docs: mock timers in example

[aditya04848]

while running tests/infiniteTimerGame-test.js, i got following error:

expect(received).toHaveBeenCalledTimes(expected)

Matcher error: received value must be a mock or spy function

Received has type:  function
Received has value: [Function setTimeout]

  12 |     // At this point in time, there should have been a single call to
  13 |     // setTimeout to schedule the end of the game in 1 second.
> 14 |     expect(setTimeout).toHaveBeenCalledTimes(1);
     |                        ^
  15 |     expect(setTimeout).toHaveBeenLastCalledWith(expect.any(Function), 1000);

so i added, jest.spyOn(global, 'setTimeout');

Summary

Test plan

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[SimenB]

good catch! Can you update the other v27 docs as well (plus the one in docs/)? This is a change in Jest v27 which uses modern timers 🙂

[codecov-commenter]

Codecov Report

Merging #12385 (2f3198f) into main (c961be9) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main   #12385   +/-   ##
=======================================
  Coverage   68.48%   68.48%           
=======================================
  Files         324      324           
  Lines       16969    16969           
  Branches     5061     5061           
=======================================
  Hits        11622    11622           
  Misses       5315     5315           
  Partials       32       32           

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[SimenB]

@aditya04848 hey! I updated this, but in order to merge you need to sign the CLA. Could you do so? 🙂

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Thank you for signing our Contributor License Agreement. We can now accept your code for this (and any) Meta Open Source project. Thanks!

[SimenB]

Thanks!

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