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Commit c970aefa authored by Josh Gao's avatar Josh Gao
Browse files

adb: add `adb shell exit 42` stress test. 

Add a test to hammer on `adb shell exit $n` for flakiness.

Bug: http://b/74616284
Test: python test_device.py
Change-Id: I6a842960f5b55ff739044698f5c9683992fc42f1
parent ecb96ac0

adb/test_device.py

+24 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ import string 
import subprocess

import sys

import tempfile

import threading

import time

import unittest
@@ -493,6 +494,29 @@ class ShellTest(DeviceTest): 
        stdout, _ = self.device.shell(["cat", log_path])

        self.assertEqual(stdout.strip(), "SIGHUP")



    def test_exit_stress(self):

        """Hammer `adb shell exit 42` with multiple threads."""

        thread_count = 48

        result = dict()

        def hammer(thread_idx, thread_count, result):

            success = True

            for i in range(thread_idx, 240, thread_count):

                ret = subprocess.call(['adb', 'shell', 'exit {}'.format(i)])

                if ret != i % 256:

                    success = False

                    break

            result[thread_idx] = success



        threads = []

        for i in range(thread_count):

            thread = threading.Thread(target=hammer, args=(i, thread_count, result))

            thread.start()

            threads.append(thread)

        for thread in threads:

            thread.join()

        for i, success in result.iteritems():

            self.assertTrue(success)





class ArgumentEscapingTest(DeviceTest):

    def test_shell_escaping(self):