Function stringMatching

expect.stringMatching() matches a received string that in turn matches the expected pattern. Use this method inside expect(value).toEqual(expected) to perform pattern matching.

Usage

expect('123ms').toEqual(expect.stringMatching(/\d+m?s/));

// Inside another matcher.
expect({
  status: 'passed',
  time: '123ms',
}).toEqual({
  status: expect.stringMatching(/passed|failed/),
  time: expect.stringMatching(/\d+m?s/),
});
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