Move packages to proejct/pkg to follow go project folder structure convention (#1190)

pkg/router/functionHandler_test.go

@@ -0,0 +1,93 @@
+/*
+Copyright 2016 The Fission 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 router
+
+import (
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+	"time"
+
+	"go.uber.org/zap"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	fv1 "github.com/fission/fission/pkg/apis/fission.io/v1"
+	"github.com/fission/fission/pkg/types"
+)
+
+func createBackendService(testResponseString string) *url.URL {
+	backendServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(testResponseString))
+	}))
+
+	backendURL, err := url.Parse(backendServer.URL)
+	if err != nil {
+		panic("error parsing url")
+	}
+	return backendURL
+}
+
+/*
+   1. Create a service at some URL
+   2. Add it to the function service map
+   3. Create a http server with some trigger url pointed at function handler
+   4. Send a request to that server, ensure it reaches the first service.
+*/
+func TestFunctionProxying(t *testing.T) {
+	testResponseString := "hi"
+	backendURL := createBackendService(testResponseString)
+	log.Printf("Created backend svc at %v", backendURL)
+
+	fn := &metav1.ObjectMeta{Name: "foo", Namespace: metav1.NamespaceDefault}
+	logger, err := zap.NewDevelopment()
+	panicIf(err)
+
+	fmap := makeFunctionServiceMap(logger, 0)
+	fmap.assign(fn, backendURL)
+
+	httpTrigger := &fv1.HTTPTrigger{
+		Metadata: metav1.ObjectMeta{
+			Name:            "xxx",
+			Namespace:       metav1.NamespaceDefault,
+			ResourceVersion: "1234",
+		},
+		Spec: fv1.HTTPTriggerSpec{
+			FunctionReference: fv1.FunctionReference{
+				Type: types.FunctionReferenceTypeFunctionName,
+			},
+		},
+	}
+
+	fh := &functionHandler{
+		logger:   logger,
+		fmap:     fmap,
+		function: fn,
+		tsRoundTripperParams: &tsRoundTripperParams{
+			timeout:         50 * time.Millisecond,
+			timeoutExponent: 2,
+			keepAlive:       30 * time.Second,
+			maxRetries:      10,
+		},
+		httpTrigger: httpTrigger,
+	}
+	functionHandlerServer := httptest.NewServer(http.HandlerFunc(fh.handler))
+	fhURL := functionHandlerServer.URL
+
+	testRequest(fhURL, testResponseString)
+}