test__pool.py: add a few tests

greentest/test__pool.py

@@ -246,7 +246,7 @@ class TestPoolUnlimit(TestPool):
     size = None
 
 
-class TestJoin(greentest.GenericWaitTestCase):
+class TestJoinSleep(greentest.GenericWaitTestCase):
 
     def wait(self, timeout):
         p = pool.Pool()
@@ -254,6 +254,29 @@ class TestJoin(greentest.GenericWaitTestCase):
         p.join(timeout=timeout)
 
 
+class TestJoinEmpty(greentest.TestCase):
+    switch_expected = False
+
+    def test(self):
+        p = pool.Pool()
+        p.join()
+
+
+class TestSpawn(greentest.TestCase):
+    switch_expected = True
+
+    def test(self):
+        p = pool.Pool(1)
+        self.assertEqual(len(p), 0)
+        p.spawn(gevent.sleep, 0.01)
+        self.assertEqual(len(p), 1)
+        p.spawn(gevent.sleep, 0.01)
+        self.assertEqual(len(p), 1)
+        self.assertEqual(len(p), 1)
+        gevent.sleep(0.019)
+        self.assertEqual(len(p), 0)
+
+
 if __name__=='__main__':
     greentest.main()