[Checkins] SVN: ZODB/branches/jim-async-client/src/ZEO/tests/testZEO.py Added a minimal heartbeat test. This is really hard to test properly

[Jim Fulton]

Log message for revision 69170:
  Added a minimal heartbeat test.  This is really hard to test properly
  because we can't see the data flow between the client and server and
  we can't really tell what's going on in the server very well. :(
  

Changed:
  U   ZODB/branches/jim-async-client/src/ZEO/tests/testZEO.py

-=-
Modified: ZODB/branches/jim-async-client/src/ZEO/tests/testZEO.py
===================================================================
--- ZODB/branches/jim-async-client/src/ZEO/tests/testZEO.py	2006-07-18 11:30:37 UTC (rev 69169)
+++ ZODB/branches/jim-async-client/src/ZEO/tests/testZEO.py	2006-07-18 11:30:39 UTC (rev 69170)
@@ -37,8 +37,13 @@
 from ZODB.tests.testDemoStorage import DemoStorageWrappedBase
 
 from ZEO.ClientStorage import ClientStorage
+
+import ZEO.zrpc.connection
+
 from ZEO.tests import forker, Cache, CommitLockTests, ThreadTests
 
+import ZEO.tests.ConnectionTests
+
 logger = logging.getLogger('ZEO.tests.testZEO')
 
 class DummyDB:
@@ -204,6 +209,60 @@
     def getConfig(self):
         return """<mappingstorage 1/>"""
 
+
+class HeartbeatTests(ZEO.tests.ConnectionTests.CommonSetupTearDown):
+    """Make sure a heartbeat is being sent and that it does no harm
+
+    This is really hard to test properly because we can't see the data
+    flow between the client and server and we can't really tell what's
+    going on in the server very well. :(
+
+    """
+
+    def setUp(self):
+        # Crank down the select frequency
+        self.__old_client_timeout = ZEO.zrpc.connection.client_timeout
+        ZEO.zrpc.connection.client_timeout = 0.1
+        ZEO.zrpc.connection.client_trigger.pull_trigger()
+        ZEO.tests.ConnectionTests.CommonSetupTearDown.setUp(self)
+
+    def tearDown(self):
+        ZEO.zrpc.connection.client_timeout = self.__old_client_timeout
+        ZEO.zrpc.connection.client_trigger.pull_trigger()
+        ZEO.tests.ConnectionTests.CommonSetupTearDown.tearDown(self)
+
+    def getConfig(self, path, create, read_only):
+        return """<mappingstorage 1/>"""
+
+    def checkHeartbeatWithServerClose(self):
+        # This is a minimal test that mainly tests that the heartbeat
+        # function does no harm.
+        client_timeout_count = ZEO.zrpc.connection.client_timeout_count
+        self._storage = self.openClientStorage()
+        time.sleep(1) # allow some time for the select loop to fire a few times
+        self.assert_(ZEO.zrpc.connection.client_timeout_count
+                     > client_timeout_count)
+        self._dostore()
+        self.shutdownServer()
+        for i in range(91):
+            # wait for disconnection
+            if not self._storage.is_connected():
+                break
+            time.sleep(0.1)
+        else:
+            raise AssertionError("Didn't detect server shutdown in 5 seconds")
+
+    def checkHeartbeatWithClientClose(self):
+        # This is a minimal test that mainly tests that the heartbeat
+        # function does no harm.
+        client_timeout_count = ZEO.zrpc.connection.client_timeout_count
+        self._storage = self.openClientStorage()
+        self._storage.close()
+        time.sleep(1) # allow some time for the select loop to fire a few times
+        self.assert_(ZEO.zrpc.connection.client_timeout_count
+                     > client_timeout_count)
+
+
 class DemoStorageWrappedAroundClientStorage(DemoStorageWrappedBase):
 
     def getConfig(self):
@@ -239,6 +298,7 @@
                 FileStorageTests,
                 MappingStorageTests,
                 DemoStorageWrappedAroundClientStorage,
+                HeartbeatTests,
                ]
 
 def test_suite():