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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package profile
import (
"reflect"
"testing"
)
func TestPackedEncoding(t *testing.T) {
type testcase struct {
uint64s []uint64
int64s []int64
encoded []byte
}
for i, tc := range []testcase{
{
[]uint64{0, 1, 10, 100, 1000, 10000},
[]int64{1000, 0, 1000},
[]byte{10, 8, 0, 1, 10, 100, 232, 7, 144, 78, 18, 5, 232, 7, 0, 232, 7},
},
{
[]uint64{10000},
nil,
[]byte{8, 144, 78},
},
{
nil,
[]int64{-10000},
[]byte{16, 240, 177, 255, 255, 255, 255, 255, 255, 255, 1},
},
} {
source := &packedInts{tc.uint64s, tc.int64s}
if got, want := marshal(source), tc.encoded; !reflect.DeepEqual(got, want) {
t.Errorf("failed encode %d, got %v, want %v", i, got, want)
}
dest := new(packedInts)
if err := unmarshal(tc.encoded, dest); err != nil {
t.Errorf("failed decode %d: %v", i, err)
continue
}
if got, want := dest.uint64s, tc.uint64s; !reflect.DeepEqual(got, want) {
t.Errorf("failed decode uint64s %d, got %v, want %v", i, got, want)
}
if got, want := dest.int64s, tc.int64s; !reflect.DeepEqual(got, want) {
t.Errorf("failed decode int64s %d, got %v, want %v", i, got, want)
}
}
}
type packedInts struct {
uint64s []uint64
int64s []int64
}
func (u *packedInts) decoder() []decoder {
return []decoder{
nil,
func(b *buffer, m message) error { return decodeUint64s(b, &m.(*packedInts).uint64s) },
func(b *buffer, m message) error { return decodeInt64s(b, &m.(*packedInts).int64s) },
}
}
func (u *packedInts) encode(b *buffer) {
encodeUint64s(b, 1, u.uint64s)
encodeInt64s(b, 2, u.int64s)
}
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