我正在为我的Backbone缓存编写使用Jasmine的单元测试,并试图使用Sinon.js模拟函数响应。对于不同的测试,我预计会发生不同的事情,所以我在每次测试之前创建一个模拟并删除它,然后在测试本身内填充行为。但是,我收到错误并且测试失败。试图包装已经包装的sendRequest
这里是我的规格只有相关测试(其它测试不使用模拟):
describe("mysite.core.Cache.XFooInfo", function() {
var fnMock;
beforeEach(function() {
fnMock = sinon.mock(fn);
});
afterEach(function() {
delete fnMock;
});
it("should make a request after function fooCreated called", function() {
fnMock.expects("sendRequest").once().withExactArgs("ModuleFoo", "getFoo", ["1000"]);
events.trigger("fooCreated", [{Args:[test.data.XFooInfo]}]);
fnMock.verify();
});
});
describe("mysite.core.Cache.XFooBarInfo", function() {
var fnMock;
beforeEach(function() {
fnMock = sinon.mock(fn);
});
afterEach(function() {
delete fnMock;
});
it("should make a request after function booUpdated called", function() {
var booCopy = $.extend(true, {}, test.data.XBooInfo);
booCopy[0].Args[0].FooID = "12345";
fnMock.expects("sendRequest").once().withExactArgs("ModuleFoo", "getFoo", ["12345"]);
events.trigger("booUpdated", booCopy);
fnMock.verify();
});
});
的第一个测试工作正常,并通过。第二个测试,不过,给我这个错误:
TypeError: Attempted to wrap sendRequest which is already wrapped
at Object.wrapMethod (https://localhost:8443/mysite/web/tests/libs/sinon-1.7.1.js:528:23)
at Object.expects (https://localhost:8443/mysite/web/tests/libs/sinon-1.7.1.js:2092:27)
at null.<anonymous> (https://localhost:8443/mysite/web/shasta-cList-tests/spec/CacheSpec.js:909:15)
at jasmine.Block.execute (https://localhost:8443/mysite/web/tests/libs/jasmine-1.2.0.rc3/jasmine.js:1024:15)
at jasmine.Queue.next_ (https://localhost:8443/mysite/web/tests/libs/jasmine-1.2.0.rc3/jasmine.js:2025:31)
at jasmine.Queue.start (https://localhost:8443/mysite/web/tests/libs/jasmine-1.2.0.rc3/jasmine.js:1978:8)
at jasmine.Spec.execute (https://localhost:8443/mysite/web/tests/libs/jasmine-1.2.0.rc3/jasmine.js:2305:14)
at jasmine.Queue.next_ (https://localhost:8443/mysite/web/tests/libs/jasmine-1.2.0.rc3/jasmine.js:2025:31)
at jasmine.Queue.start (https://localhost:8443/mysite/web/tests/libs/jasmine-1.2.0.rc3/jasmine.js:1978:8)
at jasmine.Suite.execute (https://localhost:8443/mysite/web/tests/libs/jasmine-1.2.0.rc3/jasmine.js:2450:14)
我找不到在Sinon.js文档什么告诉我什么,我做错了。我知道verify
也对它所嘲笑的所有功能做了restore
,我认为这足以让我为同一功能编写新的expects
行为,但显然我错了。
这样做的正确方法是什么?
删除变量是JS做一个奇怪的事情,它通常用来删除对象的一员,就像删除myobj.arbitraryAttribute; 另外你的评论有语法错误,你不能说var fn.sendRequest =任何东西。要么你说var identifier = something;或fn.sendRequest =某事。 所以我认为你有一些问题与普遍的js理解。一般来说,如果sinon抱怨对象已经被包装了,那么你需要在包装对象上调用.restore(),在你的情况下,在每次测试结束时。 –