Function assertMatcherHint

packages/jest-jasmine2/src/assertionErrorMessage.ts:65–89

(
  operator: string | null,
  operatorName: string,
  expected: unknown,
)

    : '';

const assertMatcherHint = (
  operator: string | null,
  operatorName: string,
  expected: unknown,
) => {
  let message = '';

  if (operator === '==' && expected === true) {
    message =
      chalk.dim('assert') +
      chalk.dim('(') +
      chalk.red('received') +
      chalk.dim(')');
  } else if (operatorName) {
    message =
      chalk.dim('assert') +
      chalk.dim(`.${operatorName}(`) +
      chalk.red('received') +
      chalk.dim(', ') +
      chalk.green('expected') +
      chalk.dim(')');
  }

  return message;
};

function assertionErrorMessage(
  error: AssertionErrorWithStack,