mirror of
https://github.com/octoleo/restic.git
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377 lines
11 KiB
Go
377 lines
11 KiB
Go
// Copyright 2017 Google Inc. All Rights Reserved.
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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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package firestore
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import (
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"testing"
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"golang.org/x/net/context"
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"google.golang.org/grpc/status"
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pb "google.golang.org/genproto/googleapis/firestore/v1beta1"
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"github.com/golang/protobuf/ptypes/empty"
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"google.golang.org/api/iterator"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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)
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func TestRunTransaction(t *testing.T) {
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ctx := context.Background()
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const db = "projects/projectID/databases/(default)"
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tid := []byte{1}
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c, srv := newMock(t)
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beginReq := &pb.BeginTransactionRequest{Database: db}
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beginRes := &pb.BeginTransactionResponse{Transaction: tid}
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commitReq := &pb.CommitRequest{Database: db, Transaction: tid}
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// Empty transaction.
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(commitReq, &pb.CommitResponse{CommitTime: aTimestamp})
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err := c.RunTransaction(ctx, func(context.Context, *Transaction) error { return nil })
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if err != nil {
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t.Fatal(err)
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}
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// Transaction with read and write.
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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aDoc := &pb.Document{
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Name: db + "/documents/C/a",
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CreateTime: aTimestamp,
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UpdateTime: aTimestamp2,
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Fields: map[string]*pb.Value{"count": intval(1)},
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}
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srv.addRPC(
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&pb.GetDocumentRequest{
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Name: db + "/documents/C/a",
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ConsistencySelector: &pb.GetDocumentRequest_Transaction{tid},
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},
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aDoc,
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)
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aDoc2 := &pb.Document{
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Name: aDoc.Name,
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Fields: map[string]*pb.Value{"count": intval(2)},
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}
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srv.addRPC(
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&pb.CommitRequest{
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Database: db,
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Transaction: tid,
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Writes: []*pb.Write{{
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Operation: &pb.Write_Update{aDoc2},
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UpdateMask: &pb.DocumentMask{FieldPaths: []string{"count"}},
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CurrentDocument: &pb.Precondition{
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ConditionType: &pb.Precondition_Exists{true},
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},
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}},
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},
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&pb.CommitResponse{CommitTime: aTimestamp3},
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)
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err = c.RunTransaction(ctx, func(_ context.Context, tx *Transaction) error {
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docref := c.Collection("C").Doc("a")
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doc, err := tx.Get(docref)
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if err != nil {
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return err
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}
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count, err := doc.DataAt("count")
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if err != nil {
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return err
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}
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tx.Update(docref, []Update{{Path: "count", Value: count.(int64) + 1}})
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return nil
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})
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if err != nil {
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t.Fatal(err)
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}
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// Query
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(
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&pb.RunQueryRequest{
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Parent: db,
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QueryType: &pb.RunQueryRequest_StructuredQuery{
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&pb.StructuredQuery{
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From: []*pb.StructuredQuery_CollectionSelector{{CollectionId: "C"}},
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},
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},
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ConsistencySelector: &pb.RunQueryRequest_Transaction{tid},
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},
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[]interface{}{},
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)
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srv.addRPC(commitReq, &pb.CommitResponse{CommitTime: aTimestamp3})
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err = c.RunTransaction(ctx, func(_ context.Context, tx *Transaction) error {
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it := tx.Documents(c.Collection("C"))
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_, err := it.Next()
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if err != iterator.Done {
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return err
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}
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return nil
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})
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if err != nil {
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t.Fatal(err)
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}
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// Retry entire transaction.
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(commitReq, status.Errorf(codes.Aborted, ""))
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srv.addRPC(
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&pb.BeginTransactionRequest{
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Database: db,
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Options: &pb.TransactionOptions{
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Mode: &pb.TransactionOptions_ReadWrite_{
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&pb.TransactionOptions_ReadWrite{tid},
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},
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},
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},
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beginRes,
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)
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srv.addRPC(commitReq, &pb.CommitResponse{CommitTime: aTimestamp})
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err = c.RunTransaction(ctx, func(_ context.Context, tx *Transaction) error { return nil })
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestTransactionErrors(t *testing.T) {
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ctx := context.Background()
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const db = "projects/projectID/databases/(default)"
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c, srv := newMock(t)
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var (
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tid = []byte{1}
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internalErr = status.Errorf(codes.Internal, "so sad")
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beginReq = &pb.BeginTransactionRequest{
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Database: db,
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}
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beginRes = &pb.BeginTransactionResponse{Transaction: tid}
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getReq = &pb.GetDocumentRequest{
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Name: db + "/documents/C/a",
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ConsistencySelector: &pb.GetDocumentRequest_Transaction{tid},
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}
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rollbackReq = &pb.RollbackRequest{Database: db, Transaction: tid}
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commitReq = &pb.CommitRequest{Database: db, Transaction: tid}
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)
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// BeginTransaction has a permanent error.
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srv.addRPC(beginReq, internalErr)
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err := c.RunTransaction(ctx, func(context.Context, *Transaction) error { return nil })
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if grpc.Code(err) != codes.Internal {
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t.Errorf("got <%v>, want Internal", err)
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}
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// Get has a permanent error.
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get := func(_ context.Context, tx *Transaction) error {
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_, err := tx.Get(c.Doc("C/a"))
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return err
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}
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(getReq, internalErr)
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srv.addRPC(rollbackReq, &empty.Empty{})
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err = c.RunTransaction(ctx, get)
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if grpc.Code(err) != codes.Internal {
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t.Errorf("got <%v>, want Internal", err)
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}
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// Get has a permanent error, but the rollback fails. We still
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// return Get's error.
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(getReq, internalErr)
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srv.addRPC(rollbackReq, status.Errorf(codes.FailedPrecondition, ""))
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err = c.RunTransaction(ctx, get)
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if grpc.Code(err) != codes.Internal {
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t.Errorf("got <%v>, want Internal", err)
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}
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// Commit has a permanent error.
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(getReq, &pb.Document{
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Name: "projects/projectID/databases/(default)/documents/C/a",
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CreateTime: aTimestamp,
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UpdateTime: aTimestamp2,
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})
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srv.addRPC(commitReq, internalErr)
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err = c.RunTransaction(ctx, get)
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if grpc.Code(err) != codes.Internal {
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t.Errorf("got <%v>, want Internal", err)
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}
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// Read after write.
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(rollbackReq, &empty.Empty{})
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err = c.RunTransaction(ctx, func(_ context.Context, tx *Transaction) error {
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tx.Delete(c.Doc("C/a"))
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if _, err := tx.Get(c.Doc("C/a")); err != nil {
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return err
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}
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return nil
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})
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if err != errReadAfterWrite {
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t.Errorf("got <%v>, want <%v>", err, errReadAfterWrite)
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}
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// Read after write, with query.
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(rollbackReq, &empty.Empty{})
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err = c.RunTransaction(ctx, func(_ context.Context, tx *Transaction) error {
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tx.Delete(c.Doc("C/a"))
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it := tx.Documents(c.Collection("C").Select("x"))
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if _, err := it.Next(); err != iterator.Done {
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return err
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}
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return nil
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})
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if err != errReadAfterWrite {
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t.Errorf("got <%v>, want <%v>", err, errReadAfterWrite)
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}
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// Read after write fails even if the user ignores the read's error.
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(rollbackReq, &empty.Empty{})
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err = c.RunTransaction(ctx, func(_ context.Context, tx *Transaction) error {
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tx.Delete(c.Doc("C/a"))
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tx.Get(c.Doc("C/a"))
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return nil
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})
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if err != errReadAfterWrite {
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t.Errorf("got <%v>, want <%v>", err, errReadAfterWrite)
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}
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// Write in read-only transaction.
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srv.reset()
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srv.addRPC(
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&pb.BeginTransactionRequest{
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Database: db,
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Options: &pb.TransactionOptions{
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Mode: &pb.TransactionOptions_ReadOnly_{&pb.TransactionOptions_ReadOnly{}},
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},
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},
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beginRes,
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)
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srv.addRPC(rollbackReq, &empty.Empty{})
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err = c.RunTransaction(ctx, func(_ context.Context, tx *Transaction) error {
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return tx.Delete(c.Doc("C/a"))
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}, ReadOnly)
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if err != errWriteReadOnly {
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t.Errorf("got <%v>, want <%v>", err, errWriteReadOnly)
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}
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// Too many retries.
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(commitReq, status.Errorf(codes.Aborted, ""))
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srv.addRPC(
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&pb.BeginTransactionRequest{
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Database: db,
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Options: &pb.TransactionOptions{
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Mode: &pb.TransactionOptions_ReadWrite_{
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&pb.TransactionOptions_ReadWrite{tid},
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},
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},
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},
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beginRes,
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)
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srv.addRPC(commitReq, status.Errorf(codes.Aborted, ""))
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srv.addRPC(rollbackReq, &empty.Empty{})
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err = c.RunTransaction(ctx, func(context.Context, *Transaction) error { return nil },
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MaxAttempts(2))
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if grpc.Code(err) != codes.Aborted {
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t.Errorf("got <%v>, want Aborted", err)
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}
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// Nested transaction.
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(rollbackReq, &empty.Empty{})
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err = c.RunTransaction(ctx, func(ctx context.Context, tx *Transaction) error {
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return c.RunTransaction(ctx, func(context.Context, *Transaction) error { return nil })
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})
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if got, want := err, errNestedTransaction; got != want {
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t.Errorf("got <%v>, want <%v>", got, want)
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}
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// Non-transactional operation.
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dr := c.Doc("C/d")
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for i, op := range []func(ctx context.Context) error{
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func(ctx context.Context) error { _, err := c.GetAll(ctx, []*DocumentRef{dr}); return err },
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func(ctx context.Context) error { _, _, err := c.Collection("C").Add(ctx, testData); return err },
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func(ctx context.Context) error { _, err := dr.Get(ctx); return err },
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func(ctx context.Context) error { _, err := dr.Create(ctx, testData); return err },
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func(ctx context.Context) error { _, err := dr.Set(ctx, testData); return err },
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func(ctx context.Context) error { _, err := dr.Delete(ctx); return err },
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func(ctx context.Context) error {
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_, err := dr.Update(ctx, []Update{{FieldPath: []string{"*"}, Value: 1}})
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return err
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},
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func(ctx context.Context) error { it := c.Collections(ctx); _, err := it.Next(); return err },
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func(ctx context.Context) error { it := dr.Collections(ctx); _, err := it.Next(); return err },
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func(ctx context.Context) error {
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_, err := c.Batch().Set(dr, testData).Commit(ctx)
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return err
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},
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func(ctx context.Context) error {
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it := c.Collection("C").Documents(ctx)
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_, err := it.Next()
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return err
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},
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} {
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srv.reset()
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srv.addRPC(beginReq, beginRes)
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srv.addRPC(rollbackReq, &empty.Empty{})
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err = c.RunTransaction(ctx, func(ctx context.Context, _ *Transaction) error {
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return op(ctx)
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})
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if got, want := err, errNonTransactionalOp; got != want {
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t.Errorf("#%d: got <%v>, want <%v>", i, got, want)
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}
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}
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}
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func TestTransactionGetAll(t *testing.T) {
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c, srv := newMock(t)
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defer c.Close()
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const dbPath = "projects/projectID/databases/(default)"
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tid := []byte{1}
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beginReq := &pb.BeginTransactionRequest{Database: dbPath}
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beginRes := &pb.BeginTransactionResponse{Transaction: tid}
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srv.addRPC(beginReq, beginRes)
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req := &pb.BatchGetDocumentsRequest{
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Database: dbPath,
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Documents: []string{
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dbPath + "/documents/C/a",
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dbPath + "/documents/C/b",
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dbPath + "/documents/C/c",
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},
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ConsistencySelector: &pb.BatchGetDocumentsRequest_Transaction{tid},
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}
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err := c.RunTransaction(context.Background(), func(_ context.Context, tx *Transaction) error {
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testGetAll(t, c, srv, dbPath,
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func(drs []*DocumentRef) ([]*DocumentSnapshot, error) { return tx.GetAll(drs) },
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req)
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commitReq := &pb.CommitRequest{Database: dbPath, Transaction: tid}
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srv.addRPC(commitReq, &pb.CommitResponse{CommitTime: aTimestamp})
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return nil
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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