Adding new tests related to threads/GIL locking

- Event loop - calling virtual methods from C++
- Event loop with thread - calling virtuals from C++ along with
                           accessing the binding from another python
                           thread
- Thread locking - blocker C++ method that is unlocked from another
                   python thread

For these tests, a new ObjectType subclass was added, Bucket, which
is just a container for the producer/consumer tests and has the
lock/unlock method.

Reviewed by Marcelo Lira <marcelo.lira@openbossa.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/tests/samplebinding/event_loop_thread_test.py b/tests/samplebinding/event_loop_thread_test.py
new file mode 100755
index 000000000..205c87930
--- /dev/null
+++ b/tests/samplebinding/event_loop_thread_test.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python
+
+import time
+import threading
+import unittest
+from random import random
+
+from sample import ObjectType, Event
+
+
+class Producer(ObjectType):
+
+    def __init__(self):
+        ObjectType.__init__(self)
+        self.data = None
+        self.read = False
+
+    def event(self, event):
+        self.data = random()
+
+        while not self.read:
+            time.sleep(0.01)
+
+        return True
+
+
+class Collector(threading.Thread):
+
+    def __init__(self, objects):
+        threading.Thread.__init__(self)
+        self.max_runs = len(objects)
+        self.objects = objects
+        self.data = []
+
+    def run(self):
+        i = 0
+        while i < self.max_runs:
+            if self.objects[i].data is not None:
+                self.data.append(self.objects[i].data)
+                self.objects[i].read = True
+                i += 1
+            time.sleep(0.01)
+
+
+class TestEventLoopWithThread(unittest.TestCase):
+    '''Communication between a python thread and an simple
+    event loop in C++'''
+
+    def testBasic(self):
+        '''Allowing threads and calling virtuals from C++'''
+        number = 10
+        objs = [Producer() for x in range(number)]
+        thread = Collector(objs)
+
+        thread.start()
+
+        evaluated = ObjectType.processEvent(objs,
+                                        Event(Event.BASIC_EVENT))
+
+        thread.join()
+
+        producer_data = [x.data for x in objs]
+        self.assertEqual(evaluated, number)
+        self.assertEqual(producer_data, thread.data)
+
+
+if __name__ == '__main__':
+    unittest.main()