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// Copyright 2017 Google LLC
//
// 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 datastore
import (
"context"
"testing"
"github.com/golang/protobuf/proto"
pb "google.golang.org/genproto/googleapis/datastore/v1"
)
func TestNewTransaction(t *testing.T) {
var got *pb.BeginTransactionRequest
client := &Client{
dataset: "project",
client: &fakeDatastoreClient{
beginTransaction: func(req *pb.BeginTransactionRequest) (*pb.BeginTransactionResponse, error) {
got = req
return &pb.BeginTransactionResponse{
Transaction: []byte("tid"),
}, nil
},
},
}
ctx := context.Background()
for _, test := range []struct {
settings *transactionSettings
want *pb.BeginTransactionRequest
}{
{
&transactionSettings{},
&pb.BeginTransactionRequest{ProjectId: "project"},
},
{
&transactionSettings{readOnly: true},
&pb.BeginTransactionRequest{
ProjectId: "project",
TransactionOptions: &pb.TransactionOptions{
Mode: &pb.TransactionOptions_ReadOnly_{ReadOnly: &pb.TransactionOptions_ReadOnly{}},
},
},
},
{
&transactionSettings{prevID: []byte("tid")},
&pb.BeginTransactionRequest{
ProjectId: "project",
TransactionOptions: &pb.TransactionOptions{
Mode: &pb.TransactionOptions_ReadWrite_{ReadWrite: &pb.TransactionOptions_ReadWrite{
PreviousTransaction: []byte("tid"),
},
},
},
},
},
} {
_, err := client.newTransaction(ctx, test.settings)
if err != nil {
t.Fatal(err)
}
if !proto.Equal(got, test.want) {
t.Errorf("%+v:\ngot %+v\nwant %+v", test.settings, got, test.want)
}
}
}
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