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From tillrohrmann <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-2613] Print usage information for Scala...
Date Thu, 01 Oct 2015 09:13:22 GMT
Github user tillrohrmann commented on a diff in the pull request:

    https://github.com/apache/flink/pull/1106#discussion_r40893139
  
    --- Diff: flink-staging/flink-scala-shell/src/test/scala/org/apache/flink/api/scala/ScalaShellITSuite.scala
---
    @@ -225,6 +220,51 @@ class ScalaShellITSuite extends FunSuite with Matchers with BeforeAndAfterAll
{
         out.toString + stdout
       }
     
    +  /**
    +   * tests flink shell startup with remote cluster (starts cluster internally)
    +   */
    +  test("start flink scala shell with remote cluster") {
    +
    +    val input: String = "val els = env.fromElements(\"a\",\"b\");\n" +
    +      "els.print\nError\n:q\n"
    +
    +    val in: BufferedReader = new BufferedReader(
    +      new StringReader(
    +        input + "\n"))
    +    val out: StringWriter = new StringWriter
    +
    +    val baos: ByteArrayOutputStream = new ByteArrayOutputStream
    +    val oldOut: PrintStream = System.out
    +    System.setOut(new PrintStream(baos))
    +    val c = cluster.getOrElse(null)
    +    var args : Array[String] = null
    +    if (c != null) {
    +      args = Array("remote",
    +        c.hostname,
    +        Integer.toString(c.getLeaderRPCPort))
    +    } else {
    +      fail("Cluster creation failed!")
    +    }
    +
    +    //start scala shell with initialized
    +    // buffered reader for testing
    +    FlinkShell.bufferedReader = in
    +    FlinkShell.main(args)
    +    baos.flush
    +
    +    val output: String = baos.toString
    +    System.setOut(oldOut)
    +
    +    output should include("Job execution switched to status FINISHED.")
    +    output should include("a\nb")
    +
    +    output should not include "Error"
    +    output should not include "ERROR"
    +    output should not include "Exception"
    +    output should not include "failed"
    +  }
    +
    +
       var cluster: Option[ForkableFlinkMiniCluster] = None
       val parallelism = 4
    --- End diff --
    
    Can we move the class field to the top of the class definition? 


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