[英]Jest function toHaveBeenCalledWith to ignore object order
Im testing with what arguments a function was called but its not passing because the order of properties inside an object, like:我用什么参数测试了一个函数被调用但它没有通过,因为对象内部的属性顺序,比如:
const obj = {
name: 'Bla',
infos: {
info1: '1',
info2: '2'
}
}
expect(function).toHaveBeenCalledWith(obj)
The error says that was called like this: { name: 'bla', infos: {info2: '2', info1: '1'} }错误说是这样调用的:{ name: 'bla', infos: {info2: '2', info1: '1'} }
I changed orders but didn't work.我更改了订单但没有用。
You could follow a similar approach to this SO answer .您可以对这个 SO answer遵循类似的方法。
Example:例子:
// Assuming some mock setup like this...
const mockFuncton = jest.fn();
const expectedObj = {
name: 'Bla',
infos: {
info1: '1',
info2: '2'
}
}
// Perform operation(s) being tested...
// Expect the function to have been called at least once
expect(mockFuncton).toHaveBeenCalled();
// Get the 1st argument from the mock function call
const functionArg = mockFuncton.mock.calls[0][0];
// Expect that argument matches the expected object
expect(functionArg).toMatchObject(expectedObj);
// Comparison using toEqual() instead which might be a better approach for your usecase
expect(functionArg).toEqual(expectedObj);
it('does not care on properties ordering', () => {
const a = jest.fn();
a({ a: 1, b: 2, c: {d1: 1, d2: 2} });
expect(a).toHaveBeenCalledWith({c: {d2: 2, d1: 1}, b: 2, a: 1});
});
passes for me with Jest 24.9.0用 Jest 24.9.0 传给我
Under the hood , Jest applies "isEqual" check, not referential check在引擎盖下,Jest 应用“isEqual”检查,而不是引用检查
But we cannot check for functions equality this way.但是我们不能以这种方式检查函数是否相等。 Also partial matching will need custom matcher.
部分匹配也需要自定义匹配器。
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