Wait for emulators to exit before deleting thems.

Author: mik9

lib/fastlane/plugin/automated_test_emulator_run/actions/automated_test_emulator_run_action.rb

@@ -93,8 +93,9 @@ def self.run(params)
 
             # Launching AVDs
             UI.message("Launching all AVDs at the same time.".yellow)
+            pids = []
             for i in 0...avd_controllers.length
-              Process.fork do
+              pids << Process.fork do
                 Action.sh(avd_controllers[i].command_start_avd)
               end
             end
@@ -219,6 +220,11 @@ def self.run(params)
 
               # Delete AVDs
               if params[:AVD_clean_after]
+                UI.message(["Waiting for ", avd_schemes[i].avd_name, " to finish..."].join("").yellow)
+                begin_waiting = Time.now
+                Process.wait(pids[i])
+                waited = (Time.now - begin_waiting).to_i
+                UI.message(["Finished in ", waited, " seconds"].join("").yellow)
                 UI.message("AVD_clean_after param set to true. Deleting AVDs.".green)
                 Action.sh(avd_controllers[i].command_delete_avd)
               else