Codecov Report

Merging #5166 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5166      +/-   ##
==========================================
+ Coverage   60.64%   60.65%   +0.01%     
==========================================
  Files         201      201              
  Lines        6695     6695              
  Branches        4        3       -1     
==========================================
+ Hits         4060     4061       +1     
+ Misses       2634     2633       -1     
  Partials        1        1

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Good work and Merry Christmas!

@SimenB Any possibility to support generators in mockReturnValue (Resolve/Once)?
Idea would be to get a different value after each call to a jest.fn based on a generator, and without having to provide an implementation like:

      function* generator() {
        yield 1;
        yield 2;
        yield 3;
      }

      const iterator = generator();

      const fn = jest.fn().mockImplementation(() => iterator.next().value);
      expect(fn()).toEqual(1);
      expect(fn()).toEqual(2);
      expect(fn()).toEqual(3);
      expect(fn()).toEqual(undefined);

A cool handler would be a kinda:

jest.fn().mockReturnIteratedValue( generator() )

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