mirror of https://github.com/perkeep/perkeep.git
104 lines
2.7 KiB
Go
104 lines
2.7 KiB
Go
/*
|
|
Copyright 2011 The Perkeep Authors
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package test
|
|
|
|
import (
|
|
"context"
|
|
"encoding/base64"
|
|
"fmt"
|
|
"io"
|
|
"math/rand"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"perkeep.org/pkg/blob"
|
|
"perkeep.org/pkg/blobserver"
|
|
)
|
|
|
|
// Blob is a utility class for unit tests.
|
|
type Blob struct {
|
|
Contents string // the contents of the blob
|
|
}
|
|
|
|
var randSrc = rand.New(rand.NewSource(time.Now().UnixNano()))
|
|
|
|
// RandomBlob returns a random blob with the provided number of bytes.
|
|
func RandomBlob(t *testing.T, size int64) *Blob {
|
|
contents := make([]byte, size)
|
|
_, err := io.ReadFull(randSrc, contents)
|
|
if err != nil {
|
|
t.Fatal("error reading from random source:", err)
|
|
}
|
|
|
|
return &Blob{
|
|
Contents: base64.StdEncoding.EncodeToString(contents)[:size],
|
|
}
|
|
}
|
|
|
|
func (tb *Blob) Blob() *blob.Blob {
|
|
s := tb.Contents
|
|
return blob.NewBlob(tb.BlobRef(), tb.Size(), func(ctx context.Context) ([]byte, error) {
|
|
return []byte(s), nil
|
|
})
|
|
}
|
|
|
|
func (tb *Blob) BlobRef() blob.Ref {
|
|
h := blob.NewHash()
|
|
io.WriteString(h, tb.Contents)
|
|
return blob.RefFromHash(h)
|
|
}
|
|
|
|
func (tb *Blob) SizedRef() blob.SizedRef {
|
|
return blob.SizedRef{Ref: tb.BlobRef(), Size: tb.Size()}
|
|
}
|
|
|
|
func (tb *Blob) BlobRefSlice() []blob.Ref {
|
|
return []blob.Ref{tb.BlobRef()}
|
|
}
|
|
|
|
func (tb *Blob) Size() uint32 {
|
|
// Check that it's not larger than a uint32 (possible with
|
|
// 64-bit ints). But while we're here, be more paranoid and
|
|
// check for over the default max blob size of 16 MB.
|
|
if len(tb.Contents) > 16<<20 {
|
|
panic(fmt.Sprintf("test blob of %d bytes is larger than max 16MB allowed in testing", len(tb.Contents)))
|
|
}
|
|
return uint32(len(tb.Contents))
|
|
}
|
|
|
|
func (tb *Blob) Reader() io.Reader {
|
|
return strings.NewReader(tb.Contents)
|
|
}
|
|
|
|
func (tb *Blob) AssertMatches(t *testing.T, sb blob.SizedRef) {
|
|
if sb.Size != tb.Size() {
|
|
t.Fatalf("Got size %d; expected %d", sb.Size, tb.Size())
|
|
}
|
|
if sb.Ref != tb.BlobRef() {
|
|
t.Fatalf("Got blob %q; expected %q", sb.Ref.String(), tb.BlobRef())
|
|
}
|
|
}
|
|
|
|
func (tb *Blob) MustUpload(t *testing.T, ds blobserver.BlobReceiver) {
|
|
sb, err := ds.ReceiveBlob(context.Background(), tb.BlobRef(), tb.Reader())
|
|
if err != nil {
|
|
t.Fatalf("failed to upload blob %v (%q): %v", tb.BlobRef(), tb.Contents, err)
|
|
}
|
|
tb.AssertMatches(t, sb) // TODO: better error reporting
|
|
}
|