Check quorum scenario (#5911)

tests/raft_scenarios/check_quorum

@@ -1,21 +1,42 @@
-nodes,0,1,2,3
-connect,0,1
-connect,0,2
-connect,0,3
-connect,1,2
-connect,1,3
-connect,2,3
+start_node,0
+assert_is_primary,0
+emit_signature,2
+
+assert_is_primary,0
+assert_commit_idx,0,2
+
+trust_node,2,1
+emit_signature,2
 
-# Node 0 starts first, and wins the first election
-periodic_one,0,110
 dispatch_all
-
 periodic_all,10
 dispatch_all
+assert_commit_idx,0,4
+
+trust_node,2,2
+emit_signature,2
+
+dispatch_all
+periodic_all,10
+dispatch_all
+assert_commit_idx,0,6
+
+trust_node,2,3
+emit_signature,2
+
+dispatch_all
+periodic_all,10
+dispatch_all
+assert_commit_idx,0,8
+
+dispatch_all
+periodic_all,10
+dispatch_all
+assert_state_sync
 
 # An initial entry is written and successfully replicated
-replicate,1,helloworld
-emit_signature,1
+replicate,2,helloworld
+emit_signature,2
 
 periodic_all,10
 dispatch_all