You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
156 lines
3.0 KiB
156 lines
3.0 KiB
package filer
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"math"
|
|
"strconv"
|
|
"sync"
|
|
"testing"
|
|
)
|
|
|
|
type mockChunkCache struct {
|
|
}
|
|
|
|
func (m *mockChunkCache) GetChunk(fileId string, minSize uint64) (data []byte) {
|
|
x, _ := strconv.Atoi(fileId)
|
|
data = make([]byte, minSize)
|
|
for i := 0; i < int(minSize); i++ {
|
|
data[i] = byte(x)
|
|
}
|
|
return data
|
|
}
|
|
func (m *mockChunkCache) SetChunk(fileId string, data []byte) {
|
|
}
|
|
|
|
func TestReaderAt(t *testing.T) {
|
|
|
|
visibles := []VisibleInterval{
|
|
{
|
|
start: 1,
|
|
stop: 2,
|
|
fileId: "1",
|
|
chunkSize: 9,
|
|
},
|
|
{
|
|
start: 3,
|
|
stop: 4,
|
|
fileId: "3",
|
|
chunkSize: 1,
|
|
},
|
|
{
|
|
start: 5,
|
|
stop: 6,
|
|
fileId: "5",
|
|
chunkSize: 2,
|
|
},
|
|
{
|
|
start: 7,
|
|
stop: 9,
|
|
fileId: "7",
|
|
chunkSize: 2,
|
|
},
|
|
{
|
|
start: 9,
|
|
stop: 10,
|
|
fileId: "9",
|
|
chunkSize: 2,
|
|
},
|
|
}
|
|
|
|
readerAt := &ChunkReadAt{
|
|
chunkViews: ViewFromVisibleIntervals(visibles, 0, math.MaxInt64),
|
|
lookupFileId: nil,
|
|
readerLock: sync.Mutex{},
|
|
fileSize: 10,
|
|
chunkCache: &mockChunkCache{},
|
|
}
|
|
|
|
testReadAt(t, readerAt, 0, 10, 10, io.EOF)
|
|
testReadAt(t, readerAt, 0, 12, 10, io.EOF)
|
|
testReadAt(t, readerAt, 2, 8, 8, io.EOF)
|
|
testReadAt(t, readerAt, 3, 6, 6, nil)
|
|
|
|
}
|
|
|
|
func testReadAt(t *testing.T, readerAt *ChunkReadAt, offset int64, size int, expected int, expectedErr error) {
|
|
data := make([]byte, size)
|
|
n, err := readerAt.ReadAt(data, offset)
|
|
|
|
for _, d := range data {
|
|
fmt.Printf("%x", d)
|
|
}
|
|
fmt.Println()
|
|
|
|
if expected != n {
|
|
t.Errorf("unexpected read size: %d, expect: %d", n, expected)
|
|
}
|
|
if err != expectedErr {
|
|
t.Errorf("unexpected read error: %v, expect: %v", err, expectedErr)
|
|
}
|
|
|
|
}
|
|
|
|
func TestReaderAt0(t *testing.T) {
|
|
|
|
visibles := []VisibleInterval{
|
|
{
|
|
start: 2,
|
|
stop: 5,
|
|
fileId: "1",
|
|
chunkSize: 9,
|
|
},
|
|
{
|
|
start: 7,
|
|
stop: 9,
|
|
fileId: "2",
|
|
chunkSize: 9,
|
|
},
|
|
}
|
|
|
|
readerAt := &ChunkReadAt{
|
|
chunkViews: ViewFromVisibleIntervals(visibles, 0, math.MaxInt64),
|
|
lookupFileId: nil,
|
|
readerLock: sync.Mutex{},
|
|
fileSize: 10,
|
|
chunkCache: &mockChunkCache{},
|
|
}
|
|
|
|
testReadAt(t, readerAt, 0, 10, 10, io.EOF)
|
|
testReadAt(t, readerAt, 3, 16, 7, io.EOF)
|
|
testReadAt(t, readerAt, 3, 5, 5, nil)
|
|
|
|
testReadAt(t, readerAt, 11, 5, 0, io.EOF)
|
|
testReadAt(t, readerAt, 10, 5, 0, io.EOF)
|
|
|
|
}
|
|
|
|
func TestReaderAt1(t *testing.T) {
|
|
|
|
visibles := []VisibleInterval{
|
|
{
|
|
start: 2,
|
|
stop: 5,
|
|
fileId: "1",
|
|
chunkSize: 9,
|
|
},
|
|
}
|
|
|
|
readerAt := &ChunkReadAt{
|
|
chunkViews: ViewFromVisibleIntervals(visibles, 0, math.MaxInt64),
|
|
lookupFileId: nil,
|
|
readerLock: sync.Mutex{},
|
|
fileSize: 20,
|
|
chunkCache: &mockChunkCache{},
|
|
}
|
|
|
|
testReadAt(t, readerAt, 0, 20, 20, io.EOF)
|
|
testReadAt(t, readerAt, 1, 7, 7, nil)
|
|
testReadAt(t, readerAt, 0, 1, 1, nil)
|
|
testReadAt(t, readerAt, 18, 4, 2, io.EOF)
|
|
testReadAt(t, readerAt, 12, 4, 4, nil)
|
|
testReadAt(t, readerAt, 4, 20, 16, io.EOF)
|
|
testReadAt(t, readerAt, 4, 10, 10, nil)
|
|
testReadAt(t, readerAt, 1, 10, 10, nil)
|
|
|
|
}
|