Changed tests to not depend on ZODB underware

src/ZEO/tests/IterationTests.py

@@ -174,8 +174,9 @@ Start a server:
 
 Open a client storage to it and commit a some transactions:
 
-    >>> import ZEO, transaction
-    >>> db = ZEO.DB(addr)
+    >>> import ZEO, ZODB, transaction
+    >>> client = ZEO.client(addr)
+    >>> db = ZODB.DB(client)
     >>> conn = db.open()
     >>> for i in range(10):
     ...     conn.root().i = i
@@ -183,19 +184,19 @@ Open a client storage to it and commit a some transactions:
 
 Create an iterator:
 
-    >>> it = conn._storage.iterator()
+    >>> it = client.iterator()
     >>> tid1 = it.next().tid
 
 Restart the storage:
 
     >>> stop_server(adminaddr)
-    >>> wait_disconnected(conn._storage)
+    >>> wait_disconnected(client)
     >>> _ = start_server('<filestorage>\npath fs\n</filestorage>', addr=addr)
-    >>> wait_connected(conn._storage)
+    >>> wait_connected(client)
 
 Now, we'll create a second iterator:
 
-    >>> it2 = conn._storage.iterator()
+    >>> it2 = client.iterator()
 
 If we try to advance the first iterator, we should get an error:
 

src/ZEO/tests/testZEO.py

@@ -1561,7 +1561,8 @@ def gracefully_handle_abort_while_storing_many_blobs():
     >>> logging.getLogger().addHandler(handler)
 
     >>> addr, _ = start_server(blob_dir='blobs')
-    >>> c = ZEO.connection(addr, blob_dir='cblobs')
+    >>> client = ZEO.client(addr, blob_dir='cblobs')
+    >>> c = ZODB.connection(client)
     >>> c.root.x = ZODB.blob.Blob(b'z'*(1<<20))
     >>> c.root.y = ZODB.blob.Blob(b'z'*(1<<2))
     >>> t = c.transaction_manager.get()
@@ -1578,7 +1579,7 @@ Now we'll try to use the connection, mainly to wait for everything to
 get processed. Before we fixed this by making tpc_finish a synchronous
 call to the server. we'd get some sort of error here.
 
-    >>> _ = c._storage._server.loadEx(b'\0'*8)
+    >>> _ = client._server.loadEx(b'\0'*8)
 
     >>> c.close()