github.com/slspeek/camlistore_namedsearch@v0.0.0-20140519202248-ed6f70f7721a/pkg/blobserver/encrypt/encrypt_test.go (about)

     1  /*
     2  Copyright 2013 Google Inc.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8       http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package encrypt
    18  
    19  import (
    20  	"encoding/binary"
    21  	"fmt"
    22  	"io/ioutil"
    23  	"sync"
    24  	"testing"
    25  
    26  	"camlistore.org/pkg/blob"
    27  	"camlistore.org/pkg/sorted"
    28  	"camlistore.org/pkg/test"
    29  )
    30  
    31  var testKey = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
    32  
    33  type testStorage struct {
    34  	sto   *storage
    35  	blobs *test.Fetcher
    36  	meta  *test.Fetcher
    37  
    38  	mu sync.Mutex // guards iv
    39  	iv uint64
    40  }
    41  
    42  // fetchOrErrorString fetches br from sto and returns its body as a string.
    43  // If an error occurs the stringified error is returned, prefixed by "Error: ".
    44  func (ts *testStorage) fetchOrErrorString(br blob.Ref) string {
    45  	rc, _, err := ts.sto.Fetch(br)
    46  	var slurp []byte
    47  	if err == nil {
    48  		defer rc.Close()
    49  		slurp, err = ioutil.ReadAll(rc)
    50  	}
    51  	if err != nil {
    52  		return fmt.Sprintf("Error: %v", err)
    53  	}
    54  	return string(slurp)
    55  }
    56  
    57  func newTestStorage() *testStorage {
    58  	sto := &storage{
    59  		index: sorted.NewMemoryKeyValue(),
    60  	}
    61  	if err := sto.setKey(testKey); err != nil {
    62  		panic(err)
    63  	}
    64  	ts := &testStorage{
    65  		sto:   sto,
    66  		blobs: new(test.Fetcher),
    67  		meta:  new(test.Fetcher),
    68  	}
    69  	sto.blobs = ts.blobs
    70  	sto.meta = ts.meta
    71  	sto.testRandIV = func() []byte {
    72  		ts.mu.Lock()
    73  		defer ts.mu.Unlock()
    74  		var ret [16]byte
    75  		ts.iv++
    76  		binary.BigEndian.PutUint64(ret[8:], ts.iv)
    77  		return ret[:]
    78  	}
    79  	return ts
    80  }
    81  
    82  func TestEncryptBasic(t *testing.T) {
    83  	ts := newTestStorage()
    84  	const blobData = "foo"
    85  	tb := &test.Blob{blobData}
    86  	tb.MustUpload(t, ts.sto)
    87  
    88  	if got := ts.fetchOrErrorString(tb.BlobRef()); got != blobData {
    89  		t.Errorf("Fetching plaintext blobref %v = %v; want %q", tb.BlobRef(), got, blobData)
    90  	}
    91  
    92  	if g, w := fmt.Sprintf("%q", ts.meta.BlobrefStrings()), `["sha1-370c753f7158504d11d8941efff4129112f2f975"]`; g != w {
    93  		t.Errorf("meta blobs = %v; want %v", g, w)
    94  	}
    95  	if g, w := fmt.Sprintf("%q", ts.blobs.BlobrefStrings()), `["sha1-64f05b6b313162b01db154fcc7b83238eb36c343"]`; g != w {
    96  		t.Errorf("enc blobs = %v; want %v", g, w)
    97  	}
    98  
    99  	// Make sure plainBR doesn't show up anywhere.
   100  	plainBR := tb.BlobRef().String()
   101  	for _, br := range append(ts.meta.BlobrefStrings(), ts.blobs.BlobrefStrings()...) {
   102  		if br == plainBR {
   103  			t.Fatal("plaintext blobref found in storage")
   104  		}
   105  	}
   106  }