08-27-周三_17-09-29

node_modules/traverse/test/stringify.js

@@ -0,0 +1,35 @@
+'use strict';
+
+var test = require('tape');
+var traverse = require('../');
+
+test('stringify', function (t) {
+	var obj = [5, 6, -3, [7, 8, -2, 1], { f: 10, g: -13 }];
+
+	var s = '';
+	traverse(obj).forEach(function (node) {
+		if (Array.isArray(node)) {
+			this.before(function () { s += '['; });
+			this.post(function (child) {
+				if (!child.isLast) { s += ','; }
+			});
+			this.after(function () { s += ']'; });
+		} else if (typeof node === 'object') {
+			this.before(function () { s += '{'; });
+			this.pre(function (x, key) {
+				s += '"' + key + '":';
+			});
+			this.post(function (child) {
+				if (!child.isLast) { s += ','; }
+			});
+			this.after(function () { s += '}'; });
+		} else if (typeof node === 'function') {
+			s += 'null';
+		} else {
+			s += node.toString();
+		}
+	});
+
+	t.equal(s, JSON.stringify(obj));
+	t.end();
+});