diff --git a/testdata/dot-ref/assoc.dot b/testdata/dot-ref/assoc.dot
index db307d3..25a5116 100644
--- a/testdata/dot-ref/assoc.dot
+++ b/testdata/dot-ref/assoc.dot
@@ -7,14 +7,15 @@
 digraph G {
 	edge [fontname="Helvetica",fontsize=10,labelfontname="Helvetica",labelfontsize=10];
 	node [fontname="Helvetica",fontsize=10,shape=plaintext];
+	nodesep=0.25;
+	ranksep=0.5;
 	rankdir=LR;
-	ranksep=1;
 	// UserGroup
-	c24 [label=<<table border="0" cellborder="1" cellspacing="0" cellpadding="2" port="p"><tr><td><table border="0" cellspacing="0" cellpadding="1"><tr><td align="center" balign="center"> UserGroup </td></tr></table></td></tr></table>>, fontname="Helvetica", fontcolor="black", fontsize=10.0];
+	c24 [label=<<table title="UserGroup" border="0" cellborder="1" cellspacing="0" cellpadding="2" port="p"><tr><td><table border="0" cellspacing="0" cellpadding="1"><tr><td align="center" balign="center"> UserGroup </td></tr></table></td></tr></table>>, fontname="Helvetica", fontcolor="black", fontsize=10.0];
 	// User
-	c25 [label=<<table border="0" cellborder="1" cellspacing="0" cellpadding="2" port="p"><tr><td><table border="0" cellspacing="0" cellpadding="1"><tr><td align="center" balign="center"> User </td></tr></table></td></tr></table>>, fontname="Helvetica", fontcolor="black", fontsize=10.0];
+	c25 [label=<<table title="User" border="0" cellborder="1" cellspacing="0" cellpadding="2" port="p"><tr><td><table border="0" cellspacing="0" cellpadding="1"><tr><td align="center" balign="center"> User </td></tr></table></td></tr></table>>, fontname="Helvetica", fontcolor="black", fontsize=10.0];
 	// Password
-	c26 [label=<<table border="0" cellborder="1" cellspacing="0" cellpadding="2" port="p"><tr><td><table border="0" cellspacing="0" cellpadding="1"><tr><td align="center" balign="center"> Password </td></tr></table></td></tr></table>>, fontname="Helvetica", fontcolor="black", fontsize=10.0];
+	c26 [label=<<table title="Password" border="0" cellborder="1" cellspacing="0" cellpadding="2" port="p"><tr><td><table border="0" cellspacing="0" cellpadding="1"><tr><td align="center" balign="center"> Password </td></tr></table></td></tr></table>>, fontname="Helvetica", fontcolor="black", fontsize=10.0];
 	// UserGroup ASSOC User
 	c24:p -> c25:p [taillabel="*", label="", headlabel="*\n\n+user ", fontname="Helvetica", fontcolor="black", fontsize=10.0, color="black", arrowhead=none];
 	// User NAVASSOC Password