Github user tnachen commented on a diff in the pull request:
https://github.com/apache/spark/pull/8771#discussion_r39583419
--- Diff:
core/src/test/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackendSuite.scala
---
@@ -184,4 +184,52 @@ class CoarseMesosSchedulerBackendSuite extends
SparkFunSuite
verify(driver, times(1)).reviveOffers()
}
+
+ test("testing various isOfferValidForScheduling cases") {
+ val sparkConf = (new SparkConf)
+ .setMaster("local[*]")
+ .setAppName("test-mesos-dynamic-alloc")
+ .setSparkHome("/path")
+ .set("spark.cores.max", "10")
+
+ val sc = new SparkContext(sparkConf)
+
+ val driver = mock[SchedulerDriver]
+ when(driver.start()).thenReturn(Protos.Status.DRIVER_RUNNING)
+ val taskScheduler = mock[TaskSchedulerImpl]
+ when(taskScheduler.sc).thenReturn(sc)
+
+
+ val schedulerBackend = createSchedulerBackend(taskScheduler, driver,
sc)
+
+ // Return true when there is a valid offer
+ assert(schedulerBackend.isOfferValidForScheduling(true, "Slave1",
10000, 5, sc))
+
+ schedulerBackend.slaveIdsWithExecutors += "Slave2"
+ schedulerBackend.failuresBySlaveId("Slave3") = 2
+ schedulerBackend.totalCoresAcquired = 5
+
+ // Return false When offer do not meet constraints
+ assert(schedulerBackend.isOfferValidForScheduling(false, "Slave1",
10000, 5, sc) === false)
+
+ // Return false When memory in offer is less than required memory
+ assert(schedulerBackend.isOfferValidForScheduling(true, "Slave1", 1,
5, sc) === false)
+
+ // Return false When cpu in offer is less than required cpu
+ assert(schedulerBackend.isOfferValidForScheduling(true, "Slave1",
10000, 0, sc) === false)
+
--- End diff --
I think we can remove the spaces here
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