mirror of
https://github.com/rclone/rclone.git
synced 2024-11-24 00:03:45 +08:00
fe52502f19
A Range request can never request 0 bytes however this change was made to make a clearer signal that the limit means read to the end. Add test and more documentation and fixup uses
61 lines
2.0 KiB
Go
61 lines
2.0 KiB
Go
package fs
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestParseRangeOption(t *testing.T) {
|
|
for _, test := range []struct {
|
|
in string
|
|
want RangeOption
|
|
err string
|
|
}{
|
|
{in: "", err: "doesn't start with bytes="},
|
|
{in: "bytes=1-2,3-4", err: "contains multiple ranges"},
|
|
{in: "bytes=100", err: "contains no '-'"},
|
|
{in: "bytes=x-8", err: "bad start"},
|
|
{in: "bytes=8-x", err: "bad end"},
|
|
{in: "bytes=1-2", want: RangeOption{Start: 1, End: 2}},
|
|
{in: "bytes=-123456789123456789", want: RangeOption{Start: -1, End: 123456789123456789}},
|
|
{in: "bytes=123456789123456789-", want: RangeOption{Start: 123456789123456789, End: -1}},
|
|
{in: "bytes= 1 - 2 ", want: RangeOption{Start: 1, End: 2}},
|
|
{in: "bytes=-", want: RangeOption{Start: -1, End: -1}},
|
|
{in: "bytes= - ", want: RangeOption{Start: -1, End: -1}},
|
|
} {
|
|
got, err := ParseRangeOption(test.in)
|
|
what := fmt.Sprintf("parsing %q", test.in)
|
|
if test.err != "" {
|
|
require.Contains(t, err.Error(), test.err)
|
|
require.Nil(t, got, what)
|
|
} else {
|
|
require.NoError(t, err, what)
|
|
assert.Equal(t, test.want, *got, what)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRangeOptionDecode(t *testing.T) {
|
|
for _, test := range []struct {
|
|
in RangeOption
|
|
size int64
|
|
wantOffset int64
|
|
wantLimit int64
|
|
}{
|
|
{in: RangeOption{Start: 1, End: 10}, size: 100, wantOffset: 1, wantLimit: 10},
|
|
{in: RangeOption{Start: 10, End: 10}, size: 100, wantOffset: 10, wantLimit: 1},
|
|
{in: RangeOption{Start: 10, End: 9}, size: 100, wantOffset: 10, wantLimit: 0},
|
|
{in: RangeOption{Start: 1, End: -1}, size: 100, wantOffset: 1, wantLimit: -1},
|
|
{in: RangeOption{Start: -1, End: 90}, size: 100, wantOffset: 10, wantLimit: -1},
|
|
{in: RangeOption{Start: -1, End: -1}, size: 100, wantOffset: 0, wantLimit: -1},
|
|
} {
|
|
gotOffset, gotLimit := test.in.Decode(test.size)
|
|
what := fmt.Sprintf("%+v size=%d", test.in, test.size)
|
|
assert.Equal(t, test.wantOffset, gotOffset, "offset "+what)
|
|
assert.Equal(t, test.wantLimit, gotLimit, "limit "+what)
|
|
}
|
|
}
|