private void invokeGetDateTimeMethod(final SimpleDateFormat format) throws ParseException {
        final Date checkpoint = new Date();
        final String formattedCheckpoint = format.format(checkpoint);
        Utils.getDateTime(formattedCheckpoint);
    }
Expectation setter for multiple reads where each one reads random bytes to the buffer.

@param channelMock           The mocked FileChannel object
@param bufferSize            The buffer size
@return Expected buffer string
@throws IOException          If an I/O error occurs
clients/src/test/java/org/apache/kafka/common/utils/UtilsTest.java