Restructure load balance e2e tests and update round robin test

test/e2e/settings/load_balance.go

@@ -1,83 +0,0 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package settings
-
-import (
-	"net/http"
-	"regexp"
-	"strings"
-	"time"
-
-	"github.com/parnurzeal/gorequest"
-
-	. "github.com/onsi/ginkgo"
-	. "github.com/onsi/gomega"
-
-	"k8s.io/ingress-nginx/test/e2e/framework"
-)
-
-var _ = framework.IngressNginxDescribe("Load Balance", func() {
-	f := framework.NewDefaultFramework("load-balance")
-
-	setting := "load-balance"
-
-	BeforeEach(func() {
-		f.NewEchoDeploymentWithReplicas(3)
-	})
-
-	AfterEach(func() {
-		f.UpdateNginxConfigMapData(setting, "")
-
-	})
-
-	It("should evenly distribute requests with round-robin (default algorithm)", func() {
-		host := "load-balance.com"
-
-		f.EnsureIngress(framework.NewSingleIngress(host, "/", host, f.IngressController.Namespace, "http-svc", 80, nil))
-
-		f.WaitForNginxServer(host,
-			func(server string) bool {
-				return strings.Contains(server, "server_name load-balance.com")
-			})
-
-		re, _ := regexp.Compile(`http-svc.*`)
-		replicaRequestCount := map[string]int{}
-
-		for i := 0; i < 600; i++ {
-			_, body, errs := gorequest.New().
-				Get(f.IngressController.HTTPURL).
-				Set("Host", host).
-				Retry(10, 1*time.Second, http.StatusNotFound, http.StatusServiceUnavailable).
-				End()
-			Expect(len(errs)).Should(BeNumerically("==", 0))
-
-			replica := re.FindString(body)
-			Expect(replica).ShouldNot(Equal(""))
-
-			if _, ok := replicaRequestCount[replica]; !ok {
-				replicaRequestCount[replica] = 1
-			} else {
-				replicaRequestCount[replica]++
-			}
-		}
-
-		acceptableRequestRange := []int{198, 199, 200, 201, 202}
-		for _, v := range replicaRequestCount {
-			Expect(acceptableRequestRange).Should(ContainElement(v))
-		}
-	})
-})