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[tor-commits] [stem/master] Parallelize longest process test



commit de97e243e241ee34df6333e5557f4a3fcea9900d
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Sun Jun 4 16:52:41 2017 -0700

    Parallelize longest process test
    
    I plan to do 'em all but starting with one as a proof of concept. This drops
    the test runtime from 48s to 36s on my system (25% faster).
---
 run_tests.py               |  9 ++++-
 test/integ/installation.py |  1 +
 test/integ/process.py      | 99 ++++++++++++++++++++++++++++------------------
 3 files changed, 69 insertions(+), 40 deletions(-)

diff --git a/run_tests.py b/run_tests.py
index a174f65..2798fd4 100755
--- a/run_tests.py
+++ b/run_tests.py
@@ -29,6 +29,7 @@ import stem.version
 import test
 import test.arguments
 import test.integ.installation
+import test.integ.process
 import test.output
 import test.runner
 import test.task
@@ -232,8 +233,12 @@ def main():
 
   skipped_tests = 0
 
-  if args.run_integ and (not args.specific_test or 'test.integ.installation'.startswith(args.specific_test)):
-    test.integ.installation.setup()
+  if args.run_integ:
+    if not args.specific_test or 'test.integ.installation'.startswith(args.specific_test):
+      test.integ.installation.setup()
+
+    if not args.specific_test or 'test.integ.process'.startswith(args.specific_test):
+      test.integ.process.setup(args.tor_path)
 
   if args.run_unit:
     test.output.print_divider('UNIT TESTS', True)
diff --git a/test/integ/installation.py b/test/integ/installation.py
index 8b39e9d..2b58e1d 100644
--- a/test/integ/installation.py
+++ b/test/integ/installation.py
@@ -12,6 +12,7 @@ import unittest
 
 import stem
 import stem.util.system
+import stem.util.test_tools
 import test
 
 INSTALL_MISMATCH_MSG = "Running 'python setup.py sdist' doesn't match our git contents in the following way. The manifest in our setup.py may need to be updated...\n\n"
diff --git a/test/integ/process.py b/test/integ/process.py
index 207d4b4..5677be1 100644
--- a/test/integ/process.py
+++ b/test/integ/process.py
@@ -18,6 +18,7 @@ import stem.process
 import stem.socket
 import stem.util.str_tools
 import stem.util.system
+import stem.util.test_tools
 import stem.util.tor_tools
 import stem.version
 import test.require
@@ -38,6 +39,64 @@ PublishServerDescriptor 0
 DataDirectory %s
 """
 
+TEST_TAKE_OWNERSHIP_BY_PID = None
+
+
+def setup(tor_cmd):
+  global TEST_TAKE_OWNERSHIP_BY_PID
+
+  TEST_TAKE_OWNERSHIP_BY_PID = stem.util.test_tools.AsyncTestResult(_test_take_ownership_via_pid, tor_cmd)
+
+
+def _test_take_ownership_via_pid(tor_cmd):
+  """
+  Checks that the tor process quits after we do if we set take_ownership. To
+  test this we spawn a process and trick tor into thinking that it is us.
+  """
+
+  if not stem.util.system.is_available('sleep'):
+    raise stem.util.test_tools.SkipTest('(sleep unavailable)')
+  elif test.tor_version() < stem.version.Requirement.TAKEOWNERSHIP:
+    raise stem.util.test_tools.SkipTest('(requires )' % stem.version.Requirement.TAKEOWNERSHIP)
+
+  data_directory = tempfile.mkdtemp()
+
+  try:
+    sleep_process = subprocess.Popen(['sleep', '60'])
+
+    tor_process = stem.process.launch_tor_with_config(
+      tor_cmd = tor_cmd,
+      config = {
+        'SocksPort': '2779',
+        'ControlPort': '2780',
+        'DataDirectory': data_directory,
+        '__OwningControllerProcess': str(sleep_process.pid),
+      },
+      completion_percent = 5,
+    )
+
+    # Kill the sleep command. Tor should quit shortly after.
+
+    sleep_process.kill()
+    sleep_process.communicate()
+
+    # tor polls for the process every fifteen seconds so this may take a
+    # while...
+    #
+    #   https://trac.torproject.org/projects/tor/ticket/21281
+
+    start_time = time.time()
+
+    while time.time() - start_time < 30:
+      if tor_process.poll() == 0:
+        return  # tor exited
+
+      time.sleep(0.01)
+
+    raise AssertionError("tor didn't quit after the process that owned it terminated")
+  finally:
+    shutil.rmtree(data_directory)
+
 
 class TestProcess(unittest.TestCase):
   def setUp(self):
@@ -425,49 +484,13 @@ class TestProcess(unittest.TestCase):
     if not (runtime > 0.05 and runtime < 1):
       self.fail('Test should have taken 0.05-1 seconds, took %0.1f instead' % runtime)
 
-  @test.require.only_run_once
-  @test.require.command('sleep')
-  @test.require.version(stem.version.Requirement.TAKEOWNERSHIP)
-  @patch('os.getpid')
-  def test_take_ownership_via_pid(self, getpid_mock):
+  def test_take_ownership_via_pid(self):
     """
     Checks that the tor process quits after we do if we set take_ownership. To
     test this we spawn a process and trick tor into thinking that it is us.
     """
 
-    sleep_process = subprocess.Popen(['sleep', '60'])
-    getpid_mock.return_value = str(sleep_process.pid)
-
-    tor_process = stem.process.launch_tor_with_config(
-      tor_cmd = test.runner.get_runner().get_tor_command(),
-      config = {
-        'SocksPort': '2777',
-        'ControlPort': '2778',
-        'DataDirectory': self.data_directory,
-      },
-      completion_percent = 5,
-      take_ownership = True,
-    )
-
-    # Kill the sleep command. Tor should quit shortly after.
-
-    sleep_process.kill()
-    sleep_process.communicate()
-
-    # tor polls for the process every fifteen seconds so this may take a
-    # while...
-    #
-    #   https://trac.torproject.org/projects/tor/ticket/21281
-
-    start_time = time.time()
-
-    while time.time() - start_time < 30:
-      if tor_process.poll() == 0:
-        return  # tor exited
-
-      time.sleep(0.01)
-
-    self.fail("tor didn't quit after the process that owned it terminated")
+    TEST_TAKE_OWNERSHIP_BY_PID.result(self)
 
   @test.require.only_run_once
   @test.require.version(stem.version.Requirement.TAKEOWNERSHIP)



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