mirror of https://github.com/grpc/grpc-go.git
372 lines
11 KiB
Go
372 lines
11 KiB
Go
/*
|
|
*
|
|
* Copyright 2021 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 clusterresolver
|
|
|
|
import (
|
|
"encoding/json"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/google/go-cmp/cmp"
|
|
"github.com/google/go-cmp/cmp/cmpopts"
|
|
"google.golang.org/grpc/balancer"
|
|
"google.golang.org/grpc/balancer/ringhash"
|
|
"google.golang.org/grpc/balancer/roundrobin"
|
|
iringhash "google.golang.org/grpc/internal/ringhash"
|
|
iserviceconfig "google.golang.org/grpc/internal/serviceconfig"
|
|
"google.golang.org/grpc/internal/xds/balancer/outlierdetection"
|
|
"google.golang.org/grpc/internal/xds/bootstrap"
|
|
)
|
|
|
|
func TestDiscoveryMechanismTypeMarshalJSON(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
typ DiscoveryMechanismType
|
|
want string
|
|
}{
|
|
{
|
|
name: "eds",
|
|
typ: DiscoveryMechanismTypeEDS,
|
|
want: `"EDS"`,
|
|
},
|
|
{
|
|
name: "dns",
|
|
typ: DiscoveryMechanismTypeLogicalDNS,
|
|
want: `"LOGICAL_DNS"`,
|
|
},
|
|
}
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
if got, err := json.Marshal(tt.typ); err != nil || string(got) != tt.want {
|
|
t.Fatalf("DiscoveryMechanismTypeEDS.MarshalJSON() = (%v, %v), want (%s, nil)", string(got), err, tt.want)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
func TestDiscoveryMechanismTypeUnmarshalJSON(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
js string
|
|
want DiscoveryMechanismType
|
|
wantErr bool
|
|
}{
|
|
{
|
|
name: "eds",
|
|
js: `"EDS"`,
|
|
want: DiscoveryMechanismTypeEDS,
|
|
},
|
|
{
|
|
name: "dns",
|
|
js: `"LOGICAL_DNS"`,
|
|
want: DiscoveryMechanismTypeLogicalDNS,
|
|
},
|
|
{
|
|
name: "error",
|
|
js: `"1234"`,
|
|
wantErr: true,
|
|
},
|
|
}
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
var got DiscoveryMechanismType
|
|
err := json.Unmarshal([]byte(tt.js), &got)
|
|
if (err != nil) != tt.wantErr {
|
|
t.Fatalf("DiscoveryMechanismTypeEDS.UnmarshalJSON() error = %v, wantErr %v", err, tt.wantErr)
|
|
}
|
|
if diff := cmp.Diff(got, tt.want); diff != "" {
|
|
t.Fatalf("DiscoveryMechanismTypeEDS.UnmarshalJSON() got unexpected output, diff (-got +want): %v", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
const (
|
|
testJSONConfig1 = `{
|
|
"discoveryMechanisms": [{
|
|
"cluster": "test-cluster-name",
|
|
"lrsLoadReportingServer": {
|
|
"server_uri": "trafficdirector.googleapis.com:443",
|
|
"channel_creds": [ { "type": "google_default" } ]
|
|
},
|
|
"maxConcurrentRequests": 314,
|
|
"type": "EDS",
|
|
"edsServiceName": "test-eds-service-name",
|
|
"outlierDetection": {}
|
|
}],
|
|
"xdsLbPolicy":[{"round_robin":{}}]
|
|
}`
|
|
testJSONConfig2 = `{
|
|
"discoveryMechanisms": [{
|
|
"cluster": "test-cluster-name",
|
|
"lrsLoadReportingServer": {
|
|
"server_uri": "trafficdirector.googleapis.com:443",
|
|
"channel_creds": [ { "type": "google_default" } ]
|
|
},
|
|
"maxConcurrentRequests": 314,
|
|
"type": "EDS",
|
|
"edsServiceName": "test-eds-service-name",
|
|
"outlierDetection": {}
|
|
},{
|
|
"type": "LOGICAL_DNS",
|
|
"outlierDetection": {}
|
|
}],
|
|
"xdsLbPolicy":[{"round_robin":{}}]
|
|
}`
|
|
testJSONConfig3 = `{
|
|
"discoveryMechanisms": [{
|
|
"cluster": "test-cluster-name",
|
|
"lrsLoadReportingServer": {
|
|
"server_uri": "trafficdirector.googleapis.com:443",
|
|
"channel_creds": [ { "type": "google_default" } ]
|
|
},
|
|
"maxConcurrentRequests": 314,
|
|
"type": "EDS",
|
|
"edsServiceName": "test-eds-service-name",
|
|
"outlierDetection": {}
|
|
}],
|
|
"xdsLbPolicy":[{"round_robin":{}}]
|
|
}`
|
|
testJSONConfig4 = `{
|
|
"discoveryMechanisms": [{
|
|
"cluster": "test-cluster-name",
|
|
"lrsLoadReportingServer": {
|
|
"server_uri": "trafficdirector.googleapis.com:443",
|
|
"channel_creds": [ { "type": "google_default" } ]
|
|
},
|
|
"maxConcurrentRequests": 314,
|
|
"type": "EDS",
|
|
"edsServiceName": "test-eds-service-name",
|
|
"outlierDetection": {}
|
|
}],
|
|
"xdsLbPolicy":[{"ring_hash_experimental":{}}]
|
|
}`
|
|
testJSONConfig5 = `{
|
|
"discoveryMechanisms": [{
|
|
"cluster": "test-cluster-name",
|
|
"lrsLoadReportingServer": {
|
|
"server_uri": "trafficdirector.googleapis.com:443",
|
|
"channel_creds": [ { "type": "google_default" } ]
|
|
},
|
|
"maxConcurrentRequests": 314,
|
|
"type": "EDS",
|
|
"edsServiceName": "test-eds-service-name",
|
|
"outlierDetection": {}
|
|
}],
|
|
"xdsLbPolicy":[{"round_robin":{}}]
|
|
}`
|
|
)
|
|
|
|
func TestParseConfig(t *testing.T) {
|
|
testLRSServerConfig, err := bootstrap.ServerConfigForTesting(bootstrap.ServerConfigTestingOptions{
|
|
URI: "trafficdirector.googleapis.com:443",
|
|
ChannelCreds: []bootstrap.ChannelCreds{{Type: "google_default"}},
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("Failed to create LRS server config for testing: %v", err)
|
|
}
|
|
tests := []struct {
|
|
name string
|
|
js string
|
|
want *LBConfig
|
|
wantErr bool
|
|
}{
|
|
{
|
|
name: "empty json",
|
|
js: "",
|
|
want: nil,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
name: "OK with one discovery mechanism",
|
|
js: testJSONConfig1,
|
|
want: &LBConfig{
|
|
DiscoveryMechanisms: []DiscoveryMechanism{
|
|
{
|
|
Cluster: testClusterName,
|
|
LoadReportingServer: testLRSServerConfig,
|
|
MaxConcurrentRequests: newUint32(testMaxRequests),
|
|
Type: DiscoveryMechanismTypeEDS,
|
|
EDSServiceName: testEDSService,
|
|
outlierDetection: outlierdetection.LBConfig{
|
|
Interval: iserviceconfig.Duration(10 * time.Second), // default interval
|
|
BaseEjectionTime: iserviceconfig.Duration(30 * time.Second),
|
|
MaxEjectionTime: iserviceconfig.Duration(300 * time.Second),
|
|
MaxEjectionPercent: 10,
|
|
// sre and fpe are both nil
|
|
},
|
|
},
|
|
},
|
|
xdsLBPolicy: iserviceconfig.BalancerConfig{ // do we want to make this not pointer
|
|
Name: roundrobin.Name,
|
|
Config: nil,
|
|
},
|
|
},
|
|
wantErr: false,
|
|
},
|
|
{
|
|
name: "OK with multiple discovery mechanisms",
|
|
js: testJSONConfig2,
|
|
want: &LBConfig{
|
|
DiscoveryMechanisms: []DiscoveryMechanism{
|
|
{
|
|
Cluster: testClusterName,
|
|
LoadReportingServer: testLRSServerConfig,
|
|
MaxConcurrentRequests: newUint32(testMaxRequests),
|
|
Type: DiscoveryMechanismTypeEDS,
|
|
EDSServiceName: testEDSService,
|
|
outlierDetection: outlierdetection.LBConfig{
|
|
Interval: iserviceconfig.Duration(10 * time.Second), // default interval
|
|
BaseEjectionTime: iserviceconfig.Duration(30 * time.Second),
|
|
MaxEjectionTime: iserviceconfig.Duration(300 * time.Second),
|
|
MaxEjectionPercent: 10,
|
|
// sre and fpe are both nil
|
|
},
|
|
},
|
|
{
|
|
Type: DiscoveryMechanismTypeLogicalDNS,
|
|
outlierDetection: outlierdetection.LBConfig{
|
|
Interval: iserviceconfig.Duration(10 * time.Second), // default interval
|
|
BaseEjectionTime: iserviceconfig.Duration(30 * time.Second),
|
|
MaxEjectionTime: iserviceconfig.Duration(300 * time.Second),
|
|
MaxEjectionPercent: 10,
|
|
// sre and fpe are both nil
|
|
},
|
|
},
|
|
},
|
|
xdsLBPolicy: iserviceconfig.BalancerConfig{
|
|
Name: roundrobin.Name,
|
|
Config: nil,
|
|
},
|
|
},
|
|
wantErr: false,
|
|
},
|
|
{
|
|
name: "OK with picking policy round_robin",
|
|
js: testJSONConfig3,
|
|
want: &LBConfig{
|
|
DiscoveryMechanisms: []DiscoveryMechanism{
|
|
{
|
|
Cluster: testClusterName,
|
|
LoadReportingServer: testLRSServerConfig,
|
|
MaxConcurrentRequests: newUint32(testMaxRequests),
|
|
Type: DiscoveryMechanismTypeEDS,
|
|
EDSServiceName: testEDSService,
|
|
outlierDetection: outlierdetection.LBConfig{
|
|
Interval: iserviceconfig.Duration(10 * time.Second), // default interval
|
|
BaseEjectionTime: iserviceconfig.Duration(30 * time.Second),
|
|
MaxEjectionTime: iserviceconfig.Duration(300 * time.Second),
|
|
MaxEjectionPercent: 10,
|
|
// sre and fpe are both nil
|
|
},
|
|
},
|
|
},
|
|
xdsLBPolicy: iserviceconfig.BalancerConfig{
|
|
Name: roundrobin.Name,
|
|
Config: nil,
|
|
},
|
|
},
|
|
wantErr: false,
|
|
},
|
|
{
|
|
name: "OK with picking policy ring_hash",
|
|
js: testJSONConfig4,
|
|
want: &LBConfig{
|
|
DiscoveryMechanisms: []DiscoveryMechanism{
|
|
{
|
|
Cluster: testClusterName,
|
|
LoadReportingServer: testLRSServerConfig,
|
|
MaxConcurrentRequests: newUint32(testMaxRequests),
|
|
Type: DiscoveryMechanismTypeEDS,
|
|
EDSServiceName: testEDSService,
|
|
outlierDetection: outlierdetection.LBConfig{
|
|
Interval: iserviceconfig.Duration(10 * time.Second), // default interval
|
|
BaseEjectionTime: iserviceconfig.Duration(30 * time.Second),
|
|
MaxEjectionTime: iserviceconfig.Duration(300 * time.Second),
|
|
MaxEjectionPercent: 10,
|
|
// sre and fpe are both nil
|
|
},
|
|
},
|
|
},
|
|
xdsLBPolicy: iserviceconfig.BalancerConfig{
|
|
Name: ringhash.Name,
|
|
Config: &iringhash.LBConfig{
|
|
// Ringhash LB config with default min and max.
|
|
MinRingSize: 1024,
|
|
MaxRingSize: 4096,
|
|
},
|
|
},
|
|
},
|
|
wantErr: false,
|
|
},
|
|
{
|
|
name: "noop-outlier-detection",
|
|
js: testJSONConfig5,
|
|
want: &LBConfig{
|
|
DiscoveryMechanisms: []DiscoveryMechanism{
|
|
{
|
|
Cluster: testClusterName,
|
|
LoadReportingServer: testLRSServerConfig,
|
|
MaxConcurrentRequests: newUint32(testMaxRequests),
|
|
Type: DiscoveryMechanismTypeEDS,
|
|
EDSServiceName: testEDSService,
|
|
outlierDetection: outlierdetection.LBConfig{
|
|
Interval: iserviceconfig.Duration(10 * time.Second), // default interval
|
|
BaseEjectionTime: iserviceconfig.Duration(30 * time.Second),
|
|
MaxEjectionTime: iserviceconfig.Duration(300 * time.Second),
|
|
MaxEjectionPercent: 10,
|
|
// sre and fpe are both nil
|
|
},
|
|
},
|
|
},
|
|
xdsLBPolicy: iserviceconfig.BalancerConfig{
|
|
Name: roundrobin.Name,
|
|
Config: nil,
|
|
},
|
|
},
|
|
wantErr: false,
|
|
},
|
|
}
|
|
for _, tt := range tests {
|
|
b := balancer.Get(Name)
|
|
if b == nil {
|
|
t.Fatalf("LB policy %q not registered", Name)
|
|
}
|
|
cfgParser, ok := b.(balancer.ConfigParser)
|
|
if !ok {
|
|
t.Fatalf("LB policy %q does not support config parsing", Name)
|
|
}
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
got, err := cfgParser.ParseConfig([]byte(tt.js))
|
|
if (err != nil) != tt.wantErr {
|
|
t.Fatalf("parseConfig() error = %v, wantErr %v", err, tt.wantErr)
|
|
}
|
|
if tt.wantErr {
|
|
return
|
|
}
|
|
if diff := cmp.Diff(got, tt.want, cmp.AllowUnexported(LBConfig{}), cmpopts.IgnoreFields(LBConfig{}, "XDSLBPolicy")); diff != "" {
|
|
t.Errorf("parseConfig() got unexpected output, diff (-got +want): %v", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func newUint32(i uint32) *uint32 {
|
|
return &i
|
|
}
|