08-27-周三_17-09-29

node_modules/traverse/test/instance.js

@@ -0,0 +1,17 @@
+'use strict';
+
+var test = require('tape');
+var traverse = require('../');
+var EventEmitter = require('events').EventEmitter;
+
+test('check instanceof on node elems', function (t) {
+	var counts = { emitter: 0 };
+
+	traverse([new EventEmitter(), 3, 4, { ev: new EventEmitter() }])
+		.forEach(function (node) {
+			if (node instanceof EventEmitter) { counts.emitter += 1; }
+		});
+	t.equal(counts.emitter, 2);
+
+	t.end();
+});