118 lines
3 KiB
Go
118 lines
3 KiB
Go
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/*
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*
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* Copyright 2019 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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package internal
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import (
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"reflect"
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"strings"
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"testing"
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"unicode"
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corepb "github.com/envoyproxy/go-control-plane/envoy/api/v2/core"
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"github.com/google/go-cmp/cmp"
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"google.golang.org/grpc/internal/grpctest"
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)
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const ignorePrefix = "XXX_"
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type s struct {
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grpctest.Tester
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}
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func Test(t *testing.T) {
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grpctest.RunSubTests(t, s{})
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}
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func ignore(name string) bool {
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if !unicode.IsUpper([]rune(name)[0]) {
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return true
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}
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return strings.HasPrefix(name, ignorePrefix)
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}
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// A reflection based test to make sure internal.Locality contains all the
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// fields (expect for XXX_) from the proto message.
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func (s) TestLocalityMatchProtoMessage(t *testing.T) {
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want1 := make(map[string]string)
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for ty, i := reflect.TypeOf(LocalityID{}), 0; i < ty.NumField(); i++ {
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f := ty.Field(i)
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if ignore(f.Name) {
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continue
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}
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want1[f.Name] = f.Type.Name()
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}
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want2 := make(map[string]string)
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for ty, i := reflect.TypeOf(corepb.Locality{}), 0; i < ty.NumField(); i++ {
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f := ty.Field(i)
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if ignore(f.Name) {
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continue
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}
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want2[f.Name] = f.Type.Name()
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}
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if diff := cmp.Diff(want1, want2); diff != "" {
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t.Fatalf("internal type and proto message have different fields: (-got +want):\n%+v", diff)
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}
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}
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func TestLocalityToAndFromJSON(t *testing.T) {
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tests := []struct {
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name string
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localityID LocalityID
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str string
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wantErr bool
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}{
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{
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name: "3 fields",
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localityID: LocalityID{Region: "r:r", Zone: "z#z", SubZone: "s^s"},
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str: `{"region":"r:r","zone":"z#z","subZone":"s^s"}`,
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},
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{
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name: "2 fields",
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localityID: LocalityID{Region: "r:r", Zone: "z#z"},
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str: `{"region":"r:r","zone":"z#z"}`,
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},
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{
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name: "1 field",
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localityID: LocalityID{Region: "r:r"},
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str: `{"region":"r:r"}`,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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gotStr, err := tt.localityID.ToString()
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if err != nil {
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t.Errorf("failed to marshal LocalityID: %#v", tt.localityID)
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}
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if gotStr != tt.str {
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t.Errorf("%#v.String() = %q, want %q", tt.localityID, gotStr, tt.str)
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}
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gotID, err := LocalityIDFromString(tt.str)
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if (err != nil) != tt.wantErr {
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t.Errorf("LocalityIDFromString(%q) error = %v, wantErr %v", tt.str, err, tt.wantErr)
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return
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}
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if diff := cmp.Diff(gotID, tt.localityID); diff != "" {
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t.Errorf("LocalityIDFromString() got = %v, want %v, diff: %s", gotID, tt.localityID, diff)
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}
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})
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}
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}
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