github.com/matrixorigin/matrixone@v0.7.0/pkg/vm/engine/tae/moengine/txn_wrapper_test.go (about)

     1  // Copyright 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  // http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package moengine
    16  
    17  import (
    18  	"testing"
    19  
    20  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/testutils"
    21  	"github.com/stretchr/testify/assert"
    22  )
    23  
    24  func TestTxnCleintNewWithSnapshot(t *testing.T) {
    25  	defer testutils.AfterTest(t)()
    26  	testutils.EnsureNoLeak(t)
    27  	tae := initDB(t, nil)
    28  	defer tae.Close()
    29  	e := NewEngine(tae)
    30  	txnClient := EngineToTxnClient(e)
    31  
    32  	txn, err := txnClient.New()
    33  	assert.Nil(t, err)
    34  	id := txn.Txn().ID
    35  
    36  	snapshot, err := txn.Snapshot()
    37  	assert.Nil(t, err)
    38  
    39  	txn2, err := txnClient.NewWithSnapshot(snapshot)
    40  	assert.Nil(t, err)
    41  	id2 := txn2.Txn().ID
    42  	assert.Equal(t, id2, id)
    43  }