github.com/cheng762/platon-go@v1.8.17-0.20190529111256-7deff2d7be26/swarm/testutil/http.go (about)

     1  // Copyright 2017 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 testutil
    18  
    19  import (
    20  	"io/ioutil"
    21  	"net/http"
    22  	"net/http/httptest"
    23  	"os"
    24  	"testing"
    25  
    26  	"github.com/PlatONnetwork/PlatON-Go/swarm/api"
    27  	"github.com/PlatONnetwork/PlatON-Go/swarm/storage"
    28  	"github.com/PlatONnetwork/PlatON-Go/swarm/storage/mru"
    29  )
    30  
    31  type TestServer interface {
    32  	ServeHTTP(http.ResponseWriter, *http.Request)
    33  }
    34  
    35  // simulated timeProvider
    36  type fakeTimeProvider struct {
    37  	currentTime uint64
    38  }
    39  
    40  func (f *fakeTimeProvider) Tick() {
    41  	f.currentTime++
    42  }
    43  
    44  func (f *fakeTimeProvider) Now() mru.Timestamp {
    45  	return mru.Timestamp{Time: f.currentTime}
    46  }
    47  
    48  func NewTestSwarmServer(t *testing.T, serverFunc func(*api.API) TestServer, resolver api.Resolver) *TestSwarmServer {
    49  	dir, err := ioutil.TempDir("", "swarm-storage-test")
    50  	if err != nil {
    51  		t.Fatal(err)
    52  	}
    53  	storeparams := storage.NewDefaultLocalStoreParams()
    54  	storeparams.DbCapacity = 5000000
    55  	storeparams.CacheCapacity = 5000
    56  	storeparams.Init(dir)
    57  	localStore, err := storage.NewLocalStore(storeparams, nil)
    58  	if err != nil {
    59  		os.RemoveAll(dir)
    60  		t.Fatal(err)
    61  	}
    62  	fileStore := storage.NewFileStore(localStore, storage.NewFileStoreParams())
    63  
    64  	// mutable resources test setup
    65  	resourceDir, err := ioutil.TempDir("", "swarm-resource-test")
    66  	if err != nil {
    67  		t.Fatal(err)
    68  	}
    69  
    70  	fakeTimeProvider := &fakeTimeProvider{
    71  		currentTime: 42,
    72  	}
    73  	mru.TimestampProvider = fakeTimeProvider
    74  	rhparams := &mru.HandlerParams{}
    75  	rh, err := mru.NewTestHandler(resourceDir, rhparams)
    76  	if err != nil {
    77  		t.Fatal(err)
    78  	}
    79  
    80  	a := api.NewAPI(fileStore, resolver, rh.Handler, nil)
    81  	srv := httptest.NewServer(serverFunc(a))
    82  	return &TestSwarmServer{
    83  		Server:            srv,
    84  		FileStore:         fileStore,
    85  		dir:               dir,
    86  		Hasher:            storage.MakeHashFunc(storage.DefaultHash)(),
    87  		timestampProvider: fakeTimeProvider,
    88  		cleanup: func() {
    89  			srv.Close()
    90  			rh.Close()
    91  			os.RemoveAll(dir)
    92  			os.RemoveAll(resourceDir)
    93  		},
    94  	}
    95  }
    96  
    97  type TestSwarmServer struct {
    98  	*httptest.Server
    99  	Hasher            storage.SwarmHash
   100  	FileStore         *storage.FileStore
   101  	dir               string
   102  	cleanup           func()
   103  	timestampProvider *fakeTimeProvider
   104  }
   105  
   106  func (t *TestSwarmServer) Close() {
   107  	t.cleanup()
   108  }
   109  
   110  func (t *TestSwarmServer) GetCurrentTime() mru.Timestamp {
   111  	return t.timestampProvider.Now()
   112  }