| /* |
| * |
| * Copyright 2020 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 weightedtarget |
| |
| import ( |
| "testing" |
| |
| "github.com/google/go-cmp/cmp" |
| "google.golang.org/grpc/balancer" |
| _ "google.golang.org/grpc/balancer/grpclb" |
| "google.golang.org/grpc/balancer/roundrobin" |
| internalserviceconfig "google.golang.org/grpc/internal/serviceconfig" |
| ) |
| |
| const ( |
| testJSONConfig = `{ |
| "targets": { |
| "cluster_1": { |
| "weight": 75, |
| "childPolicy": [{ |
| "grpclb": { |
| "childPolicy": [{"pick_first":{}}], |
| "targetName": "foo-service" |
| } |
| }] |
| }, |
| "cluster_2": { |
| "weight": 25, |
| "childPolicy": [{"round_robin": ""}] |
| } |
| } |
| }` |
| ) |
| |
| var ( |
| grpclbConfigParser = balancer.Get("grpclb").(balancer.ConfigParser) |
| grpclbConfigJSON = `{"childPolicy": [{"pick_first":{}}], "targetName": "foo-service"}` |
| grpclbConfig, _ = grpclbConfigParser.ParseConfig([]byte(grpclbConfigJSON)) |
| ) |
| |
| func (s) TestParseConfig(t *testing.T) { |
| tests := []struct { |
| name string |
| js string |
| want *LBConfig |
| wantErr bool |
| }{ |
| { |
| name: "empty json", |
| js: "", |
| want: nil, |
| wantErr: true, |
| }, |
| { |
| name: "OK", |
| js: testJSONConfig, |
| want: &LBConfig{ |
| Targets: map[string]Target{ |
| "cluster_1": { |
| Weight: 75, |
| ChildPolicy: &internalserviceconfig.BalancerConfig{ |
| Name: "grpclb", |
| Config: grpclbConfig, |
| }, |
| }, |
| "cluster_2": { |
| Weight: 25, |
| ChildPolicy: &internalserviceconfig.BalancerConfig{ |
| Name: roundrobin.Name, |
| }, |
| }, |
| }, |
| }, |
| wantErr: false, |
| }, |
| } |
| for _, tt := range tests { |
| t.Run(tt.name, func(t *testing.T) { |
| got, err := parseConfig([]byte(tt.js)) |
| if (err != nil) != tt.wantErr { |
| t.Fatalf("parseConfig() error = %v, wantErr %v", err, tt.wantErr) |
| } |
| if !cmp.Equal(got, tt.want) { |
| t.Errorf("parseConfig() got unexpected result, diff: %v", cmp.Diff(got, tt.want)) |
| } |
| }) |
| } |
| } |