From 82add26091fdac77d3668e293840c50193573e48 Mon Sep 17 00:00:00 2001
From: Magnus Jacobsson <Magnus.Jacobsson@berotec.se>
Date: Tue, 30 Mar 2021 08:13:17 +0200
Subject: [PATCH] Fix incorrect zoom test exposed by d3-transition fix

The original test was incorrect since it tried to reuse a transition
that had expired. This went unnoticed until
https://github.com/d3/d3-transition/issues/59 was fixed.
---
 test/zoom-test.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/zoom-test.js b/test/zoom-test.js
index 849d1b0c..99a2b9fe 100644
--- a/test/zoom-test.js
+++ b/test/zoom-test.js
@@ -281,6 +281,7 @@ tape("zooming rescales transforms during transitions.", function(test) {
         );
 
         graphviz
+            .transition(d3_transition.transition().duration(100))
             .renderDot('digraph {a -> b; b -> c}')
             .on('transitionStart', function() {
                 test.ok(graphviz._zoomBehavior, 'The zoom behavior is attached when transition starts');