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Copy pathdecoder_map_test.go
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349 lines (272 loc) · 9.39 KB
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package avro_test
import (
"bytes"
"errors"
"math"
"strconv"
"testing"
"github.com/iskorotkov/avro/v2"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestDecoder_MapInvalidType(t *testing.T) {
defer ConfigTeardown()
data := []byte{0x02, 0x06, 0x66, 0x6F, 0x6F, 0x06, 0x66, 0x6F, 0x6F, 0x00}
schema := `{"type":"map", "values": "string"}`
dec, err := avro.NewDecoder(schema, bytes.NewReader(data))
require.NoError(t, err)
var str string
err = dec.Decode(&str)
assert.Error(t, err)
}
func TestDecoder_MapMap(t *testing.T) {
defer ConfigTeardown()
data := []byte{0x02, 0x06, 0x66, 0x6F, 0x6F, 0x06, 0x66, 0x6F, 0x6F, 0x00}
schema := `{"type":"map", "values": "string"}`
dec, _ := avro.NewDecoder(schema, bytes.NewReader(data))
var got map[string]string
err := dec.Decode(&got)
require.NoError(t, err)
assert.Equal(t, map[string]string{"foo": "foo"}, got)
}
func TestDecoder_MapMapShortRead(t *testing.T) {
defer ConfigTeardown()
data := []byte{0x02, 0x06, 0x66, 0x6F, 0x6F, 0x06, 0x06}
schema := `{"type":"map", "values": "string"}`
dec, _ := avro.NewDecoder(schema, bytes.NewReader(data))
var got map[string]string
err := dec.Decode(&got)
assert.Error(t, err)
}
func TestDecoder_MapMapOfStruct(t *testing.T) {
defer ConfigTeardown()
data := []byte{0x02, 0x06, 0x66, 0x6F, 0x6F, 0x36, 0x06, 0x66, 0x6f, 0x6f, 0x0}
schema := `{"type":"map", "values": {"type": "record", "name": "test", "fields" : [{"name": "a", "type": "long"}, {"name": "b", "type": "string"}]}}`
dec, _ := avro.NewDecoder(schema, bytes.NewReader(data))
var got map[string]TestRecord
err := dec.Decode(&got)
require.NoError(t, err)
assert.Equal(t, map[string]TestRecord{"foo": {A: 27, B: "foo"}}, got)
}
func TestDecoder_MapOfRecursiveStruct(t *testing.T) {
defer ConfigTeardown()
type record struct {
A int `avro:"a"`
B map[string]record `avro:"b"`
}
data := []byte{0x02, 0x01, 0x0c, 0x06, 0x66, 0x6f, 0x6f, 0x04, 0x0, 0x0}
schema := `{
"type": "record",
"name": "test",
"fields": [
{
"name": "a", "type": "int"
},
{
"name": "b",
"type": {
"type": "map", "values": "test"
}
}
]
}`
dec, _ := avro.NewDecoder(schema, bytes.NewReader(data))
var got record
err := dec.Decode(&got)
assert.NoError(t, err)
assert.Equal(t, record{A: 1, B: map[string]record{"foo": {A: 2, B: map[string]record{}}}}, got)
}
func TestDecoder_MapMapError(t *testing.T) {
defer ConfigTeardown()
data := []byte{0xE2, 0xA2, 0xF3, 0xAD, 0xAD, 0xAD, 0xE2, 0xA2, 0xF3, 0xAD, 0xAD}
schema := `{"type":"map", "values": "string"}`
dec, err := avro.NewDecoder(schema, bytes.NewReader(data))
require.NoError(t, err)
var got map[string]string
err = dec.Decode(&got)
assert.Error(t, err)
}
func TestDecoder_MapBigMap(t *testing.T) {
avro.DefaultConfig = avro.Config{MaxMapAllocSize: 20}.Freeze()
defer ConfigTeardown()
data := []byte{0x72} // map size 57
schema := `{"type":"map", "values": "string"}`
dec, err := avro.NewDecoder(schema, bytes.NewReader(data))
require.NoError(t, err)
var got map[string]string
err = dec.Decode(&got)
assert.ErrorContains(t, err, "size is greater than `Config.MaxMapAllocSize`")
}
func TestDecoder_MapMultiBlockExceedsMaxAlloc(t *testing.T) {
avro.DefaultConfig = avro.Config{MaxMapAllocSize: 5}.Freeze()
defer ConfigTeardown()
// Two blocks of 3 entries each. Each block alone is under the limit (3 <= 5),
// but the cumulative count (6) exceeds it — this is the chunking-attack path.
data := []byte{
0x06, // block 1: l = 3
0x02, 0x61, 0x02, 0x78, // "a" -> "x"
0x02, 0x62, 0x02, 0x79, // "b" -> "y"
0x02, 0x63, 0x02, 0x7a, // "c" -> "z"
0x06, // block 2: l = 3 (cumulative = 6 > 5)
}
schema := `{"type":"map", "values": "string"}`
dec, err := avro.NewDecoder(schema, bytes.NewReader(data))
require.NoError(t, err)
var got map[string]string
err = dec.Decode(&got)
assert.ErrorContains(t, err, "size is greater than `Config.MaxMapAllocSize`")
}
func TestDecoder_MapMultiBlockExceedsMaxInt(t *testing.T) {
avro.DefaultConfig = avro.Config{MaxMapAllocSize: 5}.Freeze()
defer ConfigTeardown()
data := []byte{
0x06, // block 1: l = 3
0x02, 0x61, 0x02, 0x78, // "a" -> "x"
0x02, 0x62, 0x02, 0x79, // "b" -> "y"
0x02, 0x63, 0x02, 0x7a, // "c" -> "z"
}
// block 2: l = max int - 2
data = append(data, avro.EncodeIntToBytes(math.MaxInt-2)...)
schema := `{"type":"map", "values": "string"}`
dec, err := avro.NewDecoder(schema, bytes.NewReader(data))
require.NoError(t, err)
var got map[string]string
err = dec.Decode(&got)
assert.ErrorContains(t, err, "size is greater than `Config.MaxMapAllocSize`")
}
func TestDecoder_MapMultiBlockUnderMaxAlloc(t *testing.T) {
avro.DefaultConfig = avro.Config{MaxMapAllocSize: 10}.Freeze()
defer ConfigTeardown()
data := []byte{
0x06, // block 1: l = 3
0x02, 0x61, 0x02, 0x78, // "a" -> "x"
0x02, 0x62, 0x02, 0x79, // "b" -> "y"
0x02, 0x63, 0x02, 0x7a, // "c" -> "z"
0x06, // block 2: l = 3 (cumulative = 6 <= 10)
0x02, 0x64, 0x02, 0x77, // "d" -> "w"
0x02, 0x65, 0x02, 0x76, // "e" -> "v"
0x02, 0x66, 0x02, 0x75, // "f" -> "u"
0x00, // end
}
schema := `{"type":"map", "values": "string"}`
dec, err := avro.NewDecoder(schema, bytes.NewReader(data))
require.NoError(t, err)
var got map[string]string
err = dec.Decode(&got)
require.NoError(t, err)
assert.Equal(t, map[string]string{
"a": "x", "b": "y", "c": "z",
"d": "w", "e": "v", "f": "u",
}, got)
}
type textUnmarshallerInt int
func (t *textUnmarshallerInt) UnmarshalText(text []byte) error {
i, err := strconv.Atoi(string(text))
if err != nil {
return err
}
*t = textUnmarshallerInt(i)
return nil
}
func TestDecoder_MapUnmarshallerMap(t *testing.T) {
defer ConfigTeardown()
data := []byte{0x1, 0xe, 0x2, 0x31, 0x8, 0x74, 0x65, 0x73, 0x74, 0x0}
schema := `{"type":"map", "values": "string"}`
dec, _ := avro.NewDecoder(schema, bytes.NewReader(data))
var got map[*textUnmarshallerInt]string
err := dec.Decode(&got)
require.NoError(t, err)
want := map[textUnmarshallerInt]string{1: "test"}
for k, v := range got {
wantVal, ok := want[*k]
assert.True(t, ok)
assert.Equal(t, wantVal, v)
}
}
func TestDecoder_MapBigUnmarshallerMap(t *testing.T) {
avro.DefaultConfig = avro.Config{MaxMapAllocSize: 20}.Freeze()
defer ConfigTeardown()
data := []byte{0x72} // map size 57
schema := `{"type":"map", "values": "string"}`
dec, _ := avro.NewDecoder(schema, bytes.NewReader(data))
var got map[*textUnmarshallerInt]string
err := dec.Decode(&got)
assert.ErrorContains(t, err, "size is greater than `Config.MaxMapAllocSize`")
}
func TestDecoder_MapMultiBlockUnmarshallerExceedsMaxAlloc(t *testing.T) {
avro.DefaultConfig = avro.Config{MaxMapAllocSize: 5}.Freeze()
defer ConfigTeardown()
data := []byte{
0x06, // block 1: l = 3
0x02, 0x31, 0x02, 0x78, // "1" -> "x"
0x02, 0x32, 0x02, 0x79, // "2" -> "y"
0x02, 0x33, 0x02, 0x7a, // "3" -> "z"
0x06, // block 2: l = 3 (cumulative = 6 > 5)
}
schema := `{"type":"map", "values": "string"}`
dec, err := avro.NewDecoder(schema, bytes.NewReader(data))
require.NoError(t, err)
var got map[*textUnmarshallerInt]string
err = dec.Decode(&got)
assert.ErrorContains(t, err, "size is greater than `Config.MaxMapAllocSize`")
}
func TestDecoder_MapMultiBlockUnmarshallerExceedsMaxInt(t *testing.T) {
avro.DefaultConfig = avro.Config{MaxMapAllocSize: 5}.Freeze()
defer ConfigTeardown()
data := []byte{
0x06, // block 1: l = 3
0x02, 0x31, 0x02, 0x78, // "1" -> "x"
0x02, 0x32, 0x02, 0x79, // "2" -> "y"
0x02, 0x33, 0x02, 0x7a, // "3" -> "z"
}
// block 2: l = max int - 2
data = append(data, avro.EncodeIntToBytes(math.MaxInt-2)...)
schema := `{"type":"map", "values": "string"}`
dec, err := avro.NewDecoder(schema, bytes.NewReader(data))
require.NoError(t, err)
var got map[*textUnmarshallerInt]string
err = dec.Decode(&got)
require.EqualError(t, err, "avro: decode map: size is greater than `Config.MaxMapAllocSize`")
}
type textUnmarshallerNope int
func (t textUnmarshallerNope) UnmarshalText(text []byte) error {
i, err := strconv.Atoi(string(text))
if err != nil {
return err
}
_ = textUnmarshallerNope(i)
return nil
}
func TestDecoder_MapUnmarshallerMapImpossible(t *testing.T) {
defer ConfigTeardown()
data := []byte{0x1, 0xe, 0x2, 0x31, 0x8, 0x74, 0x65, 0x73, 0x74, 0x0}
schema := `{"type":"map", "values": "string"}`
dec, _ := avro.NewDecoder(schema, bytes.NewReader(data))
var got map[textUnmarshallerNope]string
err := dec.Decode(&got)
require.NoError(t, err)
want := map[textUnmarshallerNope]string{0: "test"}
assert.Equal(t, want, got)
}
type textUnmarshallerError int
func (t *textUnmarshallerError) UnmarshalText(text []byte) error {
return errors.New("test")
}
func TestDecoder_MapUnmarshallerKeyError(t *testing.T) {
defer ConfigTeardown()
data := []byte{0x1, 0xe, 0x2, 0x31, 0x8, 0x74, 0x65, 0x73, 0x74, 0x0}
schema := `{"type":"map", "values": "string"}`
dec, _ := avro.NewDecoder(schema, bytes.NewReader(data))
var got map[*textUnmarshallerError]string
err := dec.Decode(&got)
require.Error(t, err)
}
func TestDecoder_MapInvalidKeyType(t *testing.T) {
defer ConfigTeardown()
data := []byte{0x02, 0x06, 0x66, 0x6F, 0x6F, 0x06, 0x66, 0x6F, 0x6F, 0x00}
schema := `{"type":"map", "values": "string"}`
dec, _ := avro.NewDecoder(schema, bytes.NewReader(data))
var got map[int]string
err := dec.Decode(&got)
assert.Error(t, err)
}