github.com/linapex/ethereum-dpos-chinese@v0.0.0-20190316121959-b78b3a4a1ece/swarm/testutil/http.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  //</624342684806418432>
    11  
    12  //
    13  //
    14  //
    15  //
    16  //
    17  //
    18  //
    19  //
    20  //
    21  //
    22  //
    23  //
    24  //
    25  //
    26  //
    27  
    28  package testutil
    29  
    30  import (
    31  	"io/ioutil"
    32  	"net/http"
    33  	"net/http/httptest"
    34  	"os"
    35  	"testing"
    36  
    37  	"github.com/ethereum/go-ethereum/swarm/api"
    38  	"github.com/ethereum/go-ethereum/swarm/storage"
    39  	"github.com/ethereum/go-ethereum/swarm/storage/mru"
    40  )
    41  
    42  type TestServer interface {
    43  	ServeHTTP(http.ResponseWriter, *http.Request)
    44  }
    45  
    46  //
    47  type fakeTimeProvider struct {
    48  	currentTime uint64
    49  }
    50  
    51  func (f *fakeTimeProvider) Tick() {
    52  	f.currentTime++
    53  }
    54  
    55  func (f *fakeTimeProvider) Now() mru.Timestamp {
    56  	return mru.Timestamp{Time: f.currentTime}
    57  }
    58  
    59  func NewTestSwarmServer(t *testing.T, serverFunc func(*api.API) TestServer) *TestSwarmServer {
    60  	dir, err := ioutil.TempDir("", "swarm-storage-test")
    61  	if err != nil {
    62  		t.Fatal(err)
    63  	}
    64  	storeparams := storage.NewDefaultLocalStoreParams()
    65  	storeparams.DbCapacity = 5000000
    66  	storeparams.CacheCapacity = 5000
    67  	storeparams.Init(dir)
    68  	localStore, err := storage.NewLocalStore(storeparams, nil)
    69  	if err != nil {
    70  		os.RemoveAll(dir)
    71  		t.Fatal(err)
    72  	}
    73  	fileStore := storage.NewFileStore(localStore, storage.NewFileStoreParams())
    74  
    75  //
    76  	resourceDir, err := ioutil.TempDir("", "swarm-resource-test")
    77  	if err != nil {
    78  		t.Fatal(err)
    79  	}
    80  
    81  	fakeTimeProvider := &fakeTimeProvider{
    82  		currentTime: 42,
    83  	}
    84  	mru.TimestampProvider = fakeTimeProvider
    85  	rhparams := &mru.HandlerParams{}
    86  	rh, err := mru.NewTestHandler(resourceDir, rhparams)
    87  	if err != nil {
    88  		t.Fatal(err)
    89  	}
    90  
    91  	a := api.NewAPI(fileStore, nil, rh.Handler, nil)
    92  	srv := httptest.NewServer(serverFunc(a))
    93  	return &TestSwarmServer{
    94  		Server:            srv,
    95  		FileStore:         fileStore,
    96  		dir:               dir,
    97  		Hasher:            storage.MakeHashFunc(storage.DefaultHash)(),
    98  		timestampProvider: fakeTimeProvider,
    99  		cleanup: func() {
   100  			srv.Close()
   101  			rh.Close()
   102  			os.RemoveAll(dir)
   103  			os.RemoveAll(resourceDir)
   104  		},
   105  	}
   106  }
   107  
   108  type TestSwarmServer struct {
   109  	*httptest.Server
   110  	Hasher            storage.SwarmHash
   111  	FileStore         *storage.FileStore
   112  	dir               string
   113  	cleanup           func()
   114  	timestampProvider *fakeTimeProvider
   115  }
   116  
   117  func (t *TestSwarmServer) Close() {
   118  	t.cleanup()
   119  }
   120  
   121  func (t *TestSwarmServer) GetCurrentTime() mru.Timestamp {
   122  	return t.timestampProvider.Now()
   123  }
   124