Kalimaha · December 16, 2020 02:15
diff --git a/eggs.test.ts b/eggs.test.ts
 import { eggs } from "../src/eggs";
 import { spam } from "../src/spam";

 describe("normal", () => {
  it("does some calculations", () => {
    expect(eggs(3)).toEqual(72);
  });
 });

 describe("mocked", () => {
  // Override `spam` to return 100

  it("does some calculations", () => {
    expect(eggs(3)).toEqual(142);
  });
 });
diff --git a/eggs.ts b/eggs.ts
 import { spam } from "./spam";

 export const eggs = (a: number) => 42 + spam(a);
diff --git a/spam.ts b/spam.ts
 export const spam = (a: number): number => 10 * a;
	import { spam } from "./spam";

	export const eggs = (a: number) => 42 + spam(a);