Added basic limit-rate configmap test.

test/e2e/settings/limit_rate.go

@@ -0,0 +1,62 @@
+/*
+Copyright 2020 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 (
+	"fmt"
+	"strings"
+
+	"github.com/onsi/ginkgo"
+
+	"k8s.io/ingress-nginx/test/e2e/framework"
+)
+
+var _ = framework.DescribeSetting("Configmap - limit-rate", func() {
+	f := framework.NewDefaultFramework("limit-rate")
+	host := "limit-rate"
+
+	ginkgo.BeforeEach(func() {
+		f.NewEchoDeployment()
+	})
+
+	ginkgo.It("Check limit-rate config", func() {
+		annotation := make(map[string]string)
+		annotation["nginx.ingress.kubernetes.io/proxy-buffering"] = "on"
+
+		ing := framework.NewSingleIngress(host, "/", host, f.Namespace, framework.EchoService, 80, annotation)
+		f.EnsureIngress(ing)
+
+		f.WaitForNginxServer(host, func(server string) bool {
+			return strings.Contains(server, fmt.Sprintf("server_name %s ;", host))
+		})
+
+		wlKey := "limit-rate"
+		wlValue := "1"
+		f.UpdateNginxConfigMapData(wlKey, wlValue)
+
+		f.WaitForNginxConfiguration(func(server string) bool {
+			return strings.Contains(server, fmt.Sprintf("limit_rate %sk;", wlValue))
+		})
+
+		wlValue = "90"
+		f.UpdateNginxConfigMapData(wlKey, wlValue)
+
+		f.WaitForNginxConfiguration(func(server string) bool {
+			return strings.Contains(server, fmt.Sprintf("limit_rate %sk;", wlValue))
+		})
+	})
+})