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Jest · Pipe

moduleNameMapper

moduleNameMapper redirects matching module paths to replacement modules or files. It is commonly used for resource stubs and import aliases.

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Syntax

moduleNameMapper: { '<regular-expression>': '<module-name-or-path>' }

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  • rootDir
  • moduleDirectories
  • automock
  • setupFiles

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