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Jest · Module

stringContaining

expect.stringContaining checks that a received string contains an exact substring. It can be nested inside several Jest assertions and asymmetric matchers.

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Syntax

expect.stringContaining(string)

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  • expect.not.stringContaining
  • expect.stringMatching
  • expect.arrayContaining
  • expect.objectContaining
  • toEqual
  • toHaveBeenCalledWith

Source: Expect · Jest. Checked 2026-11-03.