Sinon vs Jest spy function

Creating spies

sinon

const spy = sinon.spy();

Jest

const spy = jest.fn();

Check if spy is called

sinon

spy.mock.calls.length; // number;

or

spy.mock.calls.length; // number;

Jest

expect(spy).toHaveBeenCalled();

Check call count

sinon

spy.calledOnce; // boolean
spy.calledTwice; // boolean
spy.calledThrice; // boolean
spy.callCount; // number

Jest

spy.mock.calls.length; // number;

Checking arguments

sinon

// args[callIndex][argIndex]
spy.args[0][0];

// spy.calledWith(...args)
spy.calledWith('Age', 23)

Jest

// mock.calls[call][argIdx]
spy.mock.calls[0][0];

expect(spy).toHaveBeenCalledWith(1, 'Hey');
expect(spy).toHaveBeenLastCalledWith(1, 'Hey');

// expect(spy).toHaveBeenCalledWith(argumentCondition);

expect(spy).toHaveBeenCalledWith(expect.anything());
expect(spy).toHaveBeenCalledWith(expect.any(constructor));
expect(spy).toHaveBeenCalledWith(expect.arrayContaining([ values ]));
expect(spy).toHaveBeenCalledWith(expect.objectContaining({ props }));
expect(spy).toHaveBeenCalledWith(expect.stringContaining(string));
expect(spy).toHaveBeenCalledWith(expect.stringMatching(regexp));