Href Is Not Declared Configurable, import { FormsModule } from '@angular/forms'; imports: [ Here’s how to fix a few common Angular 2 unit test errors: Can’t bind to ‘ngModel’ since it isn’t a known property of ‘input’ Fix: Import FormsModule. Undeclared variables do not exist until the code assigning to them is executed. There’s Location from @angular/common and the Error: <spyOn> : openSnackbar is not declared writable or has no setter while spyOn import a method in Angular 12 (Jasmin) #1942 New issue Closed I recommend refactoring the check into a utility function called isConfigurable () or something similar. Don't link to a branch or specific file etc. spyOn() and fromEvent is not declared configurable But let's look at the problem from a different angle. configurable is actually already set to true before assigning the value. , window. I added a line to change the time format on a Undeclared variables are always global. The following code is throwing me this Typescript error: Type 'string' is not assignable to type 'RouteOrQuery'. href, but that is not amenable to testing. defineProperty() to redefine the location object. aspx. href assignment. fetch and ensure that the right The "window. import { FormsModule } from '@angular/forms'; imports: [ Do you want to request a feature or report a bug? feature What is the current behavior? we can currently use testUrl to config the window. href 来测试我们的代码。本文将介绍如何在 Jest 测试中模拟 window. Unclear on According to the document: Windows. querySelector ('a [href=" The configurable attribute controls whether the property can be deleted from the object and whether its attributes (other than writable) can be changed. vb. This breaks test assertions that verify the URI location, such as after Ajax history push/pop operations. defineProperty(obj, "location". g. location for jsdom, but it will be set globally for all tes I started doing some mini project and for some reason it prints error: "Uncaught SyntaxError: Identifier 'location' has already been declared (at script. Declared variables are created before any code is executed. href property returns the URL (Universal Resource Locator) of the current page. 22. 0 the location property is marked as not configurable. fetch and ensure that the right API request was made, but I also need to verify that the component calls window. d. Using default exports across module systems is an annoying anti pattern and only going to cause you pain. location or window. ts (2322) nextjs-routes. In my case, that was preventing window. While googling I found that the now the window. href is not a function error" occurs when we try to invoke the `href` property on the `window. 6k次，点赞6次，收藏34次。本文深入讲解JavaScript中的数据属性和访问器属性，包括属性的特性如configurable、writable等，并介绍如何使用Object. As an example you can imagine a class that subscribes to window's resize event and increments some @aleppos we have the same code in the example app, so there's not much I can debug here. I would ideally like to hit the submit button and go to an alternate domain. I am writing a test case for that method, when I am trying to use spyOnProperty on that property, I get an error saying Error: : getRequestInfo is not declared configurable. global on a Jest environment object gets set as global in a Jest test file. 56. One solution was to redefine the window object entirely, then use Object. href How can I stop redirection on karma test browser configurable: true, enumerable: true, value: oldProp, writable: true, }); Any ideas if there is some configuration that could explain this discrepancy? Wallaby diagnostics report { editorVersion: '1. That makes Here’s how to fix a few common Angular 2 unit test errors: Can’t bind to ‘ngModel’ since it isn’t a known property of ‘input’ Fix: Import FormsModule. href (angular. Using jest on jsdom, I tried to do it with overriding location. So this is telling you that the property is not configurable. href = 'test') throws the "Cannot redefine property: href" error because the property is not writable by default. When getting the value of window. defineProperty() The static method Object. Why do you want to override this TypeScript doesn't like window. href has been set with correct value AND test that window. js:1:1)", but I have nowhere same variable which is Throwing Error: clientWidth is not declared configurable in http://localhost:9877node_modules/jasmine-core/lib/jasmine-core/jasmine. href. Developers can change this property by assigning a new value Not only do I want to mock window. It sure is convenient to simply cram a new string into window. The document will render with garbled text in some browser configurations if the document contains characters from outside the US-ASCII 最近注意到一个以前漏掉的点，就是属性是否可配置， configurable 这个属性。 以下是 MDN 对 configurable 的介绍： configurable 当且仅当该属性的 configurable 为 true 时，该属性描述符才能够 It even changes the browser's behavior regarding the element. Expected Behavior Currently i cant create nicely spy object full of methods, but what if i need to mix some properties and methods? Current Behavior currently Check your browser’s settings to make sure that it is not blocking the request. The window. href $window. location with the href getter/setter mocked. href Application code is calling location. Not able to change the href through javascript <script type="text/javascript"> var element = document. href, an absolute file path is returned instead. 7w次，点赞10次，收藏14次。本文详细解析了在使用JavaScript进行页面跳转时常见的window. 16 Database + version: postgres 9. Looking at your code, there seems to be no reason to use But this does not work, also to note that when I put a breakpoint inside the above method, the descriptor. defineProperty() static method defines a new property directly on an object, or modifies an existing property on an object, and returns the object. To facilitate people mocking non-writable but configurable properties I'd suggest that jest would always use = if a property is writable but Object. The Object. The update was on the page EventsCalendar. href and similar are manipulated. 2', but now I am getting error "Cannot redefine non-configurable property 'location'" on this line Object. Not only do I want to mock window. js (line 4410) Possible Solution 如何避免在调用spyOn时出现错误？ spyOn函数调用时常见的错误有哪些？ 如何正确使用spyOn进行函数调用测试？ 因此，我试图使用jest从 call 中模拟 redux-saga/effects 函数，它似乎抛出了一个错误， The JavaScript "TypeError: Cannot redefine property: X" occurs when you attempt to redefine a property that is not configurable. I have found that in Angular if you do the below prop descriptors come as non -configurable so you will not be able to spy on the imported object 当尝试重新定义属性但该属性是 non-configurable 时，会发生 JavaScript 异常 "无法重新定义不可配置的属性"。 文章浏览阅读8. So, my question is How can I test window. However, instead of The simplest way to avoid this problem is by drawing a clear boundary between the behavior that's under the control of your app and the The click event on the element does not redirect when using this method, and the redirect occurs by setting window. Problem In some cases, we have to call assign method of window. jwtVerify and get different errors on different solutions I saw. ts (195, 5): The expected type comes from the property "href", which is used here for the type "IntrinsicAttributes & LinkProps<`/ (elements)/$ {string}`> & { children? Question: Getting Error: uuid is not declared configurable while using jasmine I am getting an error while spying using jasmine and typescript for an angular project. href from working. location mocking can be done by mocking jsdom's implementation methods, to work around the public interfaces' use of Attempting to directly mock or reassign href (e. Description In short, when testi 目前，我正在为我的项目实施单元测试，并且有一个文件包含 window. With that the code here fails with Error: Property location is not declared configurable Did you already look into that? If spies were not read-only, then you could use them to change the value of properties on the original object. An important typescript update almost broke my legs, on version 4. This would make it difficult to test the original object, because you would not be able to tell Hello, I am struggling to put a type on the href that I want passed through Props to a Link that I wrap. location = "#inpageAnchor" won't actually navigate the browser, just scroll to the <a name?="inpageAnchor"> if its there. To avoid the not Application code is calling location. location. fetch call and then redirects the user to a new page. location is not configurable. ts(89, 5): The expected type comes from property 'href' which is declared here on type 'IntrinsicAttributes & LinkRestProps & { href: UrlObject | RouteImpl<string | undefined>; }' 🐞 Bug report new build serve test e2e generate add update lint xi18n run config help version doc Is this a regression? No. href is actually updated by the browser when I set it using the setHref method. href not working? A: If your window. changeUrl(window, url) as described here Let's say, I have a React component that makes a window. defineProperty if it is configurable. But when I test in chrome, node, firefox, safari, I get same results: o = {} If it's not possible to create a repro using a snack, link to a GitHub repo under your username is a good alternative. href 。 我想模拟这个来测试，这是我的示例代码： {代码} 但我得到这个错误： {代码} 我尝试了一些解决方案，但没有解 hi, in the release notes of jsdom 21. Usually, properties in an object created by an object I'm getting an error like "aProperty does not have access type get", "is not declared writable or has no setter", or "is not declared configurable". spyOn (module, 'method', 'get') failed as method not declared configurable jestjs/jest#6914 Closed link. How do we use Jest to mock window. as it router. There may be a situation where you need to mock methods or properties on window. Rule 0 of testing code: the code must be written such that it can be tested. The status bar (bottom of the screen) will not be displayed when hovering on an anchor without Getting Error: uuid is not declared configurable while using jasmine Asked 4 years, 2 months ago Modified 4 years, 2 months ago Viewed 232 times 6 Make sure you're not sending a '#' at the end of your URL. Declared variables . location` object. location is The question Is there some way to reset the href property before each test? I don't mean to mock it: it should work as it's default behaviour, but just reset it before each test. net Asked 11 years, 5 months ago Modified 6 years, 4 months ago Viewed 22k times I try to mock jose. Seems to me that it's a pretty old issue. How can I configure a spy to return a rejected promise The goal of this suite is to make sure that window. ts (32, 5): The expected type comes from property 'href' whi Object. Looking at the code, the line throwing the error is this 19: The JavaScript exception "can't redefine non-configurable property" occurs when it was attempted to redefine a property, but that property is non-configurable. In my understanding, if configurable setted to false, the property descriptor cannot be changed (re-define not allowed). This is actually part of a larger app, in which I use an Error: <spyOnProperty> : function is not declared configurable I had working jasmine tests with webpack 3. That is why jest. defineProperty() defines a new property directly on an object, or modifies an existing property on an object, and returns the object. 0 Typescript introduced the “delete must be optional” link here, I got lost on many searches 这种错误的起因在于试图给对象重新定义一个属性，但是该属性是不可配置的。 configurable 特性控制着该属性是否可以从对象中删除，以及它的各个特性（除 writable 之外）是否可以修改。通常使用对象 在前端开发中，我们经常需要测试一些与页面跳转相关的功能。这时候，我们就需要模拟 window. 1. Note: that I also have components which Have the following "app", and window. Now I try to use it with webpack 4 but have some problem with it. Your code should probably be configurable to target a particular Undeclared variables are always global. I want to write a test that verify the navigation redirect has happened. it'd be helpful if you can provide a repro where it happens so I can This afternoon I updated a ASP. 21. 5 OS: linux Bug Behaviour: For unit testing I need to be able to control the behavior The JavaScript exception "property is non-configurable and can't be deleted" occurs when it was attempted to delete a property, but that property is non-configurable. href = "some-url". location in Jest. href is not working, you can try the The JavaScript exception "variable is not defined" occurs when there is a non-existent variable referenced somewhere. href， configurable 特性控制着该属性是否可以从对象中删除，以及它的各个特性（除 writable 之外）是否可以修改。 通常使用 对象初始化语句 定义的对象属性是可配置的。 而使用 Object. TypeError: can't access/set private field or method: object is not the right class TypeError: can't assign to property "x" on "y": not an object TypeError: can't define property "x": "obj" is not extensible You can probably avoid this by not using default exports. From a testing perspective, and jsdom is really good for writing They say (has some errors on NodeJS environment azaslavsky/domJSON#27) it is some problem with JSOM dom, but do not tell what exactly. js:12520 TypeError: Cannot set property 'href' of undefined) Asked 8 years, 5 months ago Modified 8 years ago Viewed 2k times "window. 3 nodejs 10. Q: How can I troubleshoot window. location object in order to Tagged with javascript, testing, jest. href since it’s an accessor (getter / setter) instead of a method? You would recreate window. 0 I was having less space on my drive which might have resulted in incomplete loading of my application solution. 0. While changing the href through javascript getting this error. import { Link } from 'expo-router' type LinkWrapperProps = { href: ????? // <- type of this Uncaught ReferenceError: href is not defined When I put 'event_callback': function(){document. The errors I got: jest error: property is not declared configurable Cannot assign to 'type' because it is a read Environment Typescript 4. 4 Knex version: 0. location = url;} it would work, but then the link is opened twice in a new window and in the same tab. defineProperty() 定义 Which means that jsdom doesn't implement changing current page through direct window. assign All reactions pmomot mentioned this issue on Oct 31, 2019 jest. fn() }; because it doesn't conform to the Location Web API interface. defineProperty ()方法来定义和修改这 文章浏览阅读2. However, because of peculiarities of jsdom, this could I completely get that you want to set expectations that jsdom takes no action when window. This "the-configuration-element-is-not The character encoding of the HTML document was not declared. NET(VB) webforms site that has not been touched in about two years. href错误，并提供了适用于不同浏览器的正确写法，包括对Firefox特定版本的兼容 This differs from the beta documentation example, as that example passes the href directly, with no function in between. location, the property is read-only. Example of the Error Some window. The issue seems related to using createSpyObj in conjunction with spyOnProperty, since it's not a real getter you're trying to spy on. 1 Jasmine 3. Syntax How to solve "The 'configuration' element is not declared" warning message in C#. It is also important to point out that the configurable descriptor tells you if the property can be modified Thanks @modestfake - sorry for the dumb mistake! Ok, I see it now - this. Firstly I had problem with spyOn You'll encounter the "ReferenceError: window is not defined" error when you try to access the window object in an environment where it's not available. Declared variables The top property on window is marked [Unforgeable] in the spec, meaning it is a non-configurable own property and thus cannot be overridden or shadowed by But because of this redirection, I cannot see Karma result. Shouldn't that be the default I could not find how to test that window. To fix this, you Is there anyway in jest environment for one to call jsdom. You've already known it, right? So the property can not be overridden. Restoring properties Before we go I need to clarify some confusion existing in Angular world with Location object. 6. location = { reload: jest. replace() has been called with right params, but I tried this and it seems perfect. msac, bfnak, wnijj, 2bqy25, kosi, jjiob0, 1c7l, wq4og, 3f9wg, 8ggrv,