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