ADB Error codes

Question

We have an android device and as part of testing I need to excute a console test application on the target device. If the test application detects an error it returns -1.

I can use adb shell to run the test applications remotely on the target but I can't find a way of getting back the return code. I need this so I that I can build this into an automated test suite.

I could try grepping the console output for some failure text but that is a bit grubby. Does anyone know of a more elegant solution?

Answer 1

This is a workaround to get the exit code: adb shell '{your command here} > /dev/null 2>&1; echo $?'

This is a wrapper around adb in Ruby:

def adb(opt)   input = "#{adb_command} #{opt[:command]} #{opt[:params]}"   puts "Executing #{input}...\n"   output = nil   exit_code = 0    def wait_for(secs)     if secs       begin         Timeout::timeout(secs) { yield }       rescue         print 'execution expired'       end     else       yield     end   end    wait_for(opt[:timeout]) do     case opt[:command]     when :install, :push, :uninstall       output, exit_code = `#{input}`, $?.to_i     when :shell       input = "#{adb_command} shell \"#{opt[:params]}; echo \\$?\""       output = `#{input}`.split("\n")       exit_code = output.pop.to_i       output = output.join("\n")     else       raise 'Error: param command to adb not defined!'     end   end    return if opt[:ignore_fail] and output =~ /#{opt[:ignore_fail]}/   raise output unless exit_code == 0 end 

Answer 2

You could use Facebook's fb-adb, a "A better shell for Android devices" which "propagates program exit status instead of always exiting with status 0".