import tpool_test.py from https://bitbucket.org/which_linden/eventlet/

greentest/tpool_test.py

@@ -17,21 +17,23 @@ See the License for the specific language governing permissions and
 limitations under the License.
 """
 
-import time
-from eventlet import coros, api,  tpool
+import os, socket, time, threading
+from eventlet import coros, api, tpool
 from greentest import tests
 
+from eventlet.tpool import erpc
 from sys import stdout
 
 import random
 r = random.WichmannHill()
+import uuid
 
 _g_debug = False
 
 def prnt(msg):
     if _g_debug:
         print msg
-        
+
 class yadda(object):
     def __init__(self):
         pass
@@ -58,9 +60,20 @@ def sender_loop(pfx):
         api.sleep(0)
         n += 1
 
+one = 1
+two = 2
+three = 3
 
-class TestTpool(tests.TestCase):    
-    def test1(self):
+class TestTpool(tests.TestCase):
+    def setUp(self):
+        # turn off exception printing, because we'll be deliberately
+        # triggering exceptions in our tests
+        tpool.QUIET = True
+
+    def tearDown(self):
+        tpool.QUIET = False
+
+    def test_a_buncha_stuff(self):
         pool = coros.CoroutinePool(max_size=10)
         waiters = []
         for i in range(0,9):
@@ -68,6 +81,142 @@ class TestTpool(tests.TestCase):
         for waiter in waiters:
             waiter.wait()
 
+    def test_wrap_tuple(self):
+        my_tuple = (1, 2)
+        prox = tpool.Proxy(my_tuple)
+        self.assertEqual(prox[0], 1)
+        self.assertEqual(prox[1], 2)
+        self.assertEqual(len(my_tuple), 2)
+
+    def test_wrap_string(self):
+        my_object = "whatever"
+        prox = tpool.Proxy(my_object)
+        self.assertEqual(str(my_object), str(prox))
+        self.assertEqual(len(my_object), len(prox))
+        self.assertEqual(my_object.join(['a', 'b']), prox.join(['a', 'b']))
+
+    def test_wrap_uniterable(self):
+        # here we're treating the exception as just a normal class
+        prox = tpool.Proxy(FloatingPointError())
+        def index():
+            prox[0]
+        def key():
+            prox['a']
+
+        self.assertRaises(IndexError, index)
+        self.assertRaises(TypeError, key)
+
+    def test_wrap_dict(self):
+        my_object = {'a':1}
+        prox = tpool.Proxy(my_object)
+        self.assertEqual('a', prox.keys()[0])
+        self.assertEqual(1, prox['a'])
+        self.assertEqual(str(my_object), str(prox))
+        self.assertEqual(repr(my_object), repr(prox))
+        self.assertEqual(`my_object`, `prox`)
+
+    def test_wrap_module_class(self):
+        prox = tpool.Proxy(uuid)
+        self.assertEqual(tpool.Proxy, type(prox))
+        id = prox.uuid4()
+        self.assertEqual(id.get_version(), uuid.uuid4().get_version())
+        self.assert_(repr(prox.uuid4))
+
+    def test_wrap_eq(self):
+        prox = tpool.Proxy(uuid)
+        id1 = prox.uuid4()
+        id2 = prox.UUID(str(id1))
+        self.assertEqual(id1, id2)
+        id3 = prox.uuid4()
+        self.assert_(id1 != id3)
+
+    def test_wrap_nonzero(self):
+        prox = tpool.Proxy(uuid)
+        id1 = prox.uuid4()
+        self.assert_(bool(id1))
+        prox2 = tpool.Proxy([1, 2, 3])
+        self.assert_(bool(prox2))
+
+    def test_multiple_wraps(self):
+        prox1 = tpool.Proxy(uuid)
+        prox2 = tpool.Proxy(uuid)
+        x1 = prox1.uuid4()
+        x2 = prox1.uuid4()
+        del x2
+        x3 = prox2.uuid4()
+
+    def test_wrap_getitem(self):
+        prox = tpool.Proxy([0,1,2])
+        self.assertEqual(prox[0], 0)
+
+    def test_wrap_setitem(self):
+        prox = tpool.Proxy([0,1,2])
+        prox[1] = 2
+        self.assertEqual(prox[1], 2)
+
+    def test_raising_exceptions(self):
+        prox = tpool.Proxy(uuid)
+        def nofunc():
+            prox.never_name_a_function_like_this()
+        self.assertRaises(AttributeError, nofunc)
+
+    def assertLessThan(self, a, b):
+        self.assert_(a < b, "%s is not less than %s" % (a, b))
+
+    def test_variable_and_keyword_arguments_with_function_calls(self):
+        import optparse
+        parser = tpool.Proxy(optparse.OptionParser())
+        z = parser.add_option('-n', action='store', type='string', dest='n')
+        opts,args = parser.parse_args(["-nfoo"])
+        self.assertEqual(opts.n, 'foo')
+
+    def test_contention(self):
+        from greentest import tpool_test
+        prox = tpool.Proxy(tpool_test)
+
+        pool = coros.CoroutinePool(max_size=4)
+        waiters = []
+        waiters.append(pool.execute(lambda: self.assertEquals(prox.one, 1)))
+        waiters.append(pool.execute(lambda: self.assertEquals(prox.two, 2)))
+        waiters.append(pool.execute(lambda: self.assertEquals(prox.three, 3)))
+        for waiter in waiters:
+            waiter.wait()
+
+    def test_timeout(self):
+        import time
+        api.exc_after(0.1, api.TimeoutError())
+        self.assertRaises(api.TimeoutError,
+                          tpool.execute, time.sleep, 0.3)
+
+
+    def dont_test_benchmark(self):
+        """ Benchmark computing the amount of overhead tpool adds to function calls.  Rename to activate."""
+        iterations = 10000
+        def bench(f, *args, **kw):
+            for i in xrange(iterations):
+                f(*args, **kw)
+        def noop():
+            pass
+
+        normal_results = []
+        tpool_results = []
+        for i in xrange(3):
+            start = time.time()
+            bench(noop)
+            end = time.time()
+            normal_results.append(end-start)
+
+            start = time.time()
+            bench(tpool.execute, noop)
+            end = time.time()
+            tpool_results.append(end-start)
+
+        avg_normal = sum(normal_results)/len(normal_results)
+        avg_tpool =  sum(tpool_results)/len(tpool_results)
+        tpool_overhead = (avg_tpool-avg_normal)/iterations
+        print "%s iterations\nTpool overhead is %s seconds per call.  Normal: %s; Tpool: %s" % (
+            iterations, tpool_overhead, normal_results, tpool_results)
+
 
 if __name__ == '__main__':
     tests.main()