Lib.test.test_trace_threaded.py Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jython-standalone Show documentation

Jython is an implementation of the high-level, dynamic, object-oriented language Python written in 100% Pure Java, and seamlessly integrated with the Java platform. It thus allows you to run Python on any Java platform.

The newest version!

import sys
import threading
import time
import unittest

from test import test_support

class UntracedThread(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)

    def run(self):
        sys.settrace(None)
        for i in range(10):
            self.untracedcall()

    def untracedcall(self):
        pass

class TracedThread(threading.Thread):
    def __init__(self, on_trace):
        threading.Thread.__init__(self)
        self.on_trace = on_trace

    def trace(self, frame, event, arg):
        self.on_trace(frame.f_code.co_name)

    def tracedcall(self):
        pass

    def run(self):
        sys.settrace(self.trace)
        for i in range(10):
            self.tracedcall()

class TracePerThreadTest(unittest.TestCase):
    def testTracePerThread(self):
        called = []
        def ontrace(co_name):
            called.append(str(co_name))

        untraced = UntracedThread()
        traced = TracedThread(ontrace)
        untraced.start()
        traced.start()
        untraced.join()
        traced.join()

        self.assertEquals(10, called.count('tracedcall'),
                "10 tracedcall should be in %s" % called)
        self.assert_('untracedcall' not in called,
                "untracedcall shouldn't be in %s" % called)

def test_main():
    test_support.run_unittest(TracePerThreadTest)

if __name__ == "__main__":
    test_main()