Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/1404
@zjffdu Right, it looks like AbstractTestRestApi need to be improved when
CI is not defined.
So far, i think you can try download and run spark standalone cluster in
this way
```
./testing/downloadSpark.sh 1.6.2 2.6
./testing/startSparkCluster.sh 1.6.2 2.6
```
And then try run the test cases, so `getSparkHome()` can find sparkHome.
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