At this point the server will start up the automation session and respond with a session ID which is used for sending further commands". Clients initiate a session with a server in ways specific to each library, but they all end up sending a POST /session request to the server, with a JSON object called the 'desired capabilities’ object. "Automation is always performed in the context of a session. We can write test code and rely on a cloud service like Sauce Labs to receive and interpret the commands". We can put the server on a different machine than our tests are running on. The fact that we have a client/server architecture opens up a lot of possibilities: we can write our test code in any language that has a http client API, but it is easier to use one of the Appium client libraries. It receives connections from a client, listens for commands, executes those commands on a mobile device, and responds with an HTTP response representing the result of the command execution. "Appium is at its heart a webserver that exposes a REST API. Jason Huggins, who created the first version of Selenium at Thoughtworks ,then teamed up with Simon Stewart at Google to make Selenium WebDriver, founded a company where if you were doing software test automation, you could use their devices-in-a-cloud to test on. "So he thought, what if I could get the UIAutomation framework to run in real time like an interpreter? This worked to some degree, but would never work on real devices, not to mention other drawbacks. The first implementation he tried used AppleScript to send messages to Mac UI elements using the OS X accessibility APIs. He spent 2 weeks poking and prodding around to see if there was a way to use approved Apple technologies to automate an iOS application. "Unsatisfied with the existing options, Dan asked his manager for some additional time to see if he could find a better way. Other 3rd-party tools used private APIs and required SDKs and HTTP Servers to be embedded into the application. It also had to be executed inside the Xcode profiling tool, Instruments. The tool supplied by Apple, UIAutomation, required tests to be written in JavaScript, and did not allow for real time debugging or interpretation. "Dan surveyed the existing landscape of tools, only to find that all of them hand major drawbacks. He thought back to his days working on websites and realized automation was the answer. Less testing was an option, but would come with additional risk, especially with it taking several days to get patches through the iOS App Store Review process. The length of the test passes on the iOS product was getting out of hand. " Dan Cuellar was the Test Manager at Zoosk in 2011, when he encountered a problem. SeConf2017: Microsoft is automating Windows, Intuit automating Mac Apps, all with Appium!.SeConf2017: Security Testing, Dockerizing Tests using Appium, Notes.SeConf2017: Rethinking Appium’s Code Base, Notes.Webinar Notes: An Introduction to Appium Desktop by Johnathan Lipps.Webinar Notes: Appium, Prime Cuts, by Dan Cuellar.If you need more of an introduction to what is Appiun, Appium Docker, and what Appium can do, view: Why? I really like the Mac Terminal as a Command Line Interface. I will be setting everything up on my Macbook.Although Appium allows both OS and Android, I was going to focus just on Android first, configuring both physical and virtual devices.We will be covering basic concepts of Appium, and doing a deep-dive on many of the Android Command Line Tools used. Appium Desktop comes with Appium 1.6.4-beta as the server.Appium Desktop is a web based product used to inspect iOS and Android apps so I can determine a locator strategy for my eventual mobile automation test framework I will be building.
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