08-27-周三_17-09-29

node_modules/traverse/test/has.js

@@ -0,0 +1,17 @@
+'use strict';
+
+var test = require('tape');
+var traverse = require('../');
+
+test('has', function (t) {
+	var obj = { a: 2, b: [4, 5, { c: 6 }] };
+
+	t.equal(traverse(obj).has(['b', 2, 'c']), true);
+	t.equal(traverse(obj).has(['b', 2, 'c', 0]), false);
+	t.equal(traverse(obj).has(['b', 2, 'd']), false);
+	t.equal(traverse(obj).has([]), true);
+	t.equal(traverse(obj).has(['a']), true);
+	t.equal(traverse(obj).has(['a', 2]), false);
+
+	t.end();
+});