jest mock methods code example
Example 1: how to mock a library in jest
import randomColor from "randomcolor";
jest.mock("randomColor", () => {
return {
randomColor: () => {
return mockColor('#123456');
}
}
});
let mockColor = jest.fn();
Example 2: jest mock call
test("mock.calls", () => {
const mockFn = jest.fn();
mockFn(1, 2);
expect(mockFn.mock.calls).toEqual([[1, 2]]);
});