very basic regression test to make sure appId doesnt get dropped in future

core/src/test/scala/org/apache/spark/deploy/worker/ExecutorRunnerTest.scala

+package org.apache.spark.deploy.worker
+
+import org.scalatest.FunSuite
+import org.apache.spark.deploy.{ExecutorState, Command, ApplicationDescription}
+import java.io.File
+
+class ExecutorRunnerTest extends FunSuite {
+
+  test("command includes appId") {
+    def f(s:String) = new File(s)
+    val sparkHome = sys.props("user.dir")
+    val appDesc = new ApplicationDescription("app name", 8, 500, Command("foo", Seq(),Map()), sparkHome, "appUiUrl")
+    val appId = "12345-worker321-9876"
+    val er = new ExecutorRunner(appId, 1, appDesc, 8, 500, null, "blah", "worker321", f(sparkHome), f("ooga"), ExecutorState.RUNNING)
+
+    assert(er.buildCommandSeq().last === appId)
+  }
+}