the difference between them.

Activity act = new Activity(APP_PKG, APP_ACT) Once we have a session started, but no app launched, we can use the startActivity command to direct our app to launch, without any of the extra steps that Appium often takes during launch, so we get a relatively pure measure of app launch. It's also important to remember that because Appium won't be launching the app for us, we're responsible for ensuring all app permissions have been granted, the app is in the correct reset state (based on whether we are timing first launch or subsequent launch), etc. This is because we want to launch the app in a controlled and time-able manner later on. Setting autoLaunch to false tells the Appium server to start an automation session, but not to launch your app. So, how can we check this? The main trick is to use one little-known capability: tCapability( 'autoLaunch', false) I know for myself that if an app takes too long to load, I often switch to something else and don't even bother using it unless I absolutely have to. From a user's perspective, how long does it take from the time they tap the app icon to the time they can interact with it? App launch time can be a big component of user frustration. Performance is a big and important area of focus for testers, and one key performance metric is app launch time. While Appium is most often used for functional testing (does the functionality of my app behave?), it can also be used to drive other kinds of testing.