417 lines
10 KiB
Go
417 lines
10 KiB
Go
/*
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* Copyright 2022 The Dragonfly Authors
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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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*/
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package rpcserver
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import (
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"context"
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"fmt"
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"io"
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"net"
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"sync"
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"testing"
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"github.com/phayes/freeport"
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testifyassert "github.com/stretchr/testify/assert"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/trace"
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"go.uber.org/atomic"
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"go.uber.org/mock/gomock"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/credentials/insecure"
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"google.golang.org/grpc/health"
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"google.golang.org/grpc/status"
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cdnsystemv1 "d7y.io/api/v2/pkg/apis/cdnsystem/v1"
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commonv1 "d7y.io/api/v2/pkg/apis/common/v1"
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schedulerv1 "d7y.io/api/v2/pkg/apis/scheduler/v1"
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"d7y.io/dragonfly/v2/client/config"
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"d7y.io/dragonfly/v2/client/daemon/peer"
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"d7y.io/dragonfly/v2/client/daemon/storage"
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"d7y.io/dragonfly/v2/client/daemon/storage/mocks"
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"d7y.io/dragonfly/v2/client/util"
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"d7y.io/dragonfly/v2/pkg/dfnet"
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"d7y.io/dragonfly/v2/pkg/rpc/cdnsystem/client"
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"d7y.io/dragonfly/v2/pkg/rpc/common"
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dfdaemonserver "d7y.io/dragonfly/v2/pkg/rpc/dfdaemon/server"
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)
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func Test_ObtainSeeds(t *testing.T) {
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assert := testifyassert.New(t)
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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var (
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pieceSize = uint32(1024)
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)
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type pieceRange struct {
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start int
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end int
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}
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var tests = []struct {
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name string
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existTaskID string // test for non-exists task
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existPieces []pieceRange // already exist pieces in storage
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followingPieces []pieceRange // following pieces in running task subscribe channel
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limit uint32
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totalPieces uint32
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success bool
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verify func(t *testing.T, assert *testifyassert.Assertions)
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}{
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{
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name: "already exists in storage",
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existPieces: []pieceRange{
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{
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start: 0,
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end: 10,
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},
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},
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totalPieces: 11,
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success: true,
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verify: func(t *testing.T, assert *testifyassert.Assertions) {
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},
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},
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{
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name: "already exists in storage with extra get piece request",
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existPieces: []pieceRange{
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{
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start: 0,
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end: 10,
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},
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},
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totalPieces: 11,
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success: true,
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verify: func(t *testing.T, assert *testifyassert.Assertions) {
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},
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},
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{
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name: "already exists in storage - large",
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existPieces: []pieceRange{
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{
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start: 0,
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end: 1000,
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},
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},
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totalPieces: 1001,
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success: true,
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verify: func(t *testing.T, assert *testifyassert.Assertions) {
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},
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},
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{
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name: "already exists in storage - large with extra get piece request",
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existPieces: []pieceRange{
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{
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start: 0,
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end: 1000,
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},
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},
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totalPieces: 1001,
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success: true,
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verify: func(t *testing.T, assert *testifyassert.Assertions) {
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},
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},
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{
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name: "partial exists in storage",
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existPieces: []pieceRange{
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{
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start: 0,
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end: 10,
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},
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},
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followingPieces: []pieceRange{
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{
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start: 11,
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end: 20,
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},
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},
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totalPieces: 21,
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success: true,
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verify: func(t *testing.T, assert *testifyassert.Assertions) {
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},
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},
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{
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name: "partial exists in storage - large",
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existPieces: []pieceRange{
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{
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start: 0,
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end: 1000,
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},
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},
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followingPieces: []pieceRange{
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{
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start: 1001,
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end: 2000,
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},
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},
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totalPieces: 2001,
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success: true,
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verify: func(t *testing.T, assert *testifyassert.Assertions) {
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},
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},
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{
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name: "not exists in storage",
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followingPieces: []pieceRange{
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{
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start: 0,
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end: 20,
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},
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},
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totalPieces: 21,
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success: true,
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verify: func(t *testing.T, assert *testifyassert.Assertions) {
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},
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},
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{
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name: "not exists in storage - large",
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followingPieces: []pieceRange{
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{
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start: 0,
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end: 2000,
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},
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},
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totalPieces: 2001,
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success: true,
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verify: func(t *testing.T, assert *testifyassert.Assertions) {
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},
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},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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for _, delay := range []bool{false, true} {
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delay := delay
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mockStorageManger := mocks.NewMockManager(ctrl)
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if tc.limit == 0 {
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tc.limit = 1024
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}
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var (
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totalPieces []*commonv1.PieceInfo
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lock sync.Mutex
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)
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var addedPieces = make(map[uint32]*commonv1.PieceInfo)
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for _, p := range tc.existPieces {
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if p.end == 0 {
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p.end = p.start
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}
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for i := p.start; i <= p.end; i++ {
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if _, ok := addedPieces[uint32(i)]; ok {
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continue
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}
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piece := &commonv1.PieceInfo{
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PieceNum: int32(i),
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RangeStart: uint64(i) * uint64(pieceSize),
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RangeSize: pieceSize,
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PieceOffset: uint64(i) * uint64(pieceSize),
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PieceStyle: commonv1.PieceStyle_PLAIN,
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}
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totalPieces = append(totalPieces, piece)
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addedPieces[uint32(i)] = piece
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}
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}
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mockStorageManger.EXPECT().GetPieces(gomock.Any(),
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gomock.Any()).AnyTimes().DoAndReturn(
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func(ctx context.Context, req *commonv1.PieceTaskRequest) (*commonv1.PiecePacket, error) {
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var pieces []*commonv1.PieceInfo
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lock.Lock()
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for i := req.StartNum; i < tc.totalPieces; i++ {
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if piece, ok := addedPieces[i]; ok {
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if piece.PieceNum >= int32(req.StartNum) && len(pieces) < int(req.Limit) {
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pieces = append(pieces, piece)
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}
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}
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}
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lock.Unlock()
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return &commonv1.PiecePacket{
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TaskId: req.TaskId,
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DstPid: req.DstPid,
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DstAddr: "",
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PieceInfos: pieces,
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TotalPiece: int32(tc.totalPieces),
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ContentLength: int64(tc.totalPieces) * int64(pieceSize),
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PieceMd5Sign: "",
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}, nil
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})
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mockStorageManger.EXPECT().GetExtendAttribute(gomock.Any(),
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gomock.Any()).AnyTimes().DoAndReturn(
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func(ctx context.Context, req *storage.PeerTaskMetadata) (*commonv1.ExtendAttribute, error) {
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return &commonv1.ExtendAttribute{
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Header: map[string]string{
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"Test": "test",
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},
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}, nil
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})
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mockTaskManager := peer.NewMockTaskManager(ctrl)
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mockTaskManager.EXPECT().StartSeedTask(gomock.Any(), gomock.Any()).DoAndReturn(
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func(ctx context.Context, req *peer.SeedTaskRequest) (*peer.SeedTaskResponse, bool, error) {
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ch := make(chan *peer.PieceInfo)
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success := make(chan struct{})
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fail := make(chan struct{})
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go func(followingPieces []pieceRange) {
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for i, p := range followingPieces {
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if p.end == 0 {
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p.end = p.start
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}
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for j := p.start; j <= p.end; j++ {
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lock.Lock()
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if _, ok := addedPieces[uint32(j)]; ok {
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continue
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}
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piece := &commonv1.PieceInfo{
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PieceNum: int32(j),
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RangeStart: uint64(j) * uint64(pieceSize),
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RangeSize: pieceSize,
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PieceOffset: uint64(j) * uint64(pieceSize),
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PieceStyle: commonv1.PieceStyle_PLAIN,
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}
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totalPieces = append(totalPieces, piece)
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addedPieces[uint32(j)] = piece
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lock.Unlock()
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var finished bool
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if i == len(followingPieces)-1 && j == p.end {
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finished = true
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}
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if !delay {
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ch <- &peer.PieceInfo{
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Num: int32(j),
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Finished: finished,
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}
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}
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}
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}
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close(success)
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}(tc.followingPieces)
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tracer := otel.Tracer("test")
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ctx, span := tracer.Start(ctx, config.SpanSeedTask, trace.WithSpanKind(trace.SpanKindClient))
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return &peer.SeedTaskResponse{
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SubscribeResponse: peer.SubscribeResponse{
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Storage: mockStorageManger,
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PieceInfoChannel: ch,
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Success: success,
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Fail: fail,
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},
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Context: ctx,
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Span: span,
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TaskID: "fake-task-id",
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}, false, nil
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})
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s := &server{
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KeepAlive: util.NewKeepAlive("test"),
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peerHost: &schedulerv1.PeerHost{},
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storageManager: mockStorageManger,
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peerTaskManager: mockTaskManager,
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}
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sd := &seeder{server: s}
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_, client := setupSeederServerAndClient(t, s, sd, assert, s.ServePeer)
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pps, err := client.ObtainSeeds(
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context.Background(),
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&cdnsystemv1.SeedRequest{
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TaskId: "fake-task-id",
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Url: "http://localhost/path/to/file",
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UrlMeta: nil,
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})
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assert.Nil(err, "client obtain seeds grpc call should be ok")
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var (
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total = make(map[int32]bool)
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maxNum int32
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)
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for {
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p, err := pps.Recv()
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if err == io.EOF {
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break
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}
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if p.PieceInfo.PieceNum == common.BeginOfPiece {
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continue
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}
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total[p.PieceInfo.PieceNum] = true
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if p.PieceInfo.PieceNum >= maxNum {
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maxNum = p.PieceInfo.PieceNum
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}
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if tc.success {
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assert.Nil(err, "receive seed info should be ok")
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}
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}
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if tc.success {
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assert.Equal(int(maxNum+1), len(total))
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}
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s.peerServer.GracefulStop()
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}
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})
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}
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}
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func setupSeederServerAndClient(t *testing.T, srv *server, sd *seeder, assert *testifyassert.Assertions, serveFunc func(listener net.Listener) error) (int, client.Client) {
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if srv.healthServer == nil {
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srv.healthServer = health.NewServer()
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}
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srv.peerServer = dfdaemonserver.New(srv, srv.healthServer)
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cdnsystemv1.RegisterSeederServer(srv.peerServer, sd)
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port, err := freeport.GetFreePort()
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if err != nil {
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t.Fatal(err)
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}
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ln, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
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assert.Nil(err, "get free port should be ok")
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go func() {
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if err := serveFunc(ln); err != nil {
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t.Error(err)
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}
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}()
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client, err := client.GetClientByAddr(context.Background(), dfnet.NetAddr{
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Type: dfnet.TCP,
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Addr: fmt.Sprintf(":%d", port),
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}, grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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t.Fatal(err)
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}
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return port, client
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}
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func Test_ObtainSeedsResourceExhausted(t *testing.T) {
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sd := &seeder{
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maxConcurrent: 10,
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concurrent: atomic.NewInt64(10),
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}
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assert := testifyassert.New(t)
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err := sd.ObtainSeeds(nil, nil)
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assert.Error(err, "ObtainSeeds should return error")
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st, ok := status.FromError(err)
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assert.True(ok, "error should be status")
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assert.Equal(codes.ResourceExhausted, st.Code())
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}
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