blob: b3c6988e8d970cebfa2d6567603afa53964e08d2 [file] [log] [blame]
/*
*
* Copyright 2017 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 grpc
import (
"encoding/json"
"fmt"
"math"
"reflect"
"testing"
"time"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/serviceconfig"
)
type parseTestCase struct {
scjs string
wantSC *ServiceConfig
wantErr bool
}
func runParseTests(t *testing.T, testCases []parseTestCase) {
t.Helper()
for _, c := range testCases {
scpr := parseServiceConfig(c.scjs)
var sc *ServiceConfig
sc, _ = scpr.Config.(*ServiceConfig)
if !c.wantErr {
c.wantSC.rawJSONString = c.scjs
}
if c.wantErr != (scpr.Err != nil) || !reflect.DeepEqual(sc, c.wantSC) {
t.Fatalf("parseServiceConfig(%s) = %+v, %v, want %+v, %v", c.scjs, sc, scpr.Err, c.wantSC, c.wantErr)
}
}
}
type pbbData struct {
serviceconfig.LoadBalancingConfig
Foo string
Bar int
}
type parseBalancerBuilder struct{}
func (parseBalancerBuilder) Name() string {
return "pbb"
}
func (parseBalancerBuilder) ParseConfig(c json.RawMessage) (serviceconfig.LoadBalancingConfig, error) {
d := pbbData{}
if err := json.Unmarshal(c, &d); err != nil {
return nil, err
}
return d, nil
}
func (parseBalancerBuilder) Build(cc balancer.ClientConn, opts balancer.BuildOptions) balancer.Balancer {
panic("unimplemented")
}
func init() {
balancer.Register(parseBalancerBuilder{})
}
func (s) TestParseLBConfig(t *testing.T) {
testcases := []parseTestCase{
{
`{
"loadBalancingConfig": [{"pbb": { "foo": "hi" } }]
}`,
&ServiceConfig{
Methods: make(map[string]MethodConfig),
lbConfig: &lbConfig{name: "pbb", cfg: pbbData{Foo: "hi"}},
},
false,
},
}
runParseTests(t, testcases)
}
func (s) TestParseNoLBConfigSupported(t *testing.T) {
// We have a loadBalancingConfig field but will not encounter a supported
// policy. The config will be considered invalid in this case.
testcases := []parseTestCase{
{
scjs: `{
"loadBalancingConfig": [{"not_a_balancer1": {} }, {"not_a_balancer2": {}}]
}`,
wantErr: true,
}, {
scjs: `{"loadBalancingConfig": []}`,
wantErr: true,
},
}
runParseTests(t, testcases)
}
func (s) TestParseLoadBalancer(t *testing.T) {
testcases := []parseTestCase{
{
`{
"loadBalancingPolicy": "round_robin",
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"waitForReady": true
}
]
}`,
&ServiceConfig{
LB: newString("round_robin"),
Methods: map[string]MethodConfig{
"/foo/Bar": {
WaitForReady: newBool(true),
},
},
},
false,
},
{
`{
"loadBalancingPolicy": 1,
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"waitForReady": false
}
]
}`,
nil,
true,
},
}
runParseTests(t, testcases)
}
func (s) TestParseWaitForReady(t *testing.T) {
testcases := []parseTestCase{
{
`{
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"waitForReady": true
}
]
}`,
&ServiceConfig{
Methods: map[string]MethodConfig{
"/foo/Bar": {
WaitForReady: newBool(true),
},
},
},
false,
},
{
`{
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"waitForReady": false
}
]
}`,
&ServiceConfig{
Methods: map[string]MethodConfig{
"/foo/Bar": {
WaitForReady: newBool(false),
},
},
},
false,
},
{
`{
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"waitForReady": fall
},
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"waitForReady": true
}
]
}`,
nil,
true,
},
}
runParseTests(t, testcases)
}
func (s) TestParseTimeOut(t *testing.T) {
testcases := []parseTestCase{
{
`{
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"timeout": "1s"
}
]
}`,
&ServiceConfig{
Methods: map[string]MethodConfig{
"/foo/Bar": {
Timeout: newDuration(time.Second),
},
},
},
false,
},
{
`{
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"timeout": "3c"
}
]
}`,
nil,
true,
},
{
`{
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"timeout": "3c"
},
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"timeout": "1s"
}
]
}`,
nil,
true,
},
}
runParseTests(t, testcases)
}
func (s) TestParseMsgSize(t *testing.T) {
testcases := []parseTestCase{
{
`{
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"maxRequestMessageBytes": 1024,
"maxResponseMessageBytes": 2048
}
]
}`,
&ServiceConfig{
Methods: map[string]MethodConfig{
"/foo/Bar": {
MaxReqSize: newInt(1024),
MaxRespSize: newInt(2048),
},
},
},
false,
},
{
`{
"methodConfig": [
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"maxRequestMessageBytes": "1024",
"maxResponseMessageBytes": "2048"
},
{
"name": [
{
"service": "foo",
"method": "Bar"
}
],
"maxRequestMessageBytes": 1024,
"maxResponseMessageBytes": 2048
}
]
}`,
nil,
true,
},
}
runParseTests(t, testcases)
}
func (s) TestParseDefaultMethodConfig(t *testing.T) {
dc := &ServiceConfig{
Methods: map[string]MethodConfig{
"": {WaitForReady: newBool(true)},
},
}
runParseTests(t, []parseTestCase{
{
`{
"methodConfig": [{
"name": [{}],
"waitForReady": true
}]
}`,
dc,
false,
},
{
`{
"methodConfig": [{
"name": [{"service": null}],
"waitForReady": true
}]
}`,
dc,
false,
},
{
`{
"methodConfig": [{
"name": [{"service": ""}],
"waitForReady": true
}]
}`,
dc,
false,
},
{
`{
"methodConfig": [{
"name": [{"method": "Bar"}],
"waitForReady": true
}]
}`,
nil,
true,
},
{
`{
"methodConfig": [{
"name": [{"service": "", "method": "Bar"}],
"waitForReady": true
}]
}`,
nil,
true,
},
})
}
func (s) TestParseMethodConfigDuplicatedName(t *testing.T) {
runParseTests(t, []parseTestCase{
{
`{
"methodConfig": [{
"name": [
{"service": "foo"},
{"service": "foo"}
],
"waitForReady": true
}]
}`, nil, true,
},
})
}
func (s) TestParseDuration(t *testing.T) {
testCases := []struct {
s *string
want *time.Duration
err bool
}{
{s: nil, want: nil},
{s: newString("1s"), want: newDuration(time.Second)},
{s: newString("-1s"), want: newDuration(-time.Second)},
{s: newString("1.1s"), want: newDuration(1100 * time.Millisecond)},
{s: newString("1.s"), want: newDuration(time.Second)},
{s: newString("1.0s"), want: newDuration(time.Second)},
{s: newString(".002s"), want: newDuration(2 * time.Millisecond)},
{s: newString(".002000s"), want: newDuration(2 * time.Millisecond)},
{s: newString("0.003s"), want: newDuration(3 * time.Millisecond)},
{s: newString("0.000004s"), want: newDuration(4 * time.Microsecond)},
{s: newString("5000.000000009s"), want: newDuration(5000*time.Second + 9*time.Nanosecond)},
{s: newString("4999.999999999s"), want: newDuration(5000*time.Second - time.Nanosecond)},
{s: newString("1"), err: true},
{s: newString("s"), err: true},
{s: newString(".s"), err: true},
{s: newString("1 s"), err: true},
{s: newString(" 1s"), err: true},
{s: newString("1ms"), err: true},
{s: newString("1.1.1s"), err: true},
{s: newString("Xs"), err: true},
{s: newString("as"), err: true},
{s: newString(".0000000001s"), err: true},
{s: newString(fmt.Sprint(math.MaxInt32) + "s"), want: newDuration(math.MaxInt32 * time.Second)},
{s: newString(fmt.Sprint(int64(math.MaxInt32)+1) + "s"), err: true},
}
for _, tc := range testCases {
got, err := parseDuration(tc.s)
if tc.err != (err != nil) ||
(got == nil) != (tc.want == nil) ||
(got != nil && *got != *tc.want) {
wantErr := "<nil>"
if tc.err {
wantErr = "<non-nil error>"
}
s := "<nil>"
if tc.s != nil {
s = `&"` + *tc.s + `"`
}
t.Errorf("parseDuration(%v) = %v, %v; want %v, %v", s, got, err, tc.want, wantErr)
}
}
}
func newBool(b bool) *bool {
return &b
}
func newDuration(b time.Duration) *time.Duration {
return &b
}
func newString(b string) *string {
return &b
}