Fix appium-helper's client code to run with Appium v2.0+ properly (#317)

* fix(appium-helper): update server base path

* fix(appium-helper): update capabilities to use required vendor prefix

* fix(appium-helper): update readme to mention appium driver installation

Author: rafael-rollo

packages/plugins/appium-helper/AppiumDriver.ts

@@ -69,17 +69,17 @@ export class AppiumDriver {
     const capabilities = {
       platformName: "Android",
       "appium:automationName": "UiAutomator2",
-      appPackage,
+      "appium:appPackage": appPackage,
       // See https://github.com/appium/appium/blob/1e30207ec4e413c64396420fbb0388392e88cc54/docs/en/writing-running-appium/other/reset-strategies.md
       "appium:noReset": true,
-      autoLaunch: false,
-      appActivity,
-      newCommandTimeout: TEN_MINUTES,
+      "appium:autoLaunch": false,
+      "appium:appActivity": appActivity,
+      "appium:newCommandTimeout": TEN_MINUTES,
       ...clientCapabilities,
     };
 
     const client = await webdriver.remote({
-      path: "/wd/hub",
+      path: "/",
       port: 4723,
       logLevel: "warn",
       capabilities,

packages/plugins/appium-helper/README.md

@@ -35,16 +35,16 @@ import { AppiumDriver } from "@bam.tech/appium-helper";
 test("e2e", async () => {
   const driver = await AppiumDriver.create({
     // `npx @perf-profiler/profiler getCurrentApp` will display info for the current app
-    appPackage: com.example,
-    appActivity: com.example.MainActivity,
+    appPackage: "com.example",
+    appActivity: "com.example.MainActivity",
   });
 
   driver.startApp();
   await driver.findElementByText("Welcome");
 });
 ```
 
-3. Run the appium server `npx appium` in a terminal
+3. Run the appium server `npx appium` in a terminal. If you just installed Appium, you may need to install a driver, e.g., by running `npx appium driver install uiautomator2`.
 4. Run your test file in a separate terminal `yarn jest appium.test.ts`
 
 ### API