1 package profile
2
3 import (
4 "reflect"
5 "testing"
6 )
7
8 func TestPackedEncoding(t *testing.T) {
9
10 type testcase struct {
11 uint64s []uint64
12 int64s []int64
13 encoded []byte
14 }
15 for i, tc := range []testcase{
16 {
17 []uint64{0, 1, 10, 100, 1000, 10000},
18 []int64{1000, 0, 1000},
19 []byte{10, 8, 0, 1, 10, 100, 232, 7, 144, 78, 18, 5, 232, 7, 0, 232, 7},
20 },
21 {
22 []uint64{10000},
23 nil,
24 []byte{8, 144, 78},
25 },
26 {
27 nil,
28 []int64{-10000},
29 []byte{16, 240, 177, 255, 255, 255, 255, 255, 255, 255, 1},
30 },
31 } {
32 source := &packedInts{tc.uint64s, tc.int64s}
33 if got, want := marshal(source), tc.encoded; !reflect.DeepEqual(got, want) {
34 t.Errorf("failed encode %d, got %v, want %v", i, got, want)
35 }
36
37 dest := new(packedInts)
38 if err := unmarshal(tc.encoded, dest); err != nil {
39 t.Errorf("failed decode %d: %v", i, err)
40 continue
41 }
42 if got, want := dest.uint64s, tc.uint64s; !reflect.DeepEqual(got, want) {
43 t.Errorf("failed decode uint64s %d, got %v, want %v", i, got, want)
44 }
45 if got, want := dest.int64s, tc.int64s; !reflect.DeepEqual(got, want) {
46 t.Errorf("failed decode int64s %d, got %v, want %v", i, got, want)
47 }
48 }
49 }
50
51 type packedInts struct {
52 uint64s []uint64
53 int64s []int64
54 }
55
56 func (u *packedInts) decoder() []decoder {
57 return []decoder{
58 nil,
59 func(b *buffer, m message) error { return decodeUint64s(b, &m.(*packedInts).uint64s) },
60 func(b *buffer, m message) error { return decodeInt64s(b, &m.(*packedInts).int64s) },
61 }
62 }
63
64 func (u *packedInts) encode(b *buffer) {
65 encodeUint64s(b, 1, u.uint64s)
66 encodeInt64s(b, 2, u.int64s)
67 }
68
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