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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