github.com/kchristidis/fabric@v1.0.4-0.20171028114726-837acd08cde1/orderer/ledger/file/factory_test.go (about)

     1  /*
     2  Copyright IBM Corp. 2016 All Rights Reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8                   http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package fileledger
    18  
    19  import (
    20  	"fmt"
    21  	"io/ioutil"
    22  	"testing"
    23  
    24  	"github.com/hyperledger/fabric/common/configtx/tool/provisional"
    25  	"github.com/hyperledger/fabric/common/ledger/blkstorage"
    26  	"github.com/hyperledger/fabric/orderer/ledger"
    27  	"github.com/stretchr/testify/assert"
    28  )
    29  
    30  type mockBlockStoreProvider struct {
    31  	blockstore blkstorage.BlockStore
    32  	exists     bool
    33  	list       []string
    34  	error      error
    35  }
    36  
    37  func (mbsp *mockBlockStoreProvider) CreateBlockStore(ledgerid string) (blkstorage.BlockStore, error) {
    38  	return mbsp.blockstore, mbsp.error
    39  }
    40  
    41  func (mbsp *mockBlockStoreProvider) OpenBlockStore(ledgerid string) (blkstorage.BlockStore, error) {
    42  	return mbsp.blockstore, mbsp.error
    43  }
    44  
    45  func (mbsp *mockBlockStoreProvider) Exists(ledgerid string) (bool, error) {
    46  	return mbsp.exists, mbsp.error
    47  }
    48  
    49  func (mbsp *mockBlockStoreProvider) List() ([]string, error) {
    50  	return mbsp.list, mbsp.error
    51  }
    52  
    53  func (mbsp *mockBlockStoreProvider) Close() {
    54  }
    55  
    56  func TestBlockstoreProviderError(t *testing.T) {
    57  	flf := &fileLedgerFactory{
    58  		blkstorageProvider: &mockBlockStoreProvider{error: fmt.Errorf("blockstorage provider error")},
    59  		ledgers:            make(map[string]ledger.ReadWriter),
    60  	}
    61  	assert.Panics(
    62  		t,
    63  		func() { flf.ChainIDs() },
    64  		"Expected ChainIDs to panic if storage provider cannot list chain IDs")
    65  
    66  	_, err := flf.GetOrCreate("foo")
    67  	assert.Error(t, err, "Expected GetOrCreate to return error if blockstorage provider cannot open")
    68  	assert.Empty(t, flf.ledgers, "Expected no new ledger is created")
    69  }
    70  
    71  func TestMultiReinitialization(t *testing.T) {
    72  	dir, err := ioutil.TempDir("", "hyperledger_fabric")
    73  	assert.NoError(t, err, "Error creating temp dir: %s", err)
    74  
    75  	flf := New(dir)
    76  	_, err = flf.GetOrCreate(provisional.TestChainID)
    77  	assert.NoError(t, err, "Error GetOrCreate chain")
    78  	assert.Equal(t, 1, len(flf.ChainIDs()), "Expected 1 chain")
    79  	flf.Close()
    80  
    81  	flf = New(dir)
    82  	_, err = flf.GetOrCreate("foo")
    83  	assert.NoError(t, err, "Error creating chain")
    84  	assert.Equal(t, 2, len(flf.ChainIDs()), "Expected chain to be recovered")
    85  	flf.Close()
    86  
    87  	flf = New(dir)
    88  	_, err = flf.GetOrCreate("bar")
    89  	assert.NoError(t, err, "Error creating chain")
    90  	assert.Equal(t, 3, len(flf.ChainIDs()), "Expected chain to be recovered")
    91  	flf.Close()
    92  }