test: add test cases for echo plugin (#336)

test/e2e/plugins/echo.go

@@ -0,0 +1,167 @@
+// Licensed to the Apache Software Foundation (ASF) under one or more
+// contributor license agreements.  See the NOTICE file distributed with
+// this work for additional information regarding copyright ownership.
+// The ASF licenses this file to You 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 plugins
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/apache/apisix-ingress-controller/test/e2e/scaffold"
+	"github.com/onsi/ginkgo"
+	"github.com/stretchr/testify/assert"
+)
+
+var _ = ginkgo.Describe("echo plugin", func() {
+	opts := &scaffold.Options{
+		Name:                    "default",
+		Kubeconfig:              scaffold.GetKubeconfig(),
+		APISIXConfigPath:        "testdata/apisix-gw-config.yaml",
+		APISIXDefaultConfigPath: "testdata/apisix-gw-config-default.yaml",
+		IngressAPISIXReplicas:   1,
+		HTTPBinServicePort:      80,
+		APISIXRouteVersion:      "apisix.apache.org/v2alpha1",
+	}
+	s := scaffold.NewScaffold(opts)
+	ginkgo.It("insert preface and epilogue", func() {
+		backendSvc, backendPorts := s.DefaultHTTPBackend()
+		ar := fmt.Sprintf(`
+apiVersion: apisix.apache.org/v2alpha1
+kind: ApisixRoute
+metadata:
+ name: httpbin-route
+spec:
+ http:
+ - name: rule1
+   match:
+     hosts:
+     - httpbin.org
+     paths:
+       - /ip
+   backends:
+   - serviceName: %s
+     servicePort: %d
+     weight: 10
+   plugins:
+   - name: echo
+     enable: true
+     config:
+       before_body: "This is the preface"
+       after_body: "This is the epilogue"
+       headers:
+         X-Foo: v1
+         X-Foo2: v2
+       
+`, backendSvc, backendPorts[0])
+
+		assert.Nil(ginkgo.GinkgoT(), s.CreateResourceFromString(ar))
+
+		err := s.EnsureNumApisixUpstreamsCreated(1)
+		assert.Nil(ginkgo.GinkgoT(), err, "Checking number of upstreams")
+		err = s.EnsureNumApisixRoutesCreated(1)
+		assert.Nil(ginkgo.GinkgoT(), err, "Checking number of routes")
+
+		resp := s.NewAPISIXClient().GET("/ip").WithHeader("Host", "httpbin.org").Expect()
+		resp.Status(http.StatusOK)
+		resp.Header("X-Foo").Equal("v1")
+		resp.Header("X-Foo2").Equal("v2")
+		resp.Body().Contains("This is the preface")
+		resp.Body().Contains("origin")
+		resp.Body().Contains("This is the epilogue")
+	})
+
+	ginkgo.It("replace body", func() {
+		backendSvc, backendPorts := s.DefaultHTTPBackend()
+		ar := fmt.Sprintf(`
+apiVersion: apisix.apache.org/v2alpha1
+kind: ApisixRoute
+metadata:
+ name: httpbin-route
+spec:
+ http:
+ - name: rule1
+   match:
+     hosts:
+     - httpbin.org
+     paths:
+       - /ip
+   backends:
+   - serviceName: %s
+     servicePort: %d
+     weight: 10
+   plugins:
+   - name: echo
+     enable: true
+     config:
+       body: "my custom body"
+       
+`, backendSvc, backendPorts[0])
+
+		assert.Nil(ginkgo.GinkgoT(), s.CreateResourceFromString(ar))
+
+		err := s.EnsureNumApisixUpstreamsCreated(1)
+		assert.Nil(ginkgo.GinkgoT(), err, "Checking number of upstreams")
+		err = s.EnsureNumApisixRoutesCreated(1)
+		assert.Nil(ginkgo.GinkgoT(), err, "Checking number of routes")
+
+		resp := s.NewAPISIXClient().GET("/ip").WithHeader("Host", "httpbin.org").Expect()
+		resp.Status(http.StatusOK)
+		resp.Body().Equal("my custom body")
+	})
+
+	ginkgo.It("auth", func() {
+		backendSvc, backendPorts := s.DefaultHTTPBackend()
+		ar := fmt.Sprintf(`
+apiVersion: apisix.apache.org/v2alpha1
+kind: ApisixRoute
+metadata:
+ name: httpbin-route
+spec:
+ http:
+ - name: rule1
+   match:
+     hosts:
+     - httpbin.org
+     paths:
+       - /ip
+   backends:
+   - serviceName: %s
+     servicePort: %d
+     weight: 10
+   plugins:
+   - name: echo
+     enable: true
+     config:
+       body: "my custom body"
+       auth_value: "Basic cmVkaXM6MTIzNDU2"
+       
+`, backendSvc, backendPorts[0])
+
+		assert.Nil(ginkgo.GinkgoT(), s.CreateResourceFromString(ar))
+
+		err := s.EnsureNumApisixUpstreamsCreated(1)
+		assert.Nil(ginkgo.GinkgoT(), err, "Checking number of upstreams")
+		err = s.EnsureNumApisixRoutesCreated(1)
+		assert.Nil(ginkgo.GinkgoT(), err, "Checking number of routes")
+
+		resp := s.NewAPISIXClient().GET("/ip").WithHeader("Host", "httpbin.org").Expect()
+		resp.Status(http.StatusUnauthorized)
+
+		resp = s.NewAPISIXClient().GET("/ip").WithHeader("Host", "httpbin.org").
+			WithHeader("Authorization", "Basic cmVkaXM6MTIzNDU2").
+			Expect()
+		resp.Status(http.StatusOK)
+		resp.Body().Equal("my custom body")
+	})
+})