fix e2e

.travis.yml

   - source ./scripts/env/installNode.sh
         # android sdk:
   - source ./scripts/env/installAndroidSDK.sh
+        # AppleSimUtils
+  - source ./scripts/env/installAppleSimUtils.sh
 
 script:
   - set -e

scripts/env/installAppleSimUtils.sh

+#!/bin/bash -e
+
+brew tap wix/brew
+brew install --HEAD applesimutils

scripts/test.e2e.android.js

 const _ = require('lodash');
 const exec = require('shell-utils').exec;
 
-// const avdName = 'pixel';
-// const sdk = 'android-24';
-// const apis = 'default';
-// const abi = 'armeabi-v7a';
-// const packageName = `system-images;${sdk};${apis};${abi}`;
-
 const release = _.includes(process.argv, 'release');
 
 // Run just a single test, e.g. npm test-e2e-android -- just com.MyClass#myMethod
   if (process.env.CI) {
     console.log(`android e2e is disabled on CI`);
   } else {
+    assertEnv();
+    if (!isDeviceRunning()) {
+      startEmulator();
+    }
     runTests();
   }
 }
 
+function assertEnv() {
+  if (_.isEmpty(process.env.ANDROID_HOME)) {
+    throw new Error(`$ANDROID_HOME is not defined`);
+  }
+}
+
+function isDeviceRunning() {
+  try {
+    const response = exec.execSyncRead(`adb -e shell getprop init.svc.bootanim 2>&1`);
+    return _.isEqual(response, `stopped`);
+  } catch (err) {
+    return false;
+  }
+}
+
+function startEmulator() {
+  console.log(`Looking for avd...`);
+  const avds = exec.execSyncRead(`avdmanager list avd -c`);
+  const avdName = /^.*package\.xml(\S+)$/.exec(avds)[1];
+  if (_.isEmpty(avdName)) {
+    throw new Error(`Launch an android emulator or connect a device`);
+  }
+  console.log(`found avd name: ${avdName}, Launching...`);
+  exec.execAsyncSilent(`${process.env.ANDROID_HOME}/tools/emulator -gpu host -no-audio @${avdName}`);
+  exec.execSync(`./scripts/waitForAndroidEmulator.sh`);
+}
+
 function runTests() {
   exec.execSync(`npm run uninstall-android`);
   exec.execSync(`npm run install-android ${release ? '-- release' : ''}`);
   exec.execSync(`cd AndroidE2E && ./gradlew ${filterParam} connectedDebugAndroidTest`);
 }
 
+// const avdName = 'pixel';
+// const sdk = 'android-24';
+// const apis = 'default';
+// const abi = 'armeabi-v7a';
+// const packageName = `system-images;${sdk};${apis};${abi}`;
+
 // function installEmulator() {
 //   exec.execSync(`sdkmanager "emulator"`);
 //   exec.execSync(`sdkmanager "${packageName}"`);