github.com/gobitfly/go-ethereum@v1.8.12/swarm/storage/localstore_test.go (about)

     1  // Copyright 2018 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package storage
    18  
    19  import (
    20  	"io/ioutil"
    21  	"os"
    22  	"testing"
    23  )
    24  
    25  var (
    26  	hashfunc = MakeHashFunc(DefaultHash)
    27  )
    28  
    29  // tests that the content address validator correctly checks the data
    30  // tests that resource update chunks are passed through content address validator
    31  // the test checking the resouce update validator internal correctness is found in resource_test.go
    32  func TestValidator(t *testing.T) {
    33  	// set up localstore
    34  	datadir, err := ioutil.TempDir("", "storage-testvalidator")
    35  	if err != nil {
    36  		t.Fatal(err)
    37  	}
    38  	defer os.RemoveAll(datadir)
    39  
    40  	params := NewDefaultLocalStoreParams()
    41  	params.Init(datadir)
    42  	store, err := NewLocalStore(params, nil)
    43  	if err != nil {
    44  		t.Fatal(err)
    45  	}
    46  
    47  	// check puts with no validators, both succeed
    48  	chunks := GenerateRandomChunks(259, 2)
    49  	goodChunk := chunks[0]
    50  	badChunk := chunks[1]
    51  	copy(badChunk.SData, goodChunk.SData)
    52  
    53  	PutChunks(store, goodChunk, badChunk)
    54  	if err := goodChunk.GetErrored(); err != nil {
    55  		t.Fatalf("expected no error on good content address chunk in spite of no validation, but got: %s", err)
    56  	}
    57  	if err := badChunk.GetErrored(); err != nil {
    58  		t.Fatalf("expected no error on bad content address chunk in spite of no validation, but got: %s", err)
    59  	}
    60  
    61  	// add content address validator and check puts
    62  	// bad should fail, good should pass
    63  	store.Validators = append(store.Validators, NewContentAddressValidator(hashfunc))
    64  	chunks = GenerateRandomChunks(DefaultChunkSize, 2)
    65  	goodChunk = chunks[0]
    66  	badChunk = chunks[1]
    67  	copy(badChunk.SData, goodChunk.SData)
    68  
    69  	PutChunks(store, goodChunk, badChunk)
    70  	if err := goodChunk.GetErrored(); err != nil {
    71  		t.Fatalf("expected no error on good content address chunk with content address validator only, but got: %s", err)
    72  	}
    73  	if err := badChunk.GetErrored(); err == nil {
    74  		t.Fatal("expected error on bad content address chunk with content address validator only, but got nil")
    75  	}
    76  
    77  	// append a validator that always denies
    78  	// bad should fail, good should pass,
    79  	var negV boolTestValidator
    80  	store.Validators = append(store.Validators, negV)
    81  
    82  	chunks = GenerateRandomChunks(DefaultChunkSize, 2)
    83  	goodChunk = chunks[0]
    84  	badChunk = chunks[1]
    85  	copy(badChunk.SData, goodChunk.SData)
    86  
    87  	PutChunks(store, goodChunk, badChunk)
    88  	if err := goodChunk.GetErrored(); err != nil {
    89  		t.Fatalf("expected no error on good content address chunk with content address validator only, but got: %s", err)
    90  	}
    91  	if err := badChunk.GetErrored(); err == nil {
    92  		t.Fatal("expected error on bad content address chunk with content address validator only, but got nil")
    93  	}
    94  
    95  	// append a validator that always approves
    96  	// all shall pass
    97  	var posV boolTestValidator = true
    98  	store.Validators = append(store.Validators, posV)
    99  
   100  	chunks = GenerateRandomChunks(DefaultChunkSize, 2)
   101  	goodChunk = chunks[0]
   102  	badChunk = chunks[1]
   103  	copy(badChunk.SData, goodChunk.SData)
   104  
   105  	PutChunks(store, goodChunk, badChunk)
   106  	if err := goodChunk.GetErrored(); err != nil {
   107  		t.Fatalf("expected no error on good content address chunk with content address validator only, but got: %s", err)
   108  	}
   109  	if err := badChunk.GetErrored(); err != nil {
   110  		t.Fatalf("expected no error on bad content address chunk with content address validator only, but got: %s", err)
   111  	}
   112  }
   113  
   114  type boolTestValidator bool
   115  
   116  func (self boolTestValidator) Validate(addr Address, data []byte) bool {
   117  	return bool(self)
   118  }