android - gradle commandLine statement blocked by while loop after it -


i have gradle task meant start app installed on connected android device. app designed perform actions , shut down, , task supposed detect this. app unity-built app, it's worth - though i'm not sure should matter.

granted, i'm new gradle, please forgive stupid errors made here.

the task follows:

task androidtests(type: exec) {     def output = new bytearrayoutputstream()     println "starting unity sample app"     commandline 'adb', 'shell', 'am', 'start', '-n', "com.foo.bar/com.unity3d.unityplayeractivity"     while(!output.tostring().contains('com.foo.bar')) {         // wait app launch         println "sample app not running yet."         commandline "adb", "shell", "ps", "yplayeractivity"     }     // wait app close     while(output.tostring().contains(packagename)) {         println "sample app has not closed yet."         commandline "adb", "shell", "ps", "yplayeractivity"     } }

currently, task nothing spam console "sample app not running yet.", , app not launch on device. strange is, if remove first while loop, task complete, , app launch on device.

does know might wrong here? seems if first while loop blocking commandline statement before it, somehow. figure out appreciated. thank you!


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