Improves #1644 - Add some integration tests for /v2/eventSubscription…

…s endpoints.

src/test/scala/mesosphere/marathon/integration/EventSubscribersIntegrationTest.scala

@@ -0,0 +1,41 @@
+package mesosphere.marathon.integration
+
+import mesosphere.marathon.integration.setup.{ IntegrationFunSuite, SingleMarathonIntegrationTest }
+import org.scalatest._
+
+class EventSubscribersIntegrationTest
+    extends IntegrationFunSuite
+    with SingleMarathonIntegrationTest
+    with Matchers
+    with BeforeAndAfter
+    with GivenWhenThen {
+
+  before(cleanUp())
+
+  test("adding an event subscriber") {
+    When("an event subscriber is added")
+    marathon.subscribe("http://foobar.com:1337").code should be(200)
+
+    Then("a notification should be sent to all the subscribers")
+    waitForEvent("subscribe_event").info should contain("callbackUrl" -> "http://foobar.com:1337")
+
+    And("the subscriber should show up in the list of subscribers")
+    marathon.listSubscribers.value.urls should contain("http://foobar.com:1337")
+
+    // Cleanup
+    marathon.unsubscribe("http://foobar.com:1337")
+  }
+
+  test("removing an event subscriber") {
+    When("an event subscriber is removed")
+    marathon.subscribe("http://foobar.com:1337").code should be(200)
+    marathon.listSubscribers.value.urls should contain("http://foobar.com:1337")
+    marathon.unsubscribe("http://foobar.com:1337").code should be(200)
+
+    Then("a notification should be sent to all the subscribers")
+    waitForEvent("unsubscribe_event").info should contain("callbackUrl" -> "http://foobar.com:1337")
+
+    And("the subscriber should not show up in the list of subscribers")
+    marathon.listSubscribers.value.urls shouldNot contain("http://foobar.com:1337")
+  }
+}