how about using spy.args Learn more. We use essential cookies to perform essential website functions, e.g. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. i used something like this expect(this.spy.args).to.be.eql([[1],[2],[3],[1],[4]]); where the nested array values are the arguments passed to the function. This allows a suite to be composed as a tree of functions. Match calls with function in arguments. privacy statement. so how to test function that is being invoked for example ten times sequentially but with different arguments? For more information, see our Privacy Statement. In the following spec, the circumference() method is called upon once. I might be just too late, but why not use, I assume it was not an option 4 years ago. Whoops - the problem was a formatting issue. they're used to log you in. In order to create a mock with multiple … jest.toHaveBeenCalledWith(): asserting on parameter/arguments for call(s) Given the following application code which has a counter to which we can add arbitrary values, we’ll inject the counter into another function and assert on the counter.add calls. The toHaveBeenCalledWith matcher will return true if the argument list matches any of the recorded calls to the spy. It's unlikely we will add support for matching across multiple calls. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. to your account, expect($.fn.get).toHaveBeenCalledWith(0,0); You signed in with another tab or window. Expected spy get to have been called with [ [ [ 0 ], [ 0 ] ] ] but was called with [ [ 0 ], [ 0 ] ]. they're used to gather information about the pages you visit and how many clicks you need to accomplish a task. The toHaveBeenCalledWith() matcher verifies whether the spied method has been called with the right argument(s). Am I missing something? It's pretty much clear when jasmine will start collecting args in the order how they were invoked. In the spec below, the circumference() method is called upon by passing the argument 2. Hope this helps. In this tutorial, we illustrate the workings of the toHaveBeenCalled(), toHaveBeenCalledWith() and toHaveBeenCalledTimes() spy matchers. I believe the problem is that Jasmine is using a simple == or === comparison, rather than comparing the elements of arguments individually. Using Jest, how can I check that an argument to a mocked function is a function? We consider the constructor function below, The toHaveBeenCalled() matcher verifies whether the spied method has been called or not. You signed in with another tab or window. expect($.fn.get).toHaveBeenCalledWith([ [0],[0] ]); See Running the examples to get set up, then run: npm test src/to-have-been-called-with.test.js We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. You can always update your selection by clicking Cookie Preferences at the bottom of the page. This is the case, where … expect($.fn.get).toHaveBeenCalledWith([0],[0]); The toHaveBeenCalledWith matcher supports arguments from a single call only because there's no clear way to distinguish between calls in the matcher arguments. This example also shows how you can nest multiple asymmetric matchers, ... .toHaveBeenCalledWith(arg1, arg2, ...) Also under the alias: ... (also known as "deep" equality). the method will be equal to the first spy.. if are already spying on a method and you want the original method to be called instead you should call andCallThrough() which will override the first spy behavior. I suppose that we should have smth like this toHaveBeenCalledWith([1], [2], ...[10]). You can always update your selection by clicking Cookie Preferences at the bottom of the page. I'd suggest writing a custom matcher with a prescribed argument convention of your choice, which under the hood calls argsForCall or calls.args. Expected spy to have been called with [ [ 'baz', 'qux' ] ] but was called with [ [ 'baz', 'qux' ] ]. It calls Object.is to compare primitive values, which is even better for testing than === strict equality operator. to your account. Expected spy to have been called with [ [ 'baz', 'qux' ] ] but was called with [ 'baz', 'qux' ]. Actually, I found out that you can use the obj.method.calls.allArgs() for this to work This issue was closed . Sign in Sign in Have a question about this project? We’ll occasionally send you account related emails. We use essential cookies to perform essential website functions, e.g. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. It's unlikely we will add support for matching across multiple calls. In the spec below, the circumference() method is called upon by passing the argument 2. The toHaveBeenCalledWith() matcher returns true and the spec passes Sign up for free to join this conversation on GitHub . For more information, see our Privacy Statement. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. privacy statement. Learn more, toHaveBeenCalledWith works not with multiple calls. $(selector).get(0); is called twice in the function I'm testing. The following spec returns true as the method circumference() is called, The toHaveBeenCalledWith() matcher verifies whether the spied method has been called with the right argument(s). Have a question about this project? By clicking “Sign up for GitHub”, you agree to our terms of service and Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. but it does not work. The toHaveBeenCalledWith() matcher returns true and the spec passes. they're used to gather information about the pages you visit and how many clicks you need to accomplish a task. Hope it helps :). Thanks for using Jasmine! If you want to check the arguments for multiple calls to your spy, you should use toHaveBeenCalledWith multiple times. The toHaveBeenCalledTimes() matcher verifies whether the spied method has been called a specified number of times (which is passed as an argument). Therefore, will not be able to use toHaveBeenCalledWith, for this kind of tests. Expected spy get to have been called with [ 0, 0 ] but was called with [ [ 0 ], [ 0 ] ] The toHaveBeenCalledWith matcher supports arguments from a single call only because there's no clear way to distinguish between calls in the matcher arguments. node.js - tomatchsnapshot - jest tohavebeencalledwith multiple calls . @jamesarosen What was the formatting issue? Jasmine doesn't currently have a way to verify order of calls, and toHaveBeenCalledWith will probably never be modified to verify multiple spy invocations in the same matcher call. Learn more. I was fustrated that this wasn't working and I found out that you can use the obj.method.calls.allArgs() for this to work. Calls to describe can be nested, with specs defined at any level. It returns true if there has been any one call with the matching argument(s). GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. I know I can check the args directly with argsForCall but I think toHaveBeenCalledWith reads better and is more appropriate. The toHaveBeenCalledTimes() matcher is passed the number 1 as an argument, to which it returns true, and the spec passes. Expected spy get to have been called with [ [ 0 ], [ 0 ] ] but was called with [ [ 0 ], [ 0 ] ] Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. I seem to be having the same problem, Actually, I found out that you can use the obj.method.calls.allArgs() for this to work. And why @ragaskar you said that it's unclear? Already on GitHub? Successfully merging a pull request may close this issue. By clicking “Sign up for GitHub”, you agree to our terms of service and How do I work this? It returns true if there has been any one call with the matching argument(s). Already on GitHub? Learn more, toHaveBeenCalledWith fails with multiple arguments. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. Successfully merging a pull request may close this issue. they're used to log you in. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. setting isSpy to false is a very bad idea, since then you spy on a spy and when Jasmine clears the spies at the end of your spec you won't get the original method. It returns true if the spy was called.

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