WIP tests

tests/tnt/router_call_test.go

@@ -95,4 +95,24 @@ func TestRouterCallProto(t *testing.T) {
 			require.Equal(t, expect[0], typed, "RouterCallImpl getTyped resp ok for arglen %d", argLen)
 		}
 	}
+
+	// simulate vshard error
+
+	// 1. Replace replicaset for bucketID
+	rs, err := router.BucketResolve(ctx, bucketID)
+	require.Nil(t, err, "BucketResolve finished with no err")
+	rsMap := router.RouterRouteAll()
+
+	for k, v := range rsMap {
+		if rs != v {
+			res, err := router.BucketSet(bucketID, k)
+			require.Nil(t, err, "BucketSet finished with no err")
+			require.Equal(t, res, v)
+			break
+		}
+	}
+
+	// 2. Try to call something
+	_, _, err = router.RouterCallImpl(ctx, bucketID, callOpts, "echo", args)
+	require.Nil(t, err, "RouterCallImpl echo finished with no err even on dirty bucket map")
 }