-# if this fails, you need libmagickcore-6.q16-2-extra installed
-is(size("$outpath/10x-emptysquare.png"), "10x10");
+ok(! -e "$outpath/30x-redsquare.png");
+ok($outhtml =~ /width="30" height="30".*expecting 30x30/);
+
+if ($SVGS_WORK) {
+ # if this fails, you need libmagickcore-6.q16-2-extra installed
+ is(size("$outpath/10x-emptysquare.png"), "10x10");
+}
+