net_plugin fix for privacy groups corner case

plugins/net_plugin/net_plugin.cpp

@@ -2029,7 +2029,7 @@ namespace eosio {
       // sync need checks; (lib == last irreversible block)
       //
       // 0. my head block id == peer head id means we are all caught up block wise
-      // 1. my head block num < peer lib - start sync locally
+      // 1. my head block num < peer lib - send handshake (if not sent in handle_message) and wait for receipt of notice message to start syncing
       // 2. my lib > peer head num - send an last_irr_catch_up notice if not the first generation
       //
       // 3  my head block num < peer head block num - update sync state and send a catchup request
@@ -2056,6 +2056,9 @@ namespace eosio {
                   ("ep", c->peer_name())("lib", msg.last_irreversible_block_num)("head", msg.head_num)
                   ("id", msg.head_id.str().substr(8,16)) );
          c->syncing = false;
+         if (c->sent_handshake_count > 0) {
+            c->send_handshake(true);
+         }
          return;
       }
       if (lib_num > msg.head_num ) {

tests/Node.py

@@ -559,7 +559,7 @@ def __exit__(self, exc_type, exc_value, exc_traceback):
             reporter = WaitReporter(self, reportInterval) if reportInterval is not None else None
             ret=Utils.waitForTruth(lam, timeout, reporter=reporter, sleepTime=sleepTime)
 
-        assert ret is not None or errorContext is None, Utils.errorExit("%s." % (errorContext))
+        assert ret or errorContext is None, Utils.errorExit("%s." % (errorContext))
         return ret
 
     def waitForIrreversibleBlock(self, blockNum, timeout=WaitSpec.default()):

tests/eosio_blocklog_prune_test.py

@@ -175,7 +175,8 @@
 
     assert headAdvanced or lvnPostInfo["head_block_num"] >= cfTrxBlockNum, "the light validation node stops syncing"
 
-    fullValidationNode.waitForBlock(cfTrxBlockNum-1, blockType=BlockType.lib, timeout=WaitSpec.calculate(), errorContext="fullValidationNode LIB did not advance")
+    #lib will be cfTrxBlockNum-2 and head cfTrxBlockNum-1 because of when we will receive incomplete block we won't advance lib
+    fullValidationNode.waitForBlock(cfTrxBlockNum-2, blockType=BlockType.lib, timeout=WaitSpec.calculate(leeway=timeForNodesToWorkOutReconnect), errorContext="fullValidationNode LIB did not advance")
     Utils.Print("Ensure full validation node stops syncing")
     headAdvanced = fullValidationNode.waitForHeadToAdvance()
     if headAdvanced:

tests/privacy_scenario_3_test.py

@@ -150,15 +150,7 @@
 
     assert breakTimeout, Print("API Node1 out of sync")
     apiNode1.waitForTransFinalization(trans["transaction_id"])
-
-    #######################################################################
-    # Workaround.
-    # Restart shouldn't be needed here but due to bug in nodeos we have to.
-    # this supposed to be fixed in nodeos and removed
-    apiNode2.kill(signal.SIGTERM)
-    apiNode2.relaunch(cachePopen=True)
-    #######################################################################
-
+
     # after last recorded block number (rbn3) is made irreversible, verify 
     # node2 connects to node1
     # node2 starts syncing