python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Lib/test/test_thread.py

@@ -0,0 +1,270 @@
+import os
+import unittest
+import random
+from test import support
+thread = support.import_module('_thread')
+import time
+import sys
+import weakref
+
+from test import lock_tests
+
+NUMTASKS = 10
+NUMTRIPS = 3
+POLL_SLEEP = 0.010 # seconds = 10 ms
+
+_print_mutex = thread.allocate_lock()
+
+def verbose_print(arg):
+    """Helper function for printing out debugging output."""
+    if support.verbose:
+        with _print_mutex:
+            print(arg)
+
+
+class BasicThreadTest(unittest.TestCase):
+
+    def setUp(self):
+        self.done_mutex = thread.allocate_lock()
+        self.done_mutex.acquire()
+        self.running_mutex = thread.allocate_lock()
+        self.random_mutex = thread.allocate_lock()
+        self.created = 0
+        self.running = 0
+        self.next_ident = 0
+
+        key = support.threading_setup()
+        self.addCleanup(support.threading_cleanup, *key)
+
+
+class ThreadRunningTests(BasicThreadTest):
+
+    def newtask(self):
+        with self.running_mutex:
+            self.next_ident += 1
+            verbose_print("creating task %s" % self.next_ident)
+            thread.start_new_thread(self.task, (self.next_ident,))
+            self.created += 1
+            self.running += 1
+
+    def task(self, ident):
+        with self.random_mutex:
+            delay = random.random() / 10000.0
+        verbose_print("task %s will run for %sus" % (ident, round(delay*1e6)))
+        time.sleep(delay)
+        verbose_print("task %s done" % ident)
+        with self.running_mutex:
+            self.running -= 1
+            if self.created == NUMTASKS and self.running == 0:
+                self.done_mutex.release()
+
+    def test_starting_threads(self):
+        with support.wait_threads_exit():
+            # Basic test for thread creation.
+            for i in range(NUMTASKS):
+                self.newtask()
+            verbose_print("waiting for tasks to complete...")
+            self.done_mutex.acquire()
+            verbose_print("all tasks done")
+
+    def test_stack_size(self):
+        # Various stack size tests.
+        self.assertEqual(thread.stack_size(), 0, "initial stack size is not 0")
+
+        thread.stack_size(0)
+        self.assertEqual(thread.stack_size(), 0, "stack_size not reset to default")
+
+    @unittest.skipIf(os.name not in ("nt", "posix"), 'test meant for nt and posix')
+    def test_nt_and_posix_stack_size(self):
+        try:
+            thread.stack_size(4096)
+        except ValueError:
+            verbose_print("caught expected ValueError setting "
+                            "stack_size(4096)")
+        except thread.error:
+            self.skipTest("platform does not support changing thread stack "
+                          "size")
+
+        fail_msg = "stack_size(%d) failed - should succeed"
+        for tss in (262144, 0x100000, 0):
+            thread.stack_size(tss)
+            self.assertEqual(thread.stack_size(), tss, fail_msg % tss)
+            verbose_print("successfully set stack_size(%d)" % tss)
+
+        for tss in (262144, 0x100000):
+            verbose_print("trying stack_size = (%d)" % tss)
+            self.next_ident = 0
+            self.created = 0
+            with support.wait_threads_exit():
+                for i in range(NUMTASKS):
+                    self.newtask()
+
+                verbose_print("waiting for all tasks to complete")
+                self.done_mutex.acquire()
+                verbose_print("all tasks done")
+
+        thread.stack_size(0)
+
+    def test__count(self):
+        # Test the _count() function.
+        orig = thread._count()
+        mut = thread.allocate_lock()
+        mut.acquire()
+        started = []
+
+        def task():
+            started.append(None)
+            mut.acquire()
+            mut.release()
+
+        with support.wait_threads_exit():
+            thread.start_new_thread(task, ())
+            while not started:
+                time.sleep(POLL_SLEEP)
+            self.assertEqual(thread._count(), orig + 1)
+            # Allow the task to finish.
+            mut.release()
+            # The only reliable way to be sure that the thread ended from the
+            # interpreter's point of view is to wait for the function object to be
+            # destroyed.
+            done = []
+            wr = weakref.ref(task, lambda _: done.append(None))
+            del task
+            while not done:
+                time.sleep(POLL_SLEEP)
+            self.assertEqual(thread._count(), orig)
+
+    def test_save_exception_state_on_error(self):
+        # See issue #14474
+        def task():
+            started.release()
+            raise SyntaxError
+        def mywrite(self, *args):
+            try:
+                raise ValueError
+            except ValueError:
+                pass
+            real_write(self, *args)
+        started = thread.allocate_lock()
+        with support.captured_output("stderr") as stderr:
+            real_write = stderr.write
+            stderr.write = mywrite
+            started.acquire()
+            with support.wait_threads_exit():
+                thread.start_new_thread(task, ())
+                started.acquire()
+        self.assertIn("Traceback", stderr.getvalue())
+
+
+class Barrier:
+    def __init__(self, num_threads):
+        self.num_threads = num_threads
+        self.waiting = 0
+        self.checkin_mutex  = thread.allocate_lock()
+        self.checkout_mutex = thread.allocate_lock()
+        self.checkout_mutex.acquire()
+
+    def enter(self):
+        self.checkin_mutex.acquire()
+        self.waiting = self.waiting + 1
+        if self.waiting == self.num_threads:
+            self.waiting = self.num_threads - 1
+            self.checkout_mutex.release()
+            return
+        self.checkin_mutex.release()
+
+        self.checkout_mutex.acquire()
+        self.waiting = self.waiting - 1
+        if self.waiting == 0:
+            self.checkin_mutex.release()
+            return
+        self.checkout_mutex.release()
+
+
+class BarrierTest(BasicThreadTest):
+
+    def test_barrier(self):
+        with support.wait_threads_exit():
+            self.bar = Barrier(NUMTASKS)
+            self.running = NUMTASKS
+            for i in range(NUMTASKS):
+                thread.start_new_thread(self.task2, (i,))
+            verbose_print("waiting for tasks to end")
+            self.done_mutex.acquire()
+            verbose_print("tasks done")
+
+    def task2(self, ident):
+        for i in range(NUMTRIPS):
+            if ident == 0:
+                # give it a good chance to enter the next
+                # barrier before the others are all out
+                # of the current one
+                delay = 0
+            else:
+                with self.random_mutex:
+                    delay = random.random() / 10000.0
+            verbose_print("task %s will run for %sus" %
+                          (ident, round(delay * 1e6)))
+            time.sleep(delay)
+            verbose_print("task %s entering %s" % (ident, i))
+            self.bar.enter()
+            verbose_print("task %s leaving barrier" % ident)
+        with self.running_mutex:
+            self.running -= 1
+            # Must release mutex before releasing done, else the main thread can
+            # exit and set mutex to None as part of global teardown; then
+            # mutex.release() raises AttributeError.
+            finished = self.running == 0
+        if finished:
+            self.done_mutex.release()
+
+class LockTests(lock_tests.LockTests):
+    locktype = thread.allocate_lock
+
+
+class TestForkInThread(unittest.TestCase):
+    def setUp(self):
+        self.read_fd, self.write_fd = os.pipe()
+
+    @unittest.skipUnless(hasattr(os, 'fork'), 'need os.fork')
+    @support.reap_threads
+    def test_forkinthread(self):
+        status = "not set"
+
+        def thread1():
+            nonlocal status
+
+            # fork in a thread
+            pid = os.fork()
+            if pid == 0:
+                # child
+                try:
+                    os.close(self.read_fd)
+                    os.write(self.write_fd, b"OK")
+                finally:
+                    os._exit(0)
+            else:
+                # parent
+                os.close(self.write_fd)
+                pid, status = os.waitpid(pid, 0)
+
+        with support.wait_threads_exit():
+            thread.start_new_thread(thread1, ())
+            self.assertEqual(os.read(self.read_fd, 2), b"OK",
+                             "Unable to fork() in thread")
+        self.assertEqual(status, 0)
+
+    def tearDown(self):
+        try:
+            os.close(self.read_fd)
+        except OSError:
+            pass
+
+        try:
+            os.close(self.write_fd)
+        except OSError:
+            pass
+
+
+if __name__ == "__main__":
+    unittest.main()