xds_client_outlier_detection_test.go

/*
 *
 * Copyright 2022 gRPC 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 xds_test

import (
	"context"
	"fmt"
	"testing"

	"google.golang.org/grpc"
	"google.golang.org/grpc/credentials/insecure"
	"google.golang.org/grpc/internal"
	"google.golang.org/grpc/internal/envconfig"
	"google.golang.org/grpc/internal/testutils/xds/e2e"

	testgrpc "google.golang.org/grpc/test/grpc_testing"
	testpb "google.golang.org/grpc/test/grpc_testing"
)

func (s) TestOutlierDetection(t *testing.T) {
	oldOD := envconfig.XDSOutlierDetection
	envconfig.XDSOutlierDetection = true
	internal.RegisterOutlierDetectionBalancerForTesting()
	defer func() {
		envconfig.XDSOutlierDetection = oldOD
		internal.UnregisterOutlierDetectionBalancerForTesting()
	}()

	managementServer, nodeID, _, resolver, cleanup1 := e2e.SetupManagementServer(t)
	defer cleanup1()

	port, cleanup2 := startTestService(t, nil)
	defer cleanup2()

	const serviceName = "my-service-client-side-xds"
	resources := e2e.DefaultClientResources(e2e.ResourceParams{
		DialTarget: serviceName,
		NodeID:     nodeID,
		Host:       "localhost",
		Port:       port,
		SecLevel:   e2e.SecurityLevelNone,
	})
	ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
	defer cancel()
	if err := managementServer.Update(ctx, resources); err != nil {
		t.Fatal(err)
	}

	// Create a ClientConn and make a successful RPC.
	cc, err := grpc.Dial(fmt.Sprintf("xds:///%s", serviceName), grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithResolvers(resolver))
	if err != nil {
		t.Fatalf("failed to dial local test server: %v", err)
	}
	defer cc.Close()

	client := testgrpc.NewTestServiceClient(cc)
	if _, err := client.EmptyCall(ctx, &testpb.Empty{}, grpc.WaitForReady(true)); err != nil {
		t.Fatalf("rpc EmptyCall() failed: %v", err)
	}
}