Explicitly set options when testing virtual trees

Author: kgryte

lib/node_modules/@stdlib/plot/components/svg/rug/test/test.opacity.js

@@ -242,9 +242,13 @@ tape( 'the value of the `opacity` property determines the tick (tassel) opacity
 	var node;
 
 	node = ctor({
+		'autoRender': false,
+		'color': '#aaa',
 		'data': [ 0.10, 0.50, 0.90 ],
+		'label': '',
 		'opacity': 0.9,
-		'autoRender': false
+		'orientation': 'bottom',
+		'size': 6
 	});
 	vtree = node.render();
 
@@ -262,9 +266,13 @@ tape( 'the value of the `opacity` property determines the tick (tassel) opacity
 	var node;
 
 	node = ctor({
+		'autoRender': false,
+		'color': '#aaa',
 		'data': [ 0.10, 0.50, 0.90 ],
+		'label': '',
 		'opacity': 0.9,
-		'autoRender': false
+		'orientation': 'bottom',
+		'size': 6
 	});
 	vtree = node.render();