mirror of
https://github.com/octoleo/restic.git
synced 2024-11-19 11:35:14 +00:00
708 lines
19 KiB
Go
708 lines
19 KiB
Go
// Copyright 2017 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package profiler
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import (
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"bytes"
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"compress/gzip"
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"errors"
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"fmt"
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"io"
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"log"
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"math/rand"
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"os"
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"strings"
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"testing"
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"time"
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"cloud.google.com/go/internal/testutil"
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"cloud.google.com/go/profiler/mocks"
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"github.com/golang/mock/gomock"
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"github.com/golang/protobuf/proto"
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"github.com/golang/protobuf/ptypes"
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"github.com/google/pprof/profile"
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gax "github.com/googleapis/gax-go"
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"golang.org/x/net/context"
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gtransport "google.golang.org/api/transport/grpc"
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pb "google.golang.org/genproto/googleapis/devtools/cloudprofiler/v2"
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edpb "google.golang.org/genproto/googleapis/rpc/errdetails"
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"google.golang.org/grpc/codes"
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grpcmd "google.golang.org/grpc/metadata"
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"google.golang.org/grpc/status"
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)
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const (
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testProjectID = "test-project-ID"
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testInstance = "test-instance"
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testZone = "test-zone"
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testTarget = "test-target"
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testService = "test-service"
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testSvcVersion = "test-service-version"
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testProfileDuration = time.Second * 10
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testServerTimeout = time.Second * 15
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wantFunctionName = "profilee"
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)
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func createTestDeployment() *pb.Deployment {
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labels := map[string]string{
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zoneNameLabel: testZone,
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versionLabel: testSvcVersion,
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}
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return &pb.Deployment{
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ProjectId: testProjectID,
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Target: testService,
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Labels: labels,
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}
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}
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func createTestAgent(psc pb.ProfilerServiceClient) *agent {
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return &agent{
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client: psc,
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deployment: createTestDeployment(),
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profileLabels: map[string]string{instanceLabel: testInstance},
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}
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}
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func createTrailers(dur time.Duration) map[string]string {
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b, _ := proto.Marshal(&edpb.RetryInfo{
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RetryDelay: ptypes.DurationProto(dur),
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})
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return map[string]string{
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retryInfoMetadata: string(b),
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}
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}
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func TestCreateProfile(t *testing.T) {
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ctx := context.Background()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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mpc := mocks.NewMockProfilerServiceClient(ctrl)
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a := createTestAgent(mpc)
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p := &pb.Profile{Name: "test_profile"}
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wantRequest := pb.CreateProfileRequest{
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Deployment: a.deployment,
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ProfileType: []pb.ProfileType{pb.ProfileType_CPU, pb.ProfileType_HEAP},
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}
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mpc.EXPECT().CreateProfile(ctx, gomock.Eq(&wantRequest), gomock.Any()).Times(1).Return(p, nil)
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gotP := a.createProfile(ctx)
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if !testutil.Equal(gotP, p) {
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t.Errorf("CreateProfile() got wrong profile, got %v, want %v", gotP, p)
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}
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}
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func TestProfileAndUpload(t *testing.T) {
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oldStartCPUProfile, oldStopCPUProfile, oldWriteHeapProfile, oldSleep := startCPUProfile, stopCPUProfile, writeHeapProfile, sleep
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defer func() {
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startCPUProfile, stopCPUProfile, writeHeapProfile, sleep = oldStartCPUProfile, oldStopCPUProfile, oldWriteHeapProfile, oldSleep
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}()
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ctx := context.Background()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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errFunc := func(io.Writer) error { return errors.New("") }
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testDuration := time.Second * 5
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tests := []struct {
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profileType pb.ProfileType
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duration *time.Duration
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startCPUProfileFunc func(io.Writer) error
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writeHeapProfileFunc func(io.Writer) error
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wantBytes []byte
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}{
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{
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profileType: pb.ProfileType_CPU,
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duration: &testDuration,
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startCPUProfileFunc: func(w io.Writer) error {
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w.Write([]byte{1})
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return nil
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},
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writeHeapProfileFunc: errFunc,
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wantBytes: []byte{1},
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},
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{
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profileType: pb.ProfileType_CPU,
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startCPUProfileFunc: errFunc,
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writeHeapProfileFunc: errFunc,
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},
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{
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profileType: pb.ProfileType_CPU,
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duration: &testDuration,
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startCPUProfileFunc: func(w io.Writer) error {
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w.Write([]byte{2})
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return nil
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},
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writeHeapProfileFunc: func(w io.Writer) error {
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w.Write([]byte{3})
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return nil
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},
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wantBytes: []byte{2},
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},
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{
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profileType: pb.ProfileType_HEAP,
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startCPUProfileFunc: errFunc,
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writeHeapProfileFunc: func(w io.Writer) error {
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w.Write([]byte{4})
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return nil
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},
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wantBytes: []byte{4},
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},
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{
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profileType: pb.ProfileType_HEAP,
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startCPUProfileFunc: errFunc,
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writeHeapProfileFunc: errFunc,
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},
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{
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profileType: pb.ProfileType_HEAP,
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startCPUProfileFunc: func(w io.Writer) error {
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w.Write([]byte{5})
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return nil
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},
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writeHeapProfileFunc: func(w io.Writer) error {
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w.Write([]byte{6})
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return nil
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},
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wantBytes: []byte{6},
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},
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{
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profileType: pb.ProfileType_PROFILE_TYPE_UNSPECIFIED,
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startCPUProfileFunc: func(w io.Writer) error {
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w.Write([]byte{7})
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return nil
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},
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writeHeapProfileFunc: func(w io.Writer) error {
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w.Write([]byte{8})
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return nil
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},
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},
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}
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for _, tt := range tests {
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mpc := mocks.NewMockProfilerServiceClient(ctrl)
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a := createTestAgent(mpc)
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startCPUProfile = tt.startCPUProfileFunc
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stopCPUProfile = func() {}
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writeHeapProfile = tt.writeHeapProfileFunc
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var gotSleep *time.Duration
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sleep = func(ctx context.Context, d time.Duration) error {
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gotSleep = &d
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return nil
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}
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p := &pb.Profile{ProfileType: tt.profileType}
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if tt.duration != nil {
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p.Duration = ptypes.DurationProto(*tt.duration)
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}
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if tt.wantBytes != nil {
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wantProfile := &pb.Profile{
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ProfileType: p.ProfileType,
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Duration: p.Duration,
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ProfileBytes: tt.wantBytes,
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Labels: a.profileLabels,
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}
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wantRequest := pb.UpdateProfileRequest{
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Profile: wantProfile,
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}
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mpc.EXPECT().UpdateProfile(ctx, gomock.Eq(&wantRequest)).Times(1)
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} else {
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mpc.EXPECT().UpdateProfile(gomock.Any(), gomock.Any()).MaxTimes(0)
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}
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a.profileAndUpload(ctx, p)
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if tt.duration == nil {
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if gotSleep != nil {
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t.Errorf("profileAndUpload(%v) slept for: %v, want no sleep", p, gotSleep)
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}
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} else {
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if gotSleep == nil {
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t.Errorf("profileAndUpload(%v) didn't sleep, want sleep for: %v", p, tt.duration)
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} else if *gotSleep != *tt.duration {
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t.Errorf("profileAndUpload(%v) slept for wrong duration, got: %v, want: %v", p, gotSleep, tt.duration)
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}
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}
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}
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}
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func TestRetry(t *testing.T) {
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normalDuration := time.Second * 3
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negativeDuration := time.Second * -3
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tests := []struct {
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trailers map[string]string
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wantPause *time.Duration
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}{
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{
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createTrailers(normalDuration),
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&normalDuration,
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},
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{
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createTrailers(negativeDuration),
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nil,
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},
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{
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map[string]string{retryInfoMetadata: "wrong format"},
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nil,
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},
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{
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map[string]string{},
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nil,
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},
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}
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for _, tt := range tests {
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md := grpcmd.New(tt.trailers)
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r := &retryer{
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backoff: gax.Backoff{
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Initial: initialBackoff,
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Max: maxBackoff,
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Multiplier: backoffMultiplier,
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},
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md: md,
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}
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pause, shouldRetry := r.Retry(status.Error(codes.Aborted, ""))
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if !shouldRetry {
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t.Error("retryer.Retry() returned shouldRetry false, want true")
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}
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if tt.wantPause != nil {
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if pause != *tt.wantPause {
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t.Errorf("retryer.Retry() returned wrong pause, got: %v, want: %v", pause, tt.wantPause)
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}
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} else {
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if pause > initialBackoff {
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t.Errorf("retryer.Retry() returned wrong pause, got: %v, want: < %v", pause, initialBackoff)
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}
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}
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}
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md := grpcmd.New(map[string]string{})
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r := &retryer{
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backoff: gax.Backoff{
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Initial: initialBackoff,
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Max: maxBackoff,
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Multiplier: backoffMultiplier,
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},
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md: md,
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}
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for i := 0; i < 100; i++ {
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pause, shouldRetry := r.Retry(errors.New(""))
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if !shouldRetry {
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t.Errorf("retryer.Retry() called %v times, returned shouldRetry false, want true", i)
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}
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if pause > maxBackoff {
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t.Errorf("retryer.Retry() called %v times, returned wrong pause, got: %v, want: < %v", i, pause, maxBackoff)
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}
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}
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}
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func TestWithXGoogHeader(t *testing.T) {
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ctx := withXGoogHeader(context.Background())
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md, _ := grpcmd.FromOutgoingContext(ctx)
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if xg := md[xGoogAPIMetadata]; len(xg) == 0 {
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t.Errorf("withXGoogHeader() sets empty xGoogHeader")
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} else {
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if !strings.Contains(xg[0], "gl-go/") {
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t.Errorf("withXGoogHeader() got: %v, want gl-go key", xg[0])
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}
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if !strings.Contains(xg[0], "gccl/") {
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t.Errorf("withXGoogHeader() got: %v, want gccl key", xg[0])
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}
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if !strings.Contains(xg[0], "gax/") {
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t.Errorf("withXGoogHeader() got: %v, want gax key", xg[0])
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}
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if !strings.Contains(xg[0], "grpc/") {
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t.Errorf("withXGoogHeader() got: %v, want grpc key", xg[0])
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}
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}
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}
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func TestInitializeAgent(t *testing.T) {
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oldConfig := config
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defer func() {
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config = oldConfig
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}()
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for _, tt := range []struct {
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config Config
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wantDeploymentLabels map[string]string
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wantProfileLabels map[string]string
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}{
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{
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config: Config{ServiceVersion: testSvcVersion, zone: testZone},
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wantDeploymentLabels: map[string]string{zoneNameLabel: testZone, versionLabel: testSvcVersion},
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wantProfileLabels: map[string]string{},
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},
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{
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config: Config{zone: testZone},
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wantDeploymentLabels: map[string]string{zoneNameLabel: testZone},
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wantProfileLabels: map[string]string{},
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},
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{
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config: Config{ServiceVersion: testSvcVersion},
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wantDeploymentLabels: map[string]string{versionLabel: testSvcVersion},
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wantProfileLabels: map[string]string{},
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},
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{
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config: Config{instance: testInstance},
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wantDeploymentLabels: map[string]string{},
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wantProfileLabels: map[string]string{instanceLabel: testInstance},
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},
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} {
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config = tt.config
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config.ProjectID = testProjectID
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config.Target = testTarget
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a := initializeAgent(nil)
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wantDeployment := &pb.Deployment{
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ProjectId: testProjectID,
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Target: testTarget,
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Labels: tt.wantDeploymentLabels,
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}
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if !testutil.Equal(a.deployment, wantDeployment) {
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t.Errorf("initializeResources() got deployment: %v, want %v", a.deployment, wantDeployment)
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}
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if !testutil.Equal(a.profileLabels, tt.wantProfileLabels) {
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t.Errorf("initializeResources() got profile labels: %v, want %v", a.profileLabels, tt.wantProfileLabels)
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}
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}
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}
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func TestInitializeConfig(t *testing.T) {
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oldConfig, oldService, oldVersion, oldGetProjectID, oldGetInstanceName, oldGetZone, oldOnGCE := config, os.Getenv("GAE_SERVICE"), os.Getenv("GAE_VERSION"), getProjectID, getInstanceName, getZone, onGCE
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defer func() {
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config, getProjectID, getInstanceName, getZone, onGCE = oldConfig, oldGetProjectID, oldGetInstanceName, oldGetZone, oldOnGCE
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if err := os.Setenv("GAE_SERVICE", oldService); err != nil {
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t.Fatal(err)
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}
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if err := os.Setenv("GAE_VERSION", oldVersion); err != nil {
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t.Fatal(err)
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}
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}()
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testGAEService := "test-gae-service"
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testGAEVersion := "test-gae-version"
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testGCEProjectID := "test-gce-project-id"
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for _, tt := range []struct {
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config Config
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wantConfig Config
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wantErrorString string
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onGAE bool
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onGCE bool
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}{
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{
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Config{Service: testService},
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Config{Target: testService, ProjectID: testGCEProjectID, zone: testZone, instance: testInstance},
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"",
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false,
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true,
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},
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{
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Config{Target: testTarget},
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Config{Target: testTarget, ProjectID: testGCEProjectID, zone: testZone, instance: testInstance},
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"",
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false,
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true,
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},
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{
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Config{},
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Config{},
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"service name must be specified in the configuration",
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false,
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true,
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},
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{
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Config{Service: testService},
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Config{Target: testService, ServiceVersion: testGAEVersion, ProjectID: testGCEProjectID, zone: testZone, instance: testInstance},
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"",
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true,
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true,
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},
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{
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Config{Target: testTarget},
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Config{Target: testTarget, ServiceVersion: testGAEVersion, ProjectID: testGCEProjectID, zone: testZone, instance: testInstance},
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"",
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true,
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true,
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},
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{
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Config{},
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Config{Target: testGAEService, ServiceVersion: testGAEVersion, ProjectID: testGCEProjectID, zone: testZone, instance: testInstance},
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"",
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true,
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true,
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},
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{
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Config{Service: testService, ServiceVersion: testSvcVersion},
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Config{Target: testService, ServiceVersion: testSvcVersion, ProjectID: testGCEProjectID, zone: testZone, instance: testInstance},
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"",
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false,
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true,
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},
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{
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Config{Service: testService, ServiceVersion: testSvcVersion},
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Config{Target: testService, ServiceVersion: testSvcVersion, ProjectID: testGCEProjectID, zone: testZone, instance: testInstance},
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"",
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true,
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true,
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},
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{
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Config{Service: testService, ProjectID: testProjectID},
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Config{Target: testService, ProjectID: testProjectID, zone: testZone, instance: testInstance},
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"",
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false,
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true,
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},
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{
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Config{Service: testService},
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Config{Target: testService},
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"project ID must be specified in the configuration if running outside of GCP",
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false,
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false,
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},
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} {
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envService, envVersion := "", ""
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if tt.onGAE {
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envService, envVersion = testGAEService, testGAEVersion
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}
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if err := os.Setenv("GAE_SERVICE", envService); err != nil {
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t.Fatal(err)
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}
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if err := os.Setenv("GAE_VERSION", envVersion); err != nil {
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t.Fatal(err)
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}
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if tt.onGCE {
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onGCE = func() bool { return true }
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getProjectID = func() (string, error) { return testGCEProjectID, nil }
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getZone = func() (string, error) { return testZone, nil }
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getInstanceName = func() (string, error) { return testInstance, nil }
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} else {
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onGCE = func() bool { return false }
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getProjectID = func() (string, error) { return "", fmt.Errorf("test get project id error") }
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getZone = func() (string, error) { return "", fmt.Errorf("test get zone error") }
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getInstanceName = func() (string, error) { return "", fmt.Errorf("test get instance error") }
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}
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errorString := ""
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if err := initializeConfig(tt.config); err != nil {
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errorString = err.Error()
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}
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if !strings.Contains(errorString, tt.wantErrorString) {
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t.Errorf("initializeConfig(%v) got error: %v, want contain %v", tt.config, errorString, tt.wantErrorString)
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}
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if tt.wantErrorString == "" {
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tt.wantConfig.APIAddr = apiAddress
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}
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tt.wantConfig.Service = tt.config.Service
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if config != tt.wantConfig {
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t.Errorf("initializeConfig(%v) got: %v, want %v", tt.config, config, tt.wantConfig)
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}
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}
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for _, tt := range []struct {
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wantErrorString string
|
|
getProjectIDError bool
|
|
getZoneError bool
|
|
getInstanceError bool
|
|
}{
|
|
{
|
|
wantErrorString: "failed to get the project ID from Compute Engine:",
|
|
getProjectIDError: true,
|
|
},
|
|
{
|
|
wantErrorString: "failed to get zone from Compute Engine:",
|
|
getZoneError: true,
|
|
},
|
|
{
|
|
wantErrorString: "failed to get instance from Compute Engine:",
|
|
getInstanceError: true,
|
|
},
|
|
} {
|
|
onGCE = func() bool { return true }
|
|
if tt.getProjectIDError {
|
|
getProjectID = func() (string, error) { return "", fmt.Errorf("test get project ID error") }
|
|
} else {
|
|
getProjectID = func() (string, error) { return testGCEProjectID, nil }
|
|
}
|
|
|
|
if tt.getZoneError {
|
|
getZone = func() (string, error) { return "", fmt.Errorf("test get zone error") }
|
|
} else {
|
|
getZone = func() (string, error) { return testZone, nil }
|
|
}
|
|
|
|
if tt.getInstanceError {
|
|
getInstanceName = func() (string, error) { return "", fmt.Errorf("test get instance error") }
|
|
} else {
|
|
getInstanceName = func() (string, error) { return testInstance, nil }
|
|
}
|
|
errorString := ""
|
|
if err := initializeConfig(Config{Service: testService}); err != nil {
|
|
errorString = err.Error()
|
|
}
|
|
|
|
if !strings.Contains(errorString, tt.wantErrorString) {
|
|
t.Errorf("initializeConfig() got error: %v, want contain %v", errorString, tt.wantErrorString)
|
|
}
|
|
}
|
|
}
|
|
|
|
type fakeProfilerServer struct {
|
|
pb.ProfilerServiceServer
|
|
count int
|
|
gotCPUProfile []byte
|
|
gotHeapProfile []byte
|
|
done chan bool
|
|
}
|
|
|
|
func (fs *fakeProfilerServer) CreateProfile(ctx context.Context, in *pb.CreateProfileRequest) (*pb.Profile, error) {
|
|
fs.count++
|
|
switch fs.count {
|
|
case 1:
|
|
return &pb.Profile{Name: "testCPU", ProfileType: pb.ProfileType_CPU, Duration: ptypes.DurationProto(testProfileDuration)}, nil
|
|
case 2:
|
|
return &pb.Profile{Name: "testHeap", ProfileType: pb.ProfileType_HEAP}, nil
|
|
default:
|
|
select {}
|
|
}
|
|
}
|
|
|
|
func (fs *fakeProfilerServer) UpdateProfile(ctx context.Context, in *pb.UpdateProfileRequest) (*pb.Profile, error) {
|
|
switch in.Profile.ProfileType {
|
|
case pb.ProfileType_CPU:
|
|
fs.gotCPUProfile = in.Profile.ProfileBytes
|
|
case pb.ProfileType_HEAP:
|
|
fs.gotHeapProfile = in.Profile.ProfileBytes
|
|
fs.done <- true
|
|
}
|
|
|
|
return in.Profile, nil
|
|
}
|
|
|
|
func profileeLoop(quit chan bool) {
|
|
for {
|
|
select {
|
|
case <-quit:
|
|
return
|
|
default:
|
|
profileeWork()
|
|
}
|
|
}
|
|
}
|
|
|
|
func profileeWork() {
|
|
data := make([]byte, 1024*1024)
|
|
rand.Read(data)
|
|
|
|
var b bytes.Buffer
|
|
gz := gzip.NewWriter(&b)
|
|
if _, err := gz.Write(data); err != nil {
|
|
log.Printf("failed to write to gzip stream", err)
|
|
return
|
|
}
|
|
if err := gz.Flush(); err != nil {
|
|
log.Printf("failed to flush to gzip stream", err)
|
|
return
|
|
}
|
|
if err := gz.Close(); err != nil {
|
|
log.Printf("failed to close gzip stream", err)
|
|
}
|
|
}
|
|
|
|
func checkSymbolization(p *profile.Profile) error {
|
|
for _, l := range p.Location {
|
|
if len(l.Line) > 0 && l.Line[0].Function != nil && strings.Contains(l.Line[0].Function.Name, wantFunctionName) {
|
|
return nil
|
|
}
|
|
}
|
|
return fmt.Errorf("want function name %v not found in profile", wantFunctionName)
|
|
}
|
|
|
|
func validateProfile(rawData []byte) error {
|
|
p, err := profile.ParseData(rawData)
|
|
if err != nil {
|
|
return fmt.Errorf("ParseData failed: %v", err)
|
|
}
|
|
|
|
if len(p.Sample) == 0 {
|
|
return fmt.Errorf("profile contains zero samples: %v", p)
|
|
}
|
|
|
|
if len(p.Location) == 0 {
|
|
return fmt.Errorf("profile contains zero locations: %v", p)
|
|
}
|
|
|
|
if len(p.Function) == 0 {
|
|
return fmt.Errorf("profile contains zero functions: %v", p)
|
|
}
|
|
|
|
if err := checkSymbolization(p); err != nil {
|
|
return fmt.Errorf("checkSymbolization failed: %v for %v", err, p)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func TestAgentWithServer(t *testing.T) {
|
|
oldDialGRPC, oldConfig := dialGRPC, config
|
|
defer func() {
|
|
dialGRPC, config = oldDialGRPC, oldConfig
|
|
}()
|
|
|
|
srv, err := testutil.NewServer()
|
|
if err != nil {
|
|
t.Fatalf("testutil.NewServer(): %v", err)
|
|
}
|
|
fakeServer := &fakeProfilerServer{done: make(chan bool)}
|
|
pb.RegisterProfilerServiceServer(srv.Gsrv, fakeServer)
|
|
|
|
srv.Start()
|
|
|
|
dialGRPC = gtransport.DialInsecure
|
|
if err := Start(Config{
|
|
Target: testTarget,
|
|
ProjectID: testProjectID,
|
|
APIAddr: srv.Addr,
|
|
instance: testInstance,
|
|
zone: testZone,
|
|
}); err != nil {
|
|
t.Fatalf("Start(): %v", err)
|
|
}
|
|
|
|
quitProfilee := make(chan bool)
|
|
go profileeLoop(quitProfilee)
|
|
|
|
select {
|
|
case <-fakeServer.done:
|
|
case <-time.After(testServerTimeout):
|
|
t.Errorf("got timeout after %v, want fake server done", testServerTimeout)
|
|
}
|
|
quitProfilee <- true
|
|
|
|
if err := validateProfile(fakeServer.gotCPUProfile); err != nil {
|
|
t.Errorf("validateProfile(gotCPUProfile): %v", err)
|
|
}
|
|
if err := validateProfile(fakeServer.gotHeapProfile); err != nil {
|
|
t.Errorf("validateProfile(gotHeapProfile): %v", err)
|
|
}
|
|
}
|