added test to check that kill reschedules the current greenlet

greentest/test__api.py

@@ -0,0 +1,34 @@
+import unittest
+from eventlet.api import sleep, spawn, kill
+
+DELAY = 0.1
+
+class Test(unittest.TestCase):
+
+    def test_killing_dormant(self):
+        state = []
+        def test():
+            try:
+                state.append('start')
+                sleep(DELAY)
+            except:
+                state.append('except')
+                # catching GreenletExit
+                pass
+            # when switching to hub, hub makes itself the parent of this greenlet,
+            # thus after the function's done, the control will go to the parent
+            # QQQ why the first sleep is not enough?
+            sleep(0)
+            state.append('finished')
+        g = spawn(test)
+        sleep(DELAY/2)
+        assert state == ['start'], state
+        kill(g)
+        # will not get there, unless switching is explicitly scheduled by kill
+        assert state == ['start', 'except'], state
+        sleep(DELAY)
+        assert state == ['start', 'except', 'finished'], state
+
+if __name__=='__main__':
+    unittest.main()
+