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reader_test.go
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package resp3_test
import (
"bufio"
"bytes"
"io"
"io/ioutil"
"math"
"math/big"
"path/filepath"
"strconv"
"strings"
"testing"
"github.com/nussjustin/resp3"
"github.com/nussjustin/resp3/internal/fuzz"
)
func assertReadResultEqual(tb testing.TB, expected, actual []byte, expectedErr, actualErr error) {
tb.Helper()
assertError(tb, expectedErr, actualErr)
if expectedErr == nil && actualErr == nil {
assertBytesEqual(tb, expected, actual)
} else {
assertBytesEqual(tb, nil, actual)
}
}
func TestReaderReset(t *testing.T) {
rr := resp3.NewReader(strings.NewReader(""))
assertError(t, resp3.ErrUnexpectedEOL, rr.ReadEnd())
rr.Reset(strings.NewReader(".\r\n"))
assertError(t, nil, rr.ReadEnd())
assertError(t, resp3.ErrUnexpectedEOL, rr.ReadEnd())
rr.Reset(strings.NewReader(".\r\n"))
assertError(t, nil, rr.ReadEnd())
assertError(t, resp3.ErrUnexpectedEOL, rr.ReadEnd())
}
func TestReaderPeek(t *testing.T) {
types := map[resp3.Type]bool{
resp3.TypeArray: true,
resp3.TypeAttribute: true,
resp3.TypeBigNumber: true,
resp3.TypeBoolean: true,
resp3.TypeDouble: true,
resp3.TypeBlobError: true,
resp3.TypeBlobString: true,
resp3.TypeBlobChunk: true,
resp3.TypeEnd: true,
resp3.TypeMap: true,
resp3.TypeNumber: true,
resp3.TypeNull: true,
resp3.TypePush: true,
resp3.TypeSet: true,
resp3.TypeSimpleError: true,
resp3.TypeSimpleString: true,
resp3.TypeVerbatimString: true,
}
for i := byte(0); i < ^byte(0); i++ {
rr, _ := newTestReader(string([]byte{i}))
ty, err := rr.Peek()
if types[resp3.Type(i)] {
assertError(t, nil, err)
if ty != resp3.Type(i) {
t.Errorf("got %v, expected %v", ty, resp3.Type(i))
}
} else {
assertError(t, resp3.ErrInvalidType, err)
}
}
// special case for RESP3 compatibility
for _, in := range []string{
string(resp3.TypeArray) + "-1\r\n",
string(resp3.TypeBlobString) + "-1\r\n",
} {
rr, _ := newTestReader(in)
ty, err := rr.Peek()
assertError(t, nil, err)
if ty != resp3.TypeNull {
t.Errorf("got %s, expected nil", ty)
}
}
}
func benchmarkPeek(in string) func(*testing.B) {
return func(b *testing.B) {
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _ = rr.Peek()
}
}
}
func BenchmarkReaderPeek(b *testing.B) {
b.Run("Invalid", benchmarkPeek("/\r\n"))
b.Run("NilArray", benchmarkPeek("*-1\r\n"))
b.Run("NilBlobString", benchmarkPeek("$-1\r\n"))
b.Run("Valid", benchmarkPeek("_\r\n"))
}
func TestReaderRead(t *testing.T) {
t.Run("Array", testReadArray)
t.Run("Attribute", testReadAttribute)
t.Run("BigNumber", testReadBigNumber)
t.Run("Boolean", testReadBoolean)
t.Run("Double", testReadDouble)
t.Run("BlobChunk", testReadBlobChunk)
t.Run("BlobChunks", testReadBlobChunks)
t.Run("BlobError", testReadBlobError)
t.Run("BlobString", testReadBlobString)
t.Run("End", testReadEnd)
t.Run("Map", testReadMap)
t.Run("Null", testReadNull)
t.Run("Number", testReadNumber)
t.Run("Push", testReadPush)
t.Run("Set", testReadSet)
t.Run("SimpleError", testReadSimpleError)
t.Run("SimpleString", testReadSimpleString)
t.Run("VerbatimString", testReadVerbatimString)
}
func newTestReader(s string) (rr *resp3.Reader, reset func(string)) {
r := strings.NewReader(s)
br := bufio.NewReader(r)
rr = resp3.NewReader(br)
return rr, func(s string) {
r.Reset(s)
br.Reset(r)
}
}
func newTypePrefixFunc(ty resp3.Type) func(string) string {
return func(s string) string {
return string(ty) + s
}
}
func runAggregateReadTest(t *testing.T, ty resp3.Type, readHeader func(*resp3.Reader) (int64, bool, error)) {
p := newTypePrefixFunc(ty)
for _, c := range []struct {
in string
n int64
chunked bool
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeBlobString), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("a\r\n"), err: resp3.ErrInvalidAggregateTypeLength},
{in: p("-2\r\n"), err: resp3.ErrInvalidAggregateTypeLength},
{in: p("-1\r\n"), err: resp3.ErrInvalidAggregateTypeLength},
{in: p("0\r\n")},
{in: p("1\r\n"), n: 1},
{in: p("2\r\n"), n: 2},
{in: p("?\r\n"), n: -1, chunked: true},
{in: p("184467440737095516151\r\n"), err: resp3.ErrOverflow},
} {
rr, _ := newTestReader(c.in)
n, chunked, err := readHeader(rr)
assertError(t, c.err, err)
if n != c.n {
t.Errorf("got n=%d, expected n=%d", n, c.n)
}
if chunked != c.chunked {
t.Errorf("got chunked=%v, expected chunked=%v", chunked, c.chunked)
}
}
}
func runBlobReadTest(t *testing.T, ty resp3.Type, readBlob func(*resp3.Reader, []byte) ([]byte, bool, error)) {
p := newTypePrefixFunc(ty)
for _, c := range []struct {
in string
limit int
s string
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeArray), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("-2\r\n"), err: resp3.ErrInvalidBlobLength},
{in: p("-1\r\n"), err: resp3.ErrInvalidBlobLength},
{in: p("\r\nhello\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\r\n"), s: "hello"},
{in: p("5\r\nhello world\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("10\r\nhello\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\n"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\r"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\r\r"), err: resp3.ErrUnexpectedEOL},
{
in: p("11000\r\n") + strings.Repeat("hello world", 1000) + "\r\n",
s: strings.Repeat("hello world", 1000),
},
{
in: p(strconv.Itoa(resp3.DefaultSingleReadSizeLimit) + "\r\n" +
strings.Repeat("a", resp3.DefaultSingleReadSizeLimit) + "\r\n"),
s: strings.Repeat("a", resp3.DefaultSingleReadSizeLimit),
},
{
in: p(strconv.Itoa(resp3.DefaultSingleReadSizeLimit+1) + "\r\n" +
strings.Repeat("a", resp3.DefaultSingleReadSizeLimit+1) + "\r\n"),
err: resp3.ErrSingleReadSizeLimitExceeded,
},
{
in: p(strconv.Itoa(resp3.DefaultSingleReadSizeLimit+1) + "\r\n" +
strings.Repeat("a", resp3.DefaultSingleReadSizeLimit+1) + "\r\n"),
limit: -1,
s: strings.Repeat("a", resp3.DefaultSingleReadSizeLimit+1),
},
{
in: p("5\r\nhello\r\n"),
limit: 5,
s: "hello",
},
{
in: p("5\r\nhello\r\n"),
limit: 4,
err: resp3.ErrSingleReadSizeLimitExceeded,
},
{in: p("184467440737095516151\r\n"), err: resp3.ErrOverflow},
} {
withBuf := func(base []byte) {
rr, _ := newTestReader(c.in)
rr.SingleReadSizeLimit = c.limit
buf, chunked, err := readBlob(rr, base)
assertReadResultEqual(t, append(base, c.s...), buf, c.err, err)
if chunked {
t.Errorf("got chunked=%v, expected chunked=%v", chunked, false)
}
}
withBuf(nil)
withBuf([]byte("existing data"))
}
}
func runStreamableBlobReadTest(t *testing.T, ty resp3.Type, readBlob func(*resp3.Reader, []byte) ([]byte, bool, error)) {
runBlobReadTest(t, ty, readBlob)
p := newTypePrefixFunc(ty)
{
rr, _ := newTestReader(p("0\r\n"))
b, chunked, err := readBlob(rr, nil)
assertError(t, resp3.ErrUnexpectedEOL, err)
if len(b) != 0 {
t.Errorf("got %q, expected no data", string(b))
}
if chunked {
t.Errorf("got chunked=%v, expected chunked=%v", chunked, false)
}
}
{
rr, _ := newTestReader(p("?\r\n"))
b, chunked, err := readBlob(rr, nil)
assertError(t, nil, err)
if len(b) != 0 {
t.Errorf("got %q, expected no data", string(b))
}
if !chunked {
t.Errorf("got chunked=%v, expected chunked=%v", chunked, true)
}
}
}
func runEmptyReadTest(t *testing.T, ty resp3.Type, readEmpty func(*resp3.Reader) error) {
p := newTypePrefixFunc(ty)
for _, c := range []struct {
in string
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeArray), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\n")},
{in: p(".\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("#\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("A\r\n"), err: resp3.ErrUnexpectedEOL},
} {
rr, _ := newTestReader(c.in)
assertError(t, c.err, readEmpty(rr))
}
}
func runSimpleReadTest(t *testing.T, ty resp3.Type, readSimple func(*resp3.Reader, []byte) ([]byte, error)) {
p := newTypePrefixFunc(ty)
for _, c := range []struct {
in string
limit int
s string
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeArray), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\n")},
{in: p("OK\r\n"), s: "OK"},
{
in: p(strings.Repeat("hello world", 1000) + "\r\n"),
s: strings.Repeat("hello world", 1000),
},
{
in: p(strings.Repeat("a", resp3.DefaultSingleReadSizeLimit) + "\r\n"),
s: strings.Repeat("a", resp3.DefaultSingleReadSizeLimit),
},
{
in: p(strings.Repeat("a", resp3.DefaultSingleReadSizeLimit+1) + "\r\n"),
err: resp3.ErrSingleReadSizeLimitExceeded,
},
{
in: p(strings.Repeat("a", resp3.DefaultSingleReadSizeLimit+1) + "\r\n"),
limit: -1,
s: strings.Repeat("a", resp3.DefaultSingleReadSizeLimit+1),
},
{
in: p("hello\r\n"),
limit: 5,
s: "hello",
},
{
in: p("hello\r\n"),
limit: 4,
err: resp3.ErrSingleReadSizeLimitExceeded,
},
} {
withBuf := func(base []byte) {
rr, _ := newTestReader(c.in)
rr.SingleReadSizeLimit = c.limit
buf, err := readSimple(rr, base)
assertReadResultEqual(t, append(base, c.s...), buf, c.err, err)
}
withBuf(nil)
withBuf([]byte("existing data"))
}
}
func testReadArray(t *testing.T) {
runAggregateReadTest(t, resp3.TypeArray, (*resp3.Reader).ReadArrayHeader)
}
func testReadAttribute(t *testing.T) {
runAggregateReadTest(t, resp3.TypeAttribute, (*resp3.Reader).ReadAttributeHeader)
}
func testReadBigNumber(t *testing.T) {
newBigInt := func(s string) *big.Int {
n, _ := new(big.Int).SetString(s, 10)
return n
}
p := newTypePrefixFunc(resp3.TypeBigNumber)
for _, c := range []struct {
in string
n *big.Int
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeArray), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("-10\r\n"), n: big.NewInt(-10)},
{in: p("-1\r\n"), n: big.NewInt(-1)},
{in: p("0\r\n"), n: big.NewInt(0)},
{in: p("1\r\n"), n: big.NewInt(1)},
{in: p("10\r\n"), n: big.NewInt(10)},
{in: p("-123456789123456789123456789123456789\r\n"),
n: newBigInt("-123456789123456789123456789123456789")},
{in: p("123456789123456789123456789123456789\r\n"),
n: newBigInt("123456789123456789123456789123456789")},
{in: p("+123456789123456789123456789123456789\r\n"),
n: newBigInt("123456789123456789123456789123456789")},
{in: p("+1\r\n"), n: big.NewInt(1)},
{in: p("A\r\n"), err: resp3.ErrInvalidBigNumber},
{in: p("1a\r\n"), err: resp3.ErrInvalidBigNumber},
{in: p("1.\r\n"), err: resp3.ErrInvalidBigNumber},
{in: p("1.0\r\n"), err: resp3.ErrInvalidBigNumber},
{in: p("1.01\r\n"), err: resp3.ErrInvalidBigNumber},
{in: p("#\r\n"), err: resp3.ErrInvalidBigNumber},
{in: p("-\r\n"), err: resp3.ErrInvalidBigNumber},
{in: p("+\r\n"), err: resp3.ErrInvalidBigNumber},
} {
rr, _ := newTestReader(c.in)
n := new(big.Int)
err := rr.ReadBigNumber(n)
assertError(t, c.err, err)
if c.n != nil && c.n.Cmp(n) != 0 {
t.Errorf("got %s, expected %s", n, c.n)
}
}
}
func testReadBoolean(t *testing.T) {
p := newTypePrefixFunc(resp3.TypeBoolean)
for _, c := range []struct {
in string
b bool
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeArray), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\r"), err: resp3.ErrUnexpectedEOL},
{in: p("f\n"), err: resp3.ErrUnexpectedEOL},
{in: p("f\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("f\r"), err: resp3.ErrUnexpectedEOL},
{in: p("f\r\r"), err: resp3.ErrUnexpectedEOL},
{in: p("t\n"), err: resp3.ErrUnexpectedEOL},
{in: p("t\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("t\r"), err: resp3.ErrUnexpectedEOL},
{in: p("t\r\r"), err: resp3.ErrUnexpectedEOL},
{in: p("f\r\n")},
{in: p("t\r\n"), b: true},
{in: p("#\r\n"), err: resp3.ErrInvalidBoolean},
{in: p("A\r\n"), err: resp3.ErrInvalidBoolean},
{in: p("F\r\n"), err: resp3.ErrInvalidBoolean},
{in: p("T\r\n"), err: resp3.ErrInvalidBoolean},
{in: p("Z\r\n"), err: resp3.ErrInvalidBoolean},
} {
rr, _ := newTestReader(c.in)
b, err := rr.ReadBoolean()
assertError(t, c.err, err)
if b != c.b {
t.Errorf("got %v, expected %v", b, c.b)
}
}
}
func testReadDouble(t *testing.T) {
p := newTypePrefixFunc(resp3.TypeDouble)
for _, c := range []struct {
in string
f float64
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeArray), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("-1"), err: resp3.ErrUnexpectedEOL},
{in: p("0"), err: resp3.ErrUnexpectedEOL},
{in: p("1"), err: resp3.ErrUnexpectedEOL},
{in: p("inf"), err: resp3.ErrUnexpectedEOL},
{in: p("-inf"), err: resp3.ErrUnexpectedEOL},
{in: p("+inf"), err: resp3.ErrUnexpectedEOL},
{in: p("-1.2\r\n"), f: -1.2},
{in: p("-1.0\r\n"), f: -1},
{in: p("-1\r\n"), f: -1},
{in: p("-0.01\r\n"), f: -0.01},
{in: p("-0.1\r\n"), f: -0.1},
{in: p("-0.0\r\n")},
{in: p("0\r\n")},
{in: p("0.0\r\n")},
{in: p("0.01\r\n"), f: 0.01},
{in: p("0.1\r\n"), f: 0.1},
{in: p("1\r\n"), f: 1},
{in: p("1.0\r\n"), f: 1},
{in: p("1.2\r\n"), f: 1.2},
{in: p("1.\r\n"), f: 1},
{in: p("1.01\r\n"), f: 1.01},
{in: p("+1\r\n"), f: 1},
{in: p("inf\r\n"), f: math.Inf(1)},
{in: p("+inf\r\n"), f: math.Inf(1)}, // not specified, but handled by ParseFloat
{in: p("-inf\r\n"), f: math.Inf(-1)},
{in: p("A\r\n"), err: resp3.ErrInvalidDouble},
{in: p("1a\r\n"), err: resp3.ErrInvalidDouble},
{in: p("#\r\n"), err: resp3.ErrInvalidDouble},
{in: p("-\r\n"), err: resp3.ErrInvalidDouble},
{in: p("+\r\n"), err: resp3.ErrInvalidDouble},
} {
rr, _ := newTestReader(c.in)
f, err := rr.ReadDouble()
assertError(t, c.err, err)
if f != c.f {
t.Errorf("got %f, expected %f", f, c.f)
}
}
}
func testReadBlobChunk(t *testing.T) {
runBlobReadTest(t, resp3.TypeBlobChunk, (*resp3.Reader).ReadBlobChunk)
p := newTypePrefixFunc(resp3.TypeBlobChunk)
{
rr, _ := newTestReader(p("0\r\n"))
b, last, err := rr.ReadBlobChunk(nil)
assertError(t, nil, err)
if len(b) != 0 {
t.Errorf("got %q, expected no data", string(b))
}
if !last {
t.Errorf("got last=%v, expected last=%v", last, true)
}
}
}
func testReadBlobChunks(t *testing.T) {
p := newTypePrefixFunc(resp3.TypeBlobChunk)
for _, c := range []struct {
in string
s string
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeArray), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("-2\r\n"), err: resp3.ErrInvalidBlobLength},
{in: p("-1\r\n"), err: resp3.ErrInvalidBlobLength},
{in: p("\r\nhello\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("0\r\n")},
{in: p("5\r\nhello\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\r\n") + p("0\r\n"), s: "hello"},
{in: p("5\r\nhello world\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("10\r\nhello\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\n"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\r"), err: resp3.ErrUnexpectedEOL},
{in: p("5\r\nhello\r\r"), err: resp3.ErrUnexpectedEOL},
{
in: p("11000\r\n"+strings.Repeat("hello world", 1000)+"\r\n") + p("0\r\n"),
s: strings.Repeat("hello world", 1000),
},
} {
withBuf := func(base []byte) {
rr, _ := newTestReader(c.in)
buf, err := rr.ReadBlobChunks(base)
assertReadResultEqual(t, append(base, c.s...), buf, c.err, err)
}
withBuf(nil)
withBuf([]byte("existing data"))
}
}
func testReadBlobError(t *testing.T) {
runStreamableBlobReadTest(t, resp3.TypeBlobError, (*resp3.Reader).ReadBlobError)
}
func testReadBlobString(t *testing.T) {
runStreamableBlobReadTest(t, resp3.TypeBlobString, (*resp3.Reader).ReadBlobString)
}
func testReadEnd(t *testing.T) {
runEmptyReadTest(t, resp3.TypeEnd, (*resp3.Reader).ReadEnd)
}
func testReadMap(t *testing.T) {
runAggregateReadTest(t, resp3.TypeMap, (*resp3.Reader).ReadMapHeader)
}
func testReadNull(t *testing.T) {
runEmptyReadTest(t, resp3.TypeNull, (*resp3.Reader).ReadNull)
// RESP2 backward compatibility
for _, in := range []string{
string(resp3.TypeArray) + "-1\r\n",
string(resp3.TypeBlobString) + "-1\r\n",
} {
rr, _ := newTestReader(in)
assertError(t, nil, rr.ReadNull())
}
}
func testReadNumber(t *testing.T) {
p := newTypePrefixFunc(resp3.TypeNumber)
for _, c := range []struct {
in string
n int64
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeArray), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("-10\r\n"), n: -10},
{in: p("-1\r\n"), n: -1},
{in: p("0\r\n")},
{in: p("1\r\n"), n: 1},
{in: p("10\r\n"), n: 10},
{in: p("A\r\n"), err: resp3.ErrInvalidNumber},
{in: p("1a\r\n"), err: resp3.ErrInvalidNumber},
{in: p("1.\r\n"), err: resp3.ErrInvalidNumber},
{in: p("1.0\r\n"), err: resp3.ErrInvalidNumber},
{in: p("1.01\r\n"), err: resp3.ErrInvalidNumber},
{in: p("#\r\n"), err: resp3.ErrInvalidNumber},
{in: p("-\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("+\r\n"), err: resp3.ErrInvalidNumber},
{in: p("+1\r\n"), err: resp3.ErrInvalidNumber},
// Numbers are parsed as int64
{in: p("-184467440737095516151\r\n"), err: resp3.ErrOverflow},
{in: p("184467440737095516151\r\n"), err: resp3.ErrOverflow},
} {
rr, _ := newTestReader(c.in)
n, err := rr.ReadNumber()
assertError(t, c.err, err)
if n != c.n {
t.Errorf("got %d, expected %d", n, c.n)
}
}
}
func testReadPush(t *testing.T) {
runAggregateReadTest(t, resp3.TypePush, (*resp3.Reader).ReadPushHeader)
}
func testReadSet(t *testing.T) {
runAggregateReadTest(t, resp3.TypeSet, (*resp3.Reader).ReadSetHeader)
}
func testReadSimpleError(t *testing.T) {
runSimpleReadTest(t, resp3.TypeSimpleError, (*resp3.Reader).ReadSimpleError)
}
func testReadSimpleString(t *testing.T) {
runSimpleReadTest(t, resp3.TypeSimpleString, (*resp3.Reader).ReadSimpleString)
}
func testReadVerbatimString(t *testing.T) {
p := newTypePrefixFunc(resp3.TypeVerbatimString)
for _, c := range []struct {
in string
limit int
s string
err error
}{
{err: resp3.ErrUnexpectedEOL},
{in: "A", err: resp3.ErrInvalidType},
{in: string(resp3.TypeArray), err: resp3.ErrUnexpectedType},
{in: string(resp3.TypeInvalid), err: resp3.ErrInvalidType},
{in: p(""), err: resp3.ErrUnexpectedEOL},
{in: p("\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("\r\nfoo:\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("3\r\nbar\r\n"), err: resp3.ErrInvalidVerbatimString},
{in: p("4\r\n:bar\r\n"), err: resp3.ErrInvalidVerbatimString},
{in: p("5\r\nf:bar\r\n"), err: resp3.ErrInvalidVerbatimString},
{in: p("6\r\nfo:bar\r\n"), err: resp3.ErrInvalidVerbatimString},
{in: p("4\r\nfoo:\r\n"), s: "foo:"},
{in: p("5\r\nfoo:b\r\n"), s: "foo:b"},
{in: p("6\r\nfoo:ba\r\n"), s: "foo:ba"},
{in: p("7\r\nfoo:bar\r\n"), s: "foo:bar"},
{in: p("5\r\nfoo:hello world\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("10\r\nfoo:hello\r\n"), err: resp3.ErrUnexpectedEOL},
{in: p("7\r\nfoo:bar"), err: resp3.ErrUnexpectedEOL},
{in: p("7\r\nfoo:bar\n"), err: resp3.ErrUnexpectedEOL},
{in: p("7\r\nfoo:bar\n\r"), err: resp3.ErrUnexpectedEOL},
{in: p("7\r\nfoo:bar\r"), err: resp3.ErrUnexpectedEOL},
{in: p("7\r\nfoo:bar\r\r"), err: resp3.ErrUnexpectedEOL},
{
in: p("11004\r\nfoo:" + strings.Repeat("hello world", 1000) + "\r\n"),
s: "foo:" + strings.Repeat("hello world", 1000),
},
{
in: p(strconv.Itoa(resp3.DefaultSingleReadSizeLimit) + "\r\nfoo:" +
strings.Repeat("a", resp3.DefaultSingleReadSizeLimit-len("foo:")) + "\r\n"),
s: "foo:" + strings.Repeat("a", resp3.DefaultSingleReadSizeLimit-len("foo:")),
},
{
in: p(strconv.Itoa(resp3.DefaultSingleReadSizeLimit+1) + "\r\nfoo:" +
strings.Repeat("a", resp3.DefaultSingleReadSizeLimit-len("foo:")+1) + "\r\n"),
err: resp3.ErrSingleReadSizeLimitExceeded,
},
{
in: p(strconv.Itoa(resp3.DefaultSingleReadSizeLimit+1) + "\r\nfoo:" +
strings.Repeat("a", resp3.DefaultSingleReadSizeLimit-len("foo:")+1) + "\r\n"),
limit: -1,
s: "foo:" + strings.Repeat("a", resp3.DefaultSingleReadSizeLimit-len("foo:")+1),
},
{
in: p("7\r\nfoo:bar\r\n"),
limit: 7,
s: "foo:bar",
},
{
in: p("7\r\nfoo:bar\r\n"),
limit: 6,
err: resp3.ErrSingleReadSizeLimitExceeded,
},
} {
withBuf := func(base []byte) {
rr, _ := newTestReader(c.in)
rr.SingleReadSizeLimit = c.limit
buf, err := rr.ReadVerbatimString(base)
assertReadResultEqual(t, append(base, c.s...), buf, c.err, err)
}
withBuf(nil)
withBuf([]byte("existing data"))
}
}
func TestReaderReadCrashers(t *testing.T) {
files, err := filepath.Glob(filepath.Join("testdata", "crashers", "*.quoted"))
if err != nil {
t.Fatalf("failed to get crashers: %s", err)
}
for _, file := range files {
name := filepath.Base(file)
name = name[:len(name)-len(filepath.Ext(file))]
t.Run(name, func(t *testing.T) {
b, err := ioutil.ReadFile(file)
if err != nil {
t.Fatalf("failed to read %s: %s", file, err)
}
in, err := strconv.Unquote(string(bytes.TrimSpace(b)))
if err != nil {
t.Fatalf("invalid input: %s", string(b))
}
for _, f := range fuzz.ReaderFuncs {
t.Run(f.Name, func(t *testing.T) {
rr := resp3.NewReader(strings.NewReader(in))
_ = f.Func(rr)
})
}
})
}
}
func BenchmarkReaderRead(b *testing.B) {
b.Run("Array", makeReadAggregationBenchmark(resp3.TypeArray, (*resp3.Reader).ReadArrayHeader))
b.Run("Attribute", makeReadAggregationBenchmark(resp3.TypeAttribute, (*resp3.Reader).ReadAttributeHeader))
b.Run("BigNumber", benchmarkReadBigNumber)
b.Run("Boolean", benchmarkReadBoolean)
b.Run("Double", benchmarkReadDouble)
b.Run("BlobError", makeReadBlobBenchmark(resp3.TypeBlobError, (*resp3.Reader).ReadBlobError))
b.Run("BlobString", makeReadBlobBenchmark(resp3.TypeBlobString, (*resp3.Reader).ReadBlobString))
b.Run("BlobChunk", benchmarkReadBlobChunk)
b.Run("BlobChunks", benchmarkReadBlobChunks)
b.Run("End", benchmarkReadEnd)
b.Run("Map", makeReadAggregationBenchmark(resp3.TypeMap, (*resp3.Reader).ReadMapHeader))
b.Run("Null", benchmarkReadNull)
b.Run("Number", benchmarkReadNumber)
b.Run("Push", makeReadAggregationBenchmark(resp3.TypePush, (*resp3.Reader).ReadPushHeader))
b.Run("Set", makeReadAggregationBenchmark(resp3.TypeSet, (*resp3.Reader).ReadSetHeader))
b.Run("SimpleError", makeReadSimpleBenchmark(resp3.TypeSimpleError, (*resp3.Reader).ReadSimpleError))
b.Run("SimpleString", makeReadSimpleBenchmark(resp3.TypeSimpleString, (*resp3.Reader).ReadSimpleString))
b.Run("VerbatimString", benchmarkReadVerbatimString)
}
func makeReadAggregationBenchmark(ty resp3.Type, readHeader func(*resp3.Reader) (int64, bool, error)) func(*testing.B) {
return func(b *testing.B) {
b.Run("Fixed", func(b *testing.B) {
in := string(ty) + "16\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _, _ = readHeader(rr)
}
})
b.Run("Streamed", func(b *testing.B) {
in := string(ty) + "?\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _, _ = readHeader(rr)
}
})
}
}
func makeReadBlobBenchmark(ty resp3.Type, readBlob func(*resp3.Reader, []byte) ([]byte, bool, error)) func(*testing.B) {
return func(b *testing.B) {
b.Run("Fixed", func(b *testing.B) {
var buf [32]byte
in := string(ty) + "32\r\nhello world! what's up? kthxbye!\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _, _ = readBlob(rr, buf[:0])
}
})
b.Run("Streamed", func(b *testing.B) {
in := string(ty) + "?\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _, _ = readBlob(rr, nil)
}
})
}
}
func makeReadSimpleBenchmark(ty resp3.Type, readSimple func(*resp3.Reader, []byte) ([]byte, error)) func(*testing.B) {
return func(b *testing.B) {
var buf [32 + len("\r\n")]byte
in := string(ty) + "hello world! what's up? kthxbye!\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _ = readSimple(rr, buf[:0])
}
}
}
func benchmarkReadBigNumber(b *testing.B) {
in := string(resp3.TypeBigNumber) + "123456789123456789123456789123456789\r\n"
rr, reset := newTestReader(in)
n := new(big.Int)
for i := 0; i < b.N; i++ {
reset(in)
_ = rr.ReadBigNumber(n)
}
}
func benchmarkReadBoolean(b *testing.B) {
in := string(resp3.TypeBoolean) + "t\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _ = rr.ReadBoolean()
}
}
func benchmarkReadDouble(b *testing.B) {
in := string(resp3.TypeDouble) + "1234.5678\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _ = rr.ReadDouble()
}
}
func benchmarkReadBlobChunk(b *testing.B) {
b.Run("Chunk", func(b *testing.B) {
var buf [32]byte
in := string(resp3.TypeBlobChunk) + "32\r\nhello world! what's up? kthxbye!\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _, _ = rr.ReadBlobChunk(buf[:0])
}
})
b.Run("End", func(b *testing.B) {
in := string(resp3.TypeBlobChunk) + "0\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _, _ = rr.ReadBlobChunk(nil)
}
})
}
func benchmarkReadBlobChunks(b *testing.B) {
var buf [32]byte
in := string(resp3.TypeBlobChunk) + "5\r\nhello\r\n" +
string(resp3.TypeBlobChunk) + "1\r\n \r\n" +
string(resp3.TypeBlobChunk) + "5\r\nworld\r\n" +
string(resp3.TypeBlobChunk) + "10\r\nwhat's up?\r\n" +
string(resp3.TypeBlobChunk) + "1\r\n \r\n" +
string(resp3.TypeBlobChunk) + "8\r\nkthxbye!\r\n" +
string(resp3.TypeBlobChunk) + "0\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_, _ = rr.ReadBlobChunks(buf[:0])
}
}
func benchmarkReadEnd(b *testing.B) {
in := string(resp3.TypeEnd) + "\r\n"
rr, reset := newTestReader(in)
for i := 0; i < b.N; i++ {
reset(in)
_ = rr.ReadEnd()
}
}