github.com/stffabi/git-lfs@v2.3.5-0.20180214015214-8eeaa8d88902+incompatible/git/odb/memory_storer_test.go (about)

     1  package odb
     2  
     3  import (
     4  	"bytes"
     5  	"encoding/hex"
     6  	"io"
     7  	"io/ioutil"
     8  	"os"
     9  	"strings"
    10  	"testing"
    11  
    12  	"github.com/stretchr/testify/assert"
    13  )
    14  
    15  func TestMemoryStorerIncludesGivenEntries(t *testing.T) {
    16  	sha := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
    17  	hex, err := hex.DecodeString(sha)
    18  
    19  	assert.Nil(t, err)
    20  
    21  	ms := newMemoryStorer(map[string]io.ReadWriter{
    22  		sha: bytes.NewBuffer([]byte{0x1}),
    23  	})
    24  
    25  	buf, err := ms.Open(hex)
    26  	assert.Nil(t, err)
    27  
    28  	contents, err := ioutil.ReadAll(buf)
    29  	assert.Nil(t, err)
    30  	assert.Equal(t, []byte{0x1}, contents)
    31  }
    32  
    33  func TestMemoryStorerAcceptsNilEntries(t *testing.T) {
    34  	ms := newMemoryStorer(nil)
    35  
    36  	assert.NotNil(t, ms)
    37  	assert.Equal(t, 0, len(ms.fs))
    38  }
    39  
    40  func TestMemoryStorerDoesntOpenMissingEntries(t *testing.T) {
    41  	sha := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
    42  
    43  	hex, err := hex.DecodeString(sha)
    44  	assert.Nil(t, err)
    45  
    46  	ms := newMemoryStorer(nil)
    47  
    48  	f, err := ms.Open(hex)
    49  	assert.Equal(t, os.ErrNotExist, err)
    50  	assert.Nil(t, f)
    51  }
    52  
    53  func TestMemoryStorerStoresNewEntries(t *testing.T) {
    54  	hex, err := hex.DecodeString("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
    55  	assert.Nil(t, err)
    56  
    57  	ms := newMemoryStorer(nil)
    58  
    59  	assert.Equal(t, 0, len(ms.fs))
    60  
    61  	_, err = ms.Store(hex, strings.NewReader("hello"))
    62  	assert.Nil(t, err)
    63  	assert.Equal(t, 1, len(ms.fs))
    64  
    65  	got, err := ms.Open(hex)
    66  	assert.Nil(t, err)
    67  
    68  	contents, err := ioutil.ReadAll(got)
    69  	assert.Nil(t, err)
    70  	assert.Equal(t, "hello", string(contents))
    71  }
    72  
    73  func TestMemoryStorerStoresExistingEntries(t *testing.T) {
    74  	hex, err := hex.DecodeString("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
    75  	assert.Nil(t, err)
    76  
    77  	ms := newMemoryStorer(nil)
    78  
    79  	assert.Equal(t, 0, len(ms.fs))
    80  
    81  	_, err = ms.Store(hex, new(bytes.Buffer))
    82  	assert.Nil(t, err)
    83  	assert.Equal(t, 1, len(ms.fs))
    84  
    85  	n, err := ms.Store(hex, new(bytes.Buffer))
    86  	assert.Nil(t, err)
    87  	assert.EqualValues(t, 0, n)
    88  }