I’m using the webpack template generated by Vue’s CLI and have been trying to add some unit tests. And example has already been provided and it works perfectly: Then I try to add another test which I copied straight from Vue’s documentation (Documentation link) but something weird happened: I got the following error: So it seems like Hello.created gives me
Tag: unit-testing
Mocking globals in Jest
Is there any way in Jest to mock global objects, such as navigator, or Image*? I’ve pretty much given up on this, and left it up to a series of mockable utility methods. For example: Testing this tiny function is simple, but crufty and not deterministic at all. I can get 75% of the way there, but this is about
How to check multiple arguments on multiple calls for jest spies?
I have the following function in a React component: This is my test that at least gets the spy to be called: However, the assertion is not working: What is the right way to use toHaveBeenCalledWith? Answer I was able mock multiple calls and check the arguments this way: where mockFn is your mocked function name.
How do I stub a chain of methods in Sinon?
I know how to use stub to replace one function. But now I have a line in my function I want to test that I need to stub that looks like this So there is a chain of function here and I’m unsure what I need to do. How do I stub “find” to return something that I can use
Change default timeout for mocha
If we have a unit test file my-spec.js and running with mocha: The default timeout will be 2000 ms. It can be overwritten for partial test with a command line parameter: Is it possible to change the default timeout globally for all tests? i.e. the default timeout value will be different from 2000 ms when you call: Answer By default
Global variables in Karma test runner
I have a global variable defined in my main template, which I use to store information bits from the back end, such as the environment context path. I can’t move that variable inside a service. How can I expose that variable to Karma when I run the unit tests? Answer You either declare that global variable within your test file: