Introducing temporary errors. Refactored reestablish connection code … (#50)

* Introducing temporary errors. 

* Refactored reestablish connection code to use NewClient.

* Added reestablish connection test to end to end tests.

realis_e2e_test.go

@@ -36,14 +36,14 @@ func TestMain(m *testing.M) {
 	// New configuration to connect to Vagrant image
 	r, err = realis.NewRealisClient(realis.SchedulerUrl("http://192.168.33.7:8081"),
 		realis.BasicAuth("aurora", "secret"),
-		realis.ThriftJSON(),
-		realis.TimeoutMS(20000),
-		realis.BackOff(&realis.Backoff{Steps: 2, Duration: 10 * time.Second, Factor: 2.0, Jitter: 0.1}))
+		realis.TimeoutMS(20000))
 	if err != nil {
 		fmt.Println("Please run vagrant box before running test suite")
 		os.Exit(1)
 	}
 
+	defer r.Close()
+
 	// Create monitor
 	monitor = &realis.Monitor{Client: r}
 
@@ -64,6 +64,14 @@ func TestLeaderFromZK(t *testing.T) {
 	assert.Equal(t, "http://aurora.local:8081", url)
 }
 
+func TestRealisClient_ReestablishConn(t *testing.T) {
+
+	// Test that we're able to tear down the old connection and create a new one.
+	err := r.ReestablishConn()
+
+	assert.NoError(t, err)
+}
+
 func TestGetCacerts(t *testing.T) {
 	certs, err := realis.Getcerts("./examples/certs")
 	assert.NoError(t, err)