[jira] [Assigned] (FLINK-7070) Rework ScalaShellITCase#testSubmissionOfExternalLibraryStream

["Chesnay Schepler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-7070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chesnay Schepler reassigned FLINK-7070:
---------------------------------------

    Assignee: Aljoscha Krettek

> Rework ScalaShellITCase#testSubmissionOfExternalLibraryStream
> -------------------------------------------------------------
>
>                 Key: FLINK-7070
>                 URL: https://issues.apache.org/jira/browse/FLINK-7070
>             Project: Flink
>          Issue Type: Improvement
>          Components: Scala Shell, Tests
>    Affects Versions: 1.4.0
>            Reporter: Chesnay Schepler
>            Assignee: Aljoscha Krettek
>            Priority: Critical
>             Fix For: 1.4.0
>
>
> The {{ScalaShellITCase}} makes use of flink-ml jar in one of it's tests. Since flink-ml is not even declared as a dependency the test only works because by coincidence flink-ml is build before flink-scala-shell.
> {code}
>   @Test
>   def testSubmissionOfExternalLibraryBatch: Unit = {
>   ...
>   val folder = findLibraryFolder(
>     "../flink-libraries/flink-ml/target/",
>     "../../flink-libraries/flink-ml/target/")
>   ...
>   }
>   def findLibraryFolder(paths: String*): File = {
>     for (path <- paths) {
>       val folder = new File(path)
>       if (folder.exists()) {
>         return folder
>       }
>     }
>     throw new RuntimeException("Library folder not found in any of the supplied paths!")
>   }
> {code}
> At the very least we should declare the dependency, or even better rework this test to rely on a custom jar built in flink-scala-shell to reduce dependencies.
> Also, the exception message in {{findLibraryFolder}} should contain the folder it couldn't find.



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