// Copyright 2017 The etcd 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 integration

import (
	"testing"
	"time"

	"golang.org/x/net/context"

	"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
	pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
	"github.com/coreos/etcd/pkg/testutil"
)

// TestV3AuthEmptyUserGet ensures that a get with an empty user will return an empty user error.
func TestV3AuthEmptyUserGet(t *testing.T) {
	defer testutil.AfterTest(t)
	clus := NewClusterV3(t, &ClusterConfig{Size: 1})
	defer clus.Terminate(t)

	ctx, cancel := context.WithTimeout(context.TODO(), 30*time.Second)
	defer cancel()

	api := toGRPC(clus.Client(0))
	auth := api.Auth

	if _, err := auth.UserAdd(ctx, &pb.AuthUserAddRequest{Name: "root", Password: "123"}); err != nil {
		t.Fatal(err)
	}
	if _, err := auth.RoleAdd(ctx, &pb.AuthRoleAddRequest{Name: "root"}); err != nil {
		t.Fatal(err)
	}
	if _, err := auth.UserGrantRole(ctx, &pb.AuthUserGrantRoleRequest{User: "root", Role: "root"}); err != nil {
		t.Fatal(err)
	}
	if _, err := auth.AuthEnable(ctx, &pb.AuthEnableRequest{}); err != nil {
		t.Fatal(err)
	}

	_, err := api.KV.Range(ctx, &pb.RangeRequest{Key: []byte("abc")})
	if !eqErrGRPC(err, rpctypes.ErrUserEmpty) {
		t.Fatalf("got %v, expected %v", err, rpctypes.ErrUserEmpty)
	}
}