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https://issues.apache.org/jira/browse/SPARK-20936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zuotingbing updated SPARK-20936:
--------------------------------
    Description: 
1.  add `assert(resolve(before) === after)` to check before and after in test 
of resolveURI.
     the function `assertResolves(before: String, after: String)` have two 
params, it means we should check the before value whether equals the after 
value which we want.
     e.g. the after value of 
Utils.resolveURI("hdfs:///root/spark.jar#app.jar").toString should be 
"hdfs:///root/spark.jar#app.jar" rather than "hdfs:/root/spark.jar#app.jar". we 
need `assert(resolve(before) === after)` to make it more safe.
2. identify the cases between resolveURI and resolveURIs.
3. delete duplicate cases and some small fix make this suit more clear.

  was:
Lack of an important case about the test of resolveURI in UtilsSuite, and add 
it as needed.
i suggest add "assert(resolve(before) === after)" to check before and after.


> Lack of an important case about the test of resolveURI
> ------------------------------------------------------
>
>                 Key: SPARK-20936
>                 URL: https://issues.apache.org/jira/browse/SPARK-20936
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.1.1
>            Reporter: zuotingbing
>            Priority: Minor
>
> 1.  add `assert(resolve(before) === after)` to check before and after in test 
> of resolveURI.
>      the function `assertResolves(before: String, after: String)` have two 
> params, it means we should check the before value whether equals the after 
> value which we want.
>      e.g. the after value of 
> Utils.resolveURI("hdfs:///root/spark.jar#app.jar").toString should be 
> "hdfs:///root/spark.jar#app.jar" rather than "hdfs:/root/spark.jar#app.jar". 
> we need `assert(resolve(before) === after)` to make it more safe.
> 2. identify the cases between resolveURI and resolveURIs.
> 3. delete duplicate cases and some small fix make this suit more clear.



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