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bytedance / Fastbot_Android

Fastbot(2.0) is a model-based testing tool for modeling GUI transitions to discover app stability problems
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Fastbot on a real device #233

Closed dah-fari7009 closed 11 months ago

dah-fari7009 commented 11 months ago

Hello,

I'm trying to run FastBot on a real device (Pixel XL Android 10 and Pixel 6 Android 13) instead of an emulator, but it seems to require root access to push the libs folder under /data/tmp/ I was wondering if there is any way around this or can the tool only run on emulators and rooted devices?

Thanks

EasyVector commented 11 months ago

Hi, maybe should try to push the file to path /data/local/tmp which you could write through adb.

dah-fari7009 commented 11 months ago

Thanks for the reply! I meant /data/local/tmp, sorry about the confusion; on a real device it seems this folder can not be accessed without running adb as root.

EasyVector commented 11 months ago

What was the command you used for pushing those artifacts, and what was the result from adb? I probably need more details. As far as I know, you do not need root access to push file to /data/local/tmp. I am using a device of Android 10 now.

dah-fari7009 commented 11 months ago

I followed the instructions in the README:

adb push *.jar /sdcard
adb push libs/* /data/local/tmp/

The push to sdcard was successful, but the second one took a very long time and then failed with "remote fchown failed: Operation not permitted". I tried pushing the files inside libs individually as well and observed the same behavior.

I also used adb shell to check the permissions of the data folder on the device (Android 10), and could list the content of sdcard but not data: image

EasyVector commented 11 months ago

Well, the "/data" belongs to root privilege and that is why ls data/ is not allowed when shell is the current user. You could verify with using this command: adb shell ls -ld /data and you could possibly see output like drwxrwx--x 70 system system 4096 2023-07-22 02:35 /data. So I recommand you use adb shell ls -ld /data/local/tmp to check if this directory exists and belongs to shell. You might see output like:

(base) ➜  adb shell ls -ld /data/local/tmp
drwxrwx--x 14 shell shell 3488 2023-07-30 23:42 /data/local/tmp
dah-fari7009 commented 11 months ago

Thank you for your help and the pointers you provided. /data/local/tmp does indeed have shell permission, so the problem might be somewhere else. I will post an update if I figure it out!