38 lines
1.3 KiB
JavaScript
38 lines
1.3 KiB
JavaScript
"use strict";
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/* eslint-disable no-empty-function */
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var assert = require("@sinonjs/referee").assert;
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var className = require("./class-name");
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describe("className", function() {
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it("returns the class name of an instance", function() {
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// Because eslint-config-sinon disables es6, we can't
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// use a class definition here
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// https://github.com/sinonjs/eslint-config-sinon/blob/master/index.js
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// var instance = new (class TestClass {})();
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var instance = new (function TestClass() {})();
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var name = className(instance);
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assert.equals(name, "TestClass");
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});
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it("returns 'Object' for {}", function() {
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var name = className({});
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assert.equals(name, "Object");
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});
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it("returns null for an object that has no prototype", function() {
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var obj = Object.create(null);
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var name = className(obj);
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assert.equals(name, null);
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});
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it("returns null for an object whose prototype was mangled", function() {
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// This is what Node v6 and v7 do for objects returned by querystring.parse()
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function MangledObject() {}
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MangledObject.prototype = Object.create(null);
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var obj = new MangledObject();
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var name = className(obj);
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assert.equals(name, null);
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});
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});
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