rclone/fs/options_test.go

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package fs
import (
"fmt"
"net/http"
"testing"
"github.com/rclone/rclone/fs/hash"
"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)
}
}
func TestRangeOption(t *testing.T) {
opt := &RangeOption{Start: 1, End: 10}
var _ OpenOption = opt // check interface
assert.Equal(t, "RangeOption(1,10)", opt.String())
key, value := opt.Header()
assert.Equal(t, "Range", key)
assert.Equal(t, "bytes=1-10", value)
assert.Equal(t, true, opt.Mandatory())
opt = &RangeOption{Start: -1, End: 10}
assert.Equal(t, "RangeOption(-1,10)", opt.String())
key, value = opt.Header()
assert.Equal(t, "Range", key)
assert.Equal(t, "bytes=-10", value)
assert.Equal(t, true, opt.Mandatory())
opt = &RangeOption{Start: 1, End: -1}
assert.Equal(t, "RangeOption(1,-1)", opt.String())
key, value = opt.Header()
assert.Equal(t, "Range", key)
assert.Equal(t, "bytes=1-", value)
assert.Equal(t, true, opt.Mandatory())
opt = &RangeOption{Start: -1, End: -1}
assert.Equal(t, "RangeOption(-1,-1)", opt.String())
key, value = opt.Header()
assert.Equal(t, "Range", key)
assert.Equal(t, "bytes=-", value)
assert.Equal(t, true, opt.Mandatory())
}
func TestSeekOption(t *testing.T) {
opt := &SeekOption{Offset: 1}
var _ OpenOption = opt // check interface
assert.Equal(t, "SeekOption(1)", opt.String())
key, value := opt.Header()
assert.Equal(t, "Range", key)
assert.Equal(t, "bytes=1-", value)
assert.Equal(t, true, opt.Mandatory())
}
func TestHTTPOption(t *testing.T) {
opt := &HTTPOption{Key: "k", Value: "v"}
var _ OpenOption = opt // check interface
assert.Equal(t, `HTTPOption("k","v")`, opt.String())
key, value := opt.Header()
assert.Equal(t, "k", key)
assert.Equal(t, "v", value)
assert.Equal(t, false, opt.Mandatory())
}
func TestHashesOption(t *testing.T) {
opt := &HashesOption{hash.Set(hash.MD5 | hash.SHA1)}
var _ OpenOption = opt // check interface
assert.Equal(t, `HashesOption([MD5, SHA-1])`, opt.String())
key, value := opt.Header()
assert.Equal(t, "", key)
assert.Equal(t, "", value)
assert.Equal(t, false, opt.Mandatory())
}
func TestNullOption(t *testing.T) {
opt := NullOption{}
var _ OpenOption = opt // check interface
assert.Equal(t, "NullOption()", opt.String())
key, value := opt.Header()
assert.Equal(t, "", key)
assert.Equal(t, "", value)
assert.Equal(t, false, opt.Mandatory())
}
func TestFixRangeOptions(t *testing.T) {
for _, test := range []struct {
name string
in []OpenOption
size int64
want []OpenOption
}{
{
name: "Nil options",
in: nil,
want: nil,
},
{
name: "Empty options",
in: []OpenOption{},
want: []OpenOption{},
},
{
name: "Fetch a range with size=0",
in: []OpenOption{
&HTTPOption{Key: "a", Value: "1"},
&RangeOption{Start: 1, End: 10},
&HTTPOption{Key: "b", Value: "2"},
},
want: []OpenOption{
&HTTPOption{Key: "a", Value: "1"},
NullOption{},
&HTTPOption{Key: "b", Value: "2"},
},
size: 0,
},
{
name: "Fetch a range",
in: []OpenOption{
&HTTPOption{Key: "a", Value: "1"},
&RangeOption{Start: 1, End: 10},
&HTTPOption{Key: "b", Value: "2"},
},
want: []OpenOption{
&HTTPOption{Key: "a", Value: "1"},
&RangeOption{Start: 1, End: 10},
&HTTPOption{Key: "b", Value: "2"},
},
size: 100,
},
{
name: "Fetch to end",
in: []OpenOption{
&RangeOption{Start: 1, End: -1},
},
want: []OpenOption{
&RangeOption{Start: 1, End: -1},
},
size: 100,
},
{
name: "Fetch the last 10 bytes",
in: []OpenOption{
&RangeOption{Start: -1, End: 10},
},
want: []OpenOption{
&RangeOption{Start: 90, End: -1},
},
size: 100,
},
{
name: "Fetch with end bigger than size",
in: []OpenOption{
&RangeOption{Start: 10, End: 200},
},
want: []OpenOption{
&RangeOption{Start: 10, End: 99},
},
size: 100,
},
} {
FixRangeOption(test.in, test.size)
assert.Equal(t, test.want, test.in, test.name)
}
}
var testOpenOptions = []OpenOption{
&HTTPOption{Key: "a", Value: "1"},
&RangeOption{Start: 1, End: 10},
&HTTPOption{Key: "b", Value: "2"},
NullOption{},
&HashesOption{hash.Set(hash.MD5 | hash.SHA1)},
}
func TestOpenOptionAddHeaders(t *testing.T) {
m := map[string]string{}
want := map[string]string{
"a": "1",
"Range": "bytes=1-10",
"b": "2",
}
OpenOptionAddHeaders(testOpenOptions, m)
assert.Equal(t, want, m)
}
func TestOpenOptionHeaders(t *testing.T) {
want := map[string]string{
"a": "1",
"Range": "bytes=1-10",
"b": "2",
}
m := OpenOptionHeaders(testOpenOptions)
assert.Equal(t, want, m)
assert.Nil(t, OpenOptionHeaders([]OpenOption{}))
}
func TestOpenOptionAddHTTPHeaders(t *testing.T) {
headers := http.Header{}
want := http.Header{
"A": {"1"},
"Range": {"bytes=1-10"},
"B": {"2"},
}
OpenOptionAddHTTPHeaders(headers, testOpenOptions)
assert.Equal(t, want, headers)
}