github.com/adnan-c/fabric_e2e_couchdb@v0.6.1-preview.0.20170228180935-21ce6b23cf91/protos/utils/blockutils_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  // This package provides unit tests for blocks
    18  package utils_test
    19  
    20  import (
    21  	"testing"
    22  
    23  	configtxtest "github.com/hyperledger/fabric/common/configtx/test"
    24  	"github.com/hyperledger/fabric/protos/common"
    25  	cb "github.com/hyperledger/fabric/protos/common"
    26  	"github.com/hyperledger/fabric/protos/utils"
    27  )
    28  
    29  func TestGetChainIDFromBlock(t *testing.T) {
    30  	var err error
    31  	var gb *common.Block
    32  	var cid string
    33  
    34  	testChainID := "myuniquetestchainid"
    35  
    36  	gb, err = configtxtest.MakeGenesisBlock(testChainID)
    37  	if err != nil {
    38  		t.Fatalf("failed to create test configuration block: %s", err)
    39  	}
    40  	cid, err = utils.GetChainIDFromBlock(gb)
    41  	if err != nil {
    42  		t.Fatalf("failed to get chain ID from block: %s", err)
    43  	}
    44  	if testChainID != cid {
    45  		t.Fatalf("failed with wrong chain ID: Actual=%s; Got=%s", testChainID, cid)
    46  	}
    47  
    48  	badBlock := gb
    49  	badBlock.Data = nil
    50  	_, err = utils.GetChainIDFromBlock(badBlock)
    51  	// We should get error
    52  	if err == nil {
    53  		t.Fatalf("error is expected -- the block must not be marshallable")
    54  	}
    55  }
    56  
    57  func TestGetBlockFromBlockBytes(t *testing.T) {
    58  	testChainID := "myuniquetestchainid"
    59  	gb, err := configtxtest.MakeGenesisBlock(testChainID)
    60  	if err != nil {
    61  		t.Fatalf("failed to create test configuration block: %s", err)
    62  	}
    63  	blockBytes, err := utils.Marshal(gb)
    64  	if err != nil {
    65  		t.Fatalf("failed to marshal block: %s", err)
    66  	}
    67  	_, err = utils.GetBlockFromBlockBytes(blockBytes)
    68  	if err != nil {
    69  		t.Fatalf("failed to get block from block bytes: %s", err)
    70  	}
    71  }
    72  
    73  func TestGetMetadataFromNewBlock(t *testing.T) {
    74  	block := common.NewBlock(0, nil)
    75  	md, err := utils.GetMetadataFromBlock(block, cb.BlockMetadataIndex_ORDERER)
    76  	if err != nil {
    77  		t.Fatal("Expected no error when extracting metadata from new block")
    78  	}
    79  	if md.Value != nil {
    80  		t.Fatal("Expected metadata field value to be nil, got", md.Value)
    81  	}
    82  	if len(md.Value) > 0 {
    83  		t.Fatal("Expected length of metadata field value to be 0, got", len(md.Value))
    84  	}
    85  
    86  }