event.target don't provide properties as name, id, type. Just the property "value"

Kata should update to allow new syntaxes and commands including useState and useRef. (currently they cannot be used)

why such old version of react? useState is not defined in React.

Different functions are mocked in the sample and actual tests, in sample tests global.setInterval is mocked while in the actual tests setInterval is mocked. They're different.

The entirety of this custom fetch function is illegal: it doesn't obey the standards of window.fetch, which should return a response object that requires .json() to read.

And why reading .json file returns text as a string?

Wasn't it said that the id should be set to 'priority'?

There is 'select' id instead of 'priority' in the last test.

It is lead to "event.target.id === 'select' ? 'priority' : event.target.id" construction.

It's an issue. You forgot to add name:'name' here: .simulate("change", { target: { value: "Peter" } });

It should be: .simulate("change", { name:'name', target: { value: "Peter" } });

The test description is wrong:

creates a timer and stores a reference to it as a class property `this.timeId`

the actual testcase tested the class property this.timerId. Notice timer vs time.

Got me stuck for a long time...