Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/247#discussion_r11358984
--- Diff:
streaming/src/test/scala/org/apache/spark/streaming/StreamingContextSuite.scala
---
@@ -133,18 +147,61 @@ class StreamingContextSuite extends FunSuite with
BeforeAndAfter with Timeouts {
ssc.start()
ssc.stop()
ssc.stop()
- ssc = null
}
+ test("stop before start and start after stop") {
+ ssc = new StreamingContext(master, appName, batchDuration)
+ addInputStream(ssc).register
+ ssc.stop() // stop before start should not throw exception
+ ssc.start()
+ ssc.stop()
+ intercept[SparkException] {
+ ssc.start() // start after stop should throw exception
+ }
+ }
+
+
test("stop only streaming context") {
ssc = new StreamingContext(master, appName, batchDuration)
sc = ssc.sparkContext
addInputStream(ssc).register
ssc.start()
ssc.stop(false)
- ssc = null
assert(sc.makeRDD(1 to 100).collect().size === 100)
ssc = new StreamingContext(sc, batchDuration)
+ addInputStream(ssc).register
+ ssc.start()
+ ssc.stop()
+ }
+
+ test("stop gracefully") {
--- End diff --
doing it.
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