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