Function ensureMock

packages/expect/src/spyMatchers.ts:1282–1297

(
  received: any,
  matcherName: string,
  expectedArgument: string,
  options: MatcherHintOptions,
)

};

const ensureMock = (
  received: any,
  matcherName: string,
  expectedArgument: string,
  options: MatcherHintOptions,
) => {
  if (!isMock(received)) {
    throw new Error(
      matcherErrorMessage(
        matcherHint(matcherName, undefined, expectedArgument, options),
        `${RECEIVED_COLOR('received')} value must be a mock function`,
        printWithType('Received', received, printReceived),
      ),
    );
  }
};

export default spyMatchers;