github.com/yinchengtsinghua/golang-Eos-dpos-Ethereum@v0.0.0-20190121132951-92cc4225ed8e/swarm/testutil/http.go (about)

     1  
     2  //此源码被清华学神尹成大魔王专业翻译分析并修改
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     9  //
    10  //
    11  //
    12  //
    13  //
    14  //
    15  //
    16  //
    17  //
    18  //
    19  //
    20  //
    21  //
    22  //
    23  //
    24  
    25  package testutil
    26  
    27  import (
    28  	"io/ioutil"
    29  	"net/http"
    30  	"net/http/httptest"
    31  	"os"
    32  	"testing"
    33  
    34  	"github.com/ethereum/go-ethereum/swarm/api"
    35  	"github.com/ethereum/go-ethereum/swarm/storage"
    36  	"github.com/ethereum/go-ethereum/swarm/storage/mru"
    37  )
    38  
    39  type TestServer interface {
    40  	ServeHTTP(http.ResponseWriter, *http.Request)
    41  }
    42  
    43  //
    44  type fakeTimeProvider struct {
    45  	currentTime uint64
    46  }
    47  
    48  func (f *fakeTimeProvider) Tick() {
    49  	f.currentTime++
    50  }
    51  
    52  func (f *fakeTimeProvider) Now() mru.Timestamp {
    53  	return mru.Timestamp{Time: f.currentTime}
    54  }
    55  
    56  func NewTestSwarmServer(t *testing.T, serverFunc func(*api.API) TestServer) *TestSwarmServer {
    57  	dir, err := ioutil.TempDir("", "swarm-storage-test")
    58  	if err != nil {
    59  		t.Fatal(err)
    60  	}
    61  	storeparams := storage.NewDefaultLocalStoreParams()
    62  	storeparams.DbCapacity = 5000000
    63  	storeparams.CacheCapacity = 5000
    64  	storeparams.Init(dir)
    65  	localStore, err := storage.NewLocalStore(storeparams, nil)
    66  	if err != nil {
    67  		os.RemoveAll(dir)
    68  		t.Fatal(err)
    69  	}
    70  	fileStore := storage.NewFileStore(localStore, storage.NewFileStoreParams())
    71  
    72  //
    73  	resourceDir, err := ioutil.TempDir("", "swarm-resource-test")
    74  	if err != nil {
    75  		t.Fatal(err)
    76  	}
    77  
    78  	fakeTimeProvider := &fakeTimeProvider{
    79  		currentTime: 42,
    80  	}
    81  	mru.TimestampProvider = fakeTimeProvider
    82  	rhparams := &mru.HandlerParams{}
    83  	rh, err := mru.NewTestHandler(resourceDir, rhparams)
    84  	if err != nil {
    85  		t.Fatal(err)
    86  	}
    87  
    88  	a := api.NewAPI(fileStore, nil, rh.Handler, nil)
    89  	srv := httptest.NewServer(serverFunc(a))
    90  	return &TestSwarmServer{
    91  		Server:            srv,
    92  		FileStore:         fileStore,
    93  		dir:               dir,
    94  		Hasher:            storage.MakeHashFunc(storage.DefaultHash)(),
    95  		timestampProvider: fakeTimeProvider,
    96  		cleanup: func() {
    97  			srv.Close()
    98  			rh.Close()
    99  			os.RemoveAll(dir)
   100  			os.RemoveAll(resourceDir)
   101  		},
   102  	}
   103  }
   104  
   105  type TestSwarmServer struct {
   106  	*httptest.Server
   107  	Hasher            storage.SwarmHash
   108  	FileStore         *storage.FileStore
   109  	dir               string
   110  	cleanup           func()
   111  	timestampProvider *fakeTimeProvider
   112  }
   113  
   114  func (t *TestSwarmServer) Close() {
   115  	t.cleanup()
   116  }
   117  
   118  func (t *TestSwarmServer) GetCurrentTime() mru.Timestamp {
   119  	return t.timestampProvider.Now()
   120  }