Function addExtraLineBreaks

packages/jest-snapshot/src/utils.ts:31–32

(string: string)

// Add extra line breaks at beginning and end of multiline snapshot
// to make the content easier to read.
export const addExtraLineBreaks = (string: string): string =>
  string.includes('\n') ? `\n${string}\n` : string;

// Remove extra line breaks at beginning and end of multiline snapshot.
// Instead of trim, which can remove additional newlines or spaces