Function getRightAlignedPrinter

packages/expect/src/spyMatchers.ts:96–107

(label: string)

// Given a label, return a function which given a string,
// right-aligns it preceding the colon in the label.
const getRightAlignedPrinter = (label: string): PrintLabel => {
  // Assume that the label contains a colon.
  const index = label.indexOf(':');
  const suffix = label.slice(index);

  return (string: string, isExpectedCall: boolean) =>
    (isExpectedCall
      ? `->${' '.repeat(Math.max(0, index - 2 - string.length))}`
      : ' '.repeat(Math.max(index - string.length))) +
    string +
    suffix;
};

type IndexedCall = [number, Array<unknown>];