public void setCurrentStreamTimeMs(final long currentStreamTimeMs) {
        this.currentStreamTimeMs = currentStreamTimeMs;
    }
The context exposes this metadata for use in the processor. Normally, they are set by the Kafka Streams framework,
but for the purpose of driving unit tests, you can set it directly. Setting this attribute doesn't affect the others.

@param recordTimestamp A record timestamp
streams/test-utils/src/main/java/org/apache/kafka/streams/processor/MockProcessorContext.java