Mocking per test case with Jest /1

test.js

jest.mock("MyOtherComponent", () => {
  return require
    .requireActual("TestUtils")
    .mockOriginalFunctionality("MyOtherComponent");
});

describe("<Component />", () => {
  it("works", () => {
    // MyOtherComponent works as usual
  }):

  describe("when something silly happens", () => {
    beforeEach(() => {
      MyOtherComponent.someFunction.mockImplementationOnce(() => {
        throw new Error("oops");
      });
    });

    it("displays error", () => {
      // MyOtherComponent.someFunction throws
    }):
  });
    
  it("still works", () => {
    // MyOtherComponent works as usual again
  }):
});