frostfs-api-go/util/proto/marshal_test.go
Alex Vanin f8482381fd Add stable marshaller helper for ints
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-09-18 10:41:01 +03:00

400 lines
8.3 KiB
Go

package proto_test
import (
"math"
"testing"
"github.com/nspcc-dev/neofs-api-go/util/proto"
"github.com/nspcc-dev/neofs-api-go/util/proto/test"
"github.com/pkg/errors"
"github.com/stretchr/testify/require"
)
type stablePrimitives struct {
FieldA []byte
FieldB string
FieldC bool
FieldD int32
FieldE uint32
FieldF int64
FieldG uint64
}
func (s *stablePrimitives) stableMarshal(buf []byte, wrongField bool) ([]byte, error) {
if s == nil {
return []byte{}, nil
}
if buf == nil {
buf = make([]byte, s.stableSize())
}
var (
i, offset, fieldNum int
)
fieldNum = 1
if wrongField {
fieldNum++
}
offset, err := proto.BytesMarshal(fieldNum, buf, s.FieldA)
if err != nil {
return nil, errors.Wrap(err, "can't marshal field a")
}
i += offset
fieldNum = 2
if wrongField {
fieldNum++
}
offset, err = proto.StringMarshal(fieldNum, buf, s.FieldB)
if err != nil {
return nil, errors.Wrap(err, "can't marshal field b")
}
i += offset
fieldNum = 200
if wrongField {
fieldNum++
}
offset, err = proto.BoolMarshal(fieldNum, buf, s.FieldC)
if err != nil {
return nil, errors.Wrap(err, "can't marshal field c")
}
i += offset
fieldNum = 201
if wrongField {
fieldNum++
}
offset, err = proto.Int32Marshal(fieldNum, buf, s.FieldD)
if err != nil {
return nil, errors.Wrap(err, "can't marshal field d")
}
i += offset
fieldNum = 202
if wrongField {
fieldNum++
}
offset, err = proto.UInt32Marshal(fieldNum, buf, s.FieldE)
if err != nil {
return nil, errors.Wrap(err, "can't marshal field e")
}
i += offset
fieldNum = 203
if wrongField {
fieldNum++
}
offset, err = proto.Int64Marshal(fieldNum, buf, s.FieldF)
if err != nil {
return nil, errors.Wrap(err, "can't marshal field f")
}
i += offset
fieldNum = 204
if wrongField {
fieldNum++
}
offset, err = proto.UInt64Marshal(fieldNum, buf, s.FieldG)
if err != nil {
return nil, errors.Wrap(err, "can't marshal field g")
}
i += offset
return buf, nil
}
func (s *stablePrimitives) stableSize() int {
return proto.BytesSize(1, s.FieldA) +
proto.StringSize(2, s.FieldB) +
proto.BoolSize(200, s.FieldC) +
proto.Int32Size(201, s.FieldD) +
proto.UInt32Size(202, s.FieldE) +
proto.Int64Size(203, s.FieldF) +
proto.UInt64Size(204, s.FieldG)
}
func TestBytesMarshal(t *testing.T) {
t.Run("not empty", func(t *testing.T) {
data := []byte("Hello World")
testBytesMarshal(t, data, false)
testBytesMarshal(t, data, true)
})
t.Run("empty", func(t *testing.T) {
testBytesMarshal(t, []byte{}, false)
})
t.Run("nil", func(t *testing.T) {
testBytesMarshal(t, nil, false)
})
}
func TestStringMarshal(t *testing.T) {
t.Run("not empty", func(t *testing.T) {
data := "Hello World"
testStringMarshal(t, data, false)
testStringMarshal(t, data, true)
})
t.Run("empty", func(t *testing.T) {
testStringMarshal(t, "", false)
})
}
func TestBoolMarshal(t *testing.T) {
t.Run("true", func(t *testing.T) {
testBoolMarshal(t, true, false)
testBoolMarshal(t, true, true)
})
t.Run("false", func(t *testing.T) {
testBoolMarshal(t, false, false)
})
}
func TestInt32Marshal(t *testing.T) {
t.Run("zero", func(t *testing.T) {
testInt32Marshal(t, 0, false)
})
t.Run("positive", func(t *testing.T) {
testInt32Marshal(t, math.MaxInt32, false)
testInt32Marshal(t, math.MaxInt32, true)
})
t.Run("negative", func(t *testing.T) {
testInt32Marshal(t, math.MinInt32, false)
testInt32Marshal(t, math.MinInt32, true)
})
}
func TestUInt32Marshal(t *testing.T) {
t.Run("zero", func(t *testing.T) {
testUInt32Marshal(t, 0, false)
})
t.Run("non zero", func(t *testing.T) {
testUInt32Marshal(t, math.MaxUint32, false)
testUInt32Marshal(t, math.MaxUint32, true)
})
}
func TestInt64Marshal(t *testing.T) {
t.Run("zero", func(t *testing.T) {
testInt32Marshal(t, 0, false)
})
t.Run("positive", func(t *testing.T) {
testInt64Marshal(t, math.MaxInt64, false)
testInt64Marshal(t, math.MaxInt64, true)
})
t.Run("negative", func(t *testing.T) {
testInt64Marshal(t, math.MinInt64, false)
testInt64Marshal(t, math.MinInt64, true)
})
}
func TestUInt64Marshal(t *testing.T) {
t.Run("zero", func(t *testing.T) {
testUInt64Marshal(t, 0, false)
})
t.Run("non zero", func(t *testing.T) {
testUInt64Marshal(t, math.MaxUint64, false)
testUInt64Marshal(t, math.MaxUint64, true)
})
}
func testBytesMarshal(t *testing.T, data []byte, wrongField bool) {
var (
wire []byte
err error
custom = stablePrimitives{FieldA: data}
transport = test.Primitives{FieldA: data}
)
wire, err = custom.stableMarshal(nil, wrongField)
require.NoError(t, err)
wireGen, err := transport.Marshal()
require.NoError(t, err)
if !wrongField {
// we can check equality because single field cannot be unstable marshalled
require.Equal(t, wireGen, wire)
} else {
require.NotEqual(t, wireGen, wire)
}
result := new(test.Primitives)
err = result.Unmarshal(wire)
require.NoError(t, err)
if !wrongField {
require.Len(t, result.FieldA, len(data))
if len(data) > 0 {
require.Equal(t, data, result.FieldA)
}
} else {
require.Len(t, result.FieldA, 0)
}
}
func testStringMarshal(t *testing.T, s string, wrongField bool) {
var (
wire []byte
err error
custom = stablePrimitives{FieldB: s}
transport = test.Primitives{FieldB: s}
)
wire, err = custom.stableMarshal(nil, wrongField)
require.NoError(t, err)
wireGen, err := transport.Marshal()
require.NoError(t, err)
if !wrongField {
// we can check equality because single field cannot be unstable marshalled
require.Equal(t, wireGen, wire)
} else {
require.NotEqual(t, wireGen, wire)
}
result := new(test.Primitives)
err = result.Unmarshal(wire)
require.NoError(t, err)
if !wrongField {
require.Len(t, result.FieldB, len(s))
if len(s) > 0 {
require.Equal(t, s, result.FieldB)
}
} else {
require.Len(t, result.FieldB, 0)
}
}
func testBoolMarshal(t *testing.T, b bool, wrongField bool) {
var (
wire []byte
err error
custom = stablePrimitives{FieldC: b}
transport = test.Primitives{FieldC: b}
)
wire, err = custom.stableMarshal(nil, wrongField)
require.NoError(t, err)
wireGen, err := transport.Marshal()
require.NoError(t, err)
if !wrongField {
// we can check equality because single field cannot be unstable marshalled
require.Equal(t, wireGen, wire)
} else {
require.NotEqual(t, wireGen, wire)
}
result := new(test.Primitives)
err = result.Unmarshal(wire)
require.NoError(t, err)
if !wrongField {
require.Equal(t, b, result.FieldC)
} else {
require.False(t, false, result.FieldC)
}
}
func testIntMarshal(t *testing.T, c stablePrimitives, tr test.Primitives, wrongField bool) *test.Primitives {
var (
wire []byte
err error
)
wire, err = c.stableMarshal(nil, wrongField)
require.NoError(t, err)
wireGen, err := tr.Marshal()
require.NoError(t, err)
if !wrongField {
// we can check equality because single field cannot be unstable marshalled
require.Equal(t, wireGen, wire)
} else {
require.NotEqual(t, wireGen, wire)
}
result := new(test.Primitives)
err = result.Unmarshal(wire)
require.NoError(t, err)
return result
}
func testInt32Marshal(t *testing.T, n int32, wrongField bool) {
var (
custom = stablePrimitives{FieldD: n}
transport = test.Primitives{FieldD: n}
)
result := testIntMarshal(t, custom, transport, wrongField)
if !wrongField {
require.Equal(t, n, result.FieldD)
} else {
require.EqualValues(t, 0, result.FieldD)
}
}
func testUInt32Marshal(t *testing.T, n uint32, wrongField bool) {
var (
custom = stablePrimitives{FieldE: n}
transport = test.Primitives{FieldE: n}
)
result := testIntMarshal(t, custom, transport, wrongField)
if !wrongField {
require.Equal(t, n, result.FieldE)
} else {
require.EqualValues(t, 0, result.FieldE)
}
}
func testInt64Marshal(t *testing.T, n int64, wrongField bool) {
var (
custom = stablePrimitives{FieldF: n}
transport = test.Primitives{FieldF: n}
)
result := testIntMarshal(t, custom, transport, wrongField)
if !wrongField {
require.Equal(t, n, result.FieldF)
} else {
require.EqualValues(t, 0, result.FieldF)
}
}
func testUInt64Marshal(t *testing.T, n uint64, wrongField bool) {
var (
custom = stablePrimitives{FieldG: n}
transport = test.Primitives{FieldG: n}
)
result := testIntMarshal(t, custom, transport, wrongField)
if !wrongField {
require.Equal(t, n, result.FieldG)
} else {
require.EqualValues(t, 0, result.FieldG)
}
}