github.com/linapex/ethereum-dpos-chinese@v0.0.0-20190316121959-b78b3a4a1ece/swarm/storage/mru/update_test.go (about)

     1  
     2  //<developer>
     3  //    <name>linapex 曹一峰</name>
     4  //    <email>linapex@163.com</email>
     5  //    <wx>superexc</wx>
     6  //    <qqgroup>128148617</qqgroup>
     7  //    <url>https://jsq.ink</url>
     8  //    <role>pku engineer</role>
     9  //    <date>2019-03-16 12:09:50</date>
    10  //</624342684143718400>
    11  
    12  package mru
    13  
    14  import (
    15  	"bytes"
    16  	"testing"
    17  )
    18  
    19  const serializedUpdateHex = "0x490034004f000000da070000fb0ed7efa696bdb0b54cd75554cc3117ffc891454317df7dd6fefad978e2f2fbf74a10ce8f26ffc8bfaa07c3031a34b2c61f517955e7deb1592daccf96c69cf000456c20717565206c6565206d7563686f207920616e6461206d7563686f2c207665206d7563686f20792073616265206d7563686f"
    20  const serializedUpdateMultihashHex = "0x490022004f000000da070000fb0ed7efa696bdb0b54cd75554cc3117ffc891454317df7dd6fefad978e2f2fbf74a10ce8f26ffc8bfaa07c3031a34b2c61f517955e7deb1592daccf96c69cf0011b200102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1c1e1f20"
    21  
    22  func getTestResourceUpdate() *resourceUpdate {
    23  	return &resourceUpdate{
    24  		updateHeader: *getTestUpdateHeader(false),
    25  		data:         []byte("El que lee mucho y anda mucho, ve mucho y sabe mucho"),
    26  	}
    27  }
    28  
    29  func getTestResourceUpdateMultihash() *resourceUpdate {
    30  	return &resourceUpdate{
    31  		updateHeader: *getTestUpdateHeader(true),
    32  		data:         []byte{0x1b, 0x20, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 28, 30, 31, 32},
    33  	}
    34  }
    35  
    36  func compareResourceUpdate(a, b *resourceUpdate) bool {
    37  	return compareUpdateHeader(&a.updateHeader, &b.updateHeader) &&
    38  		bytes.Equal(a.data, b.data)
    39  }
    40  
    41  func TestResourceUpdateSerializer(t *testing.T) {
    42  var serializedUpdateLength = len(serializedUpdateHex)/2 - 1 //
    43  	update := getTestResourceUpdate()
    44  	serializedUpdate := make([]byte, serializedUpdateLength)
    45  	if err := update.binaryPut(serializedUpdate); err != nil {
    46  		t.Fatal(err)
    47  	}
    48  	compareByteSliceToExpectedHex(t, "serializedUpdate", serializedUpdate, serializedUpdateHex)
    49  
    50  //
    51  	update.data = nil
    52  	if err := update.binaryPut(serializedUpdate); err == nil {
    53  		t.Fatal("Expected resourceUpdate.binaryPut to fail since update does not contain data")
    54  	}
    55  
    56  //
    57  	update.data = make([]byte, 10000)
    58  	if err := update.binaryPut(serializedUpdate); err == nil {
    59  		t.Fatal("Expected resourceUpdate.binaryPut to fail since update is too big")
    60  	}
    61  
    62  //
    63  	update.data = make([]byte, 1)
    64  	if err := update.binaryPut(serializedUpdate); err == nil {
    65  		t.Fatal("Expected resourceUpdate.binaryPut to fail since passed slice is not of the appropriate size")
    66  	}
    67  
    68  //
    69  var serializedUpdateMultihashLength = len(serializedUpdateMultihashHex)/2 - 1 //
    70  	update = getTestResourceUpdateMultihash()
    71  	serializedUpdate = make([]byte, serializedUpdateMultihashLength)
    72  	if err := update.binaryPut(serializedUpdate); err != nil {
    73  		t.Fatal(err)
    74  	}
    75  	compareByteSliceToExpectedHex(t, "serializedUpdate", serializedUpdate, serializedUpdateMultihashHex)
    76  
    77  //
    78  	update.data[1] = 79
    79  	if err := update.binaryPut(serializedUpdate); err == nil {
    80  		t.Fatal("Expected resourceUpdate.binaryPut to fail since data contains an invalid multihash")
    81  	}
    82  
    83  }
    84