offline2.test.ts

it("should test `onUserCreate`", async () => {
  const wrapped = testEnv.wrap(api.onUserCreate);
  const testUser = {
    uid: "122",
    displayName: "lee"
  };

  await wrapped(testUser);

  // generate user returns newUser object below
  /*
    const newUser = {
      uid,
      displayName,
      points: 0,
      questType: "view", // enum { view, sub }
      questGoal: 30,
      questActual: 10,
      // valid for next 24 hours
      questValidUntil: Date.now() + dayInMs
    };
  */
  const newUser = generateNewUser(testUser);

  // check our db set function is called with expected parameter
  expect(admin.database().ref(`/users/${testUser.uid}`).set).toBeCalledWith(newUser);

  // check it returns mocked value as expected
  expect(wrapped(testUser)).toBe(true);
});