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Diffstat (limited to 'src/pkg/encoding/binary/binary_test.go')
-rw-r--r--src/pkg/encoding/binary/binary_test.go397
1 files changed, 0 insertions, 397 deletions
diff --git a/src/pkg/encoding/binary/binary_test.go b/src/pkg/encoding/binary/binary_test.go
deleted file mode 100644
index c80c90383..000000000
--- a/src/pkg/encoding/binary/binary_test.go
+++ /dev/null
@@ -1,397 +0,0 @@
-// Copyright 2009 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 binary
-
-import (
- "bytes"
- "io"
- "math"
- "reflect"
- "strings"
- "testing"
-)
-
-type Struct struct {
- Int8 int8
- Int16 int16
- Int32 int32
- Int64 int64
- Uint8 uint8
- Uint16 uint16
- Uint32 uint32
- Uint64 uint64
- Float32 float32
- Float64 float64
- Complex64 complex64
- Complex128 complex128
- Array [4]uint8
-}
-
-type T struct {
- Int int
- Uint uint
- Uintptr uintptr
- Array [4]int
-}
-
-var s = Struct{
- 0x01,
- 0x0203,
- 0x04050607,
- 0x08090a0b0c0d0e0f,
- 0x10,
- 0x1112,
- 0x13141516,
- 0x1718191a1b1c1d1e,
-
- math.Float32frombits(0x1f202122),
- math.Float64frombits(0x232425262728292a),
- complex(
- math.Float32frombits(0x2b2c2d2e),
- math.Float32frombits(0x2f303132),
- ),
- complex(
- math.Float64frombits(0x333435363738393a),
- math.Float64frombits(0x3b3c3d3e3f404142),
- ),
-
- [4]uint8{0x43, 0x44, 0x45, 0x46},
-}
-
-var big = []byte{
- 1,
- 2, 3,
- 4, 5, 6, 7,
- 8, 9, 10, 11, 12, 13, 14, 15,
- 16,
- 17, 18,
- 19, 20, 21, 22,
- 23, 24, 25, 26, 27, 28, 29, 30,
-
- 31, 32, 33, 34,
- 35, 36, 37, 38, 39, 40, 41, 42,
- 43, 44, 45, 46, 47, 48, 49, 50,
- 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66,
-
- 67, 68, 69, 70,
-}
-
-var little = []byte{
- 1,
- 3, 2,
- 7, 6, 5, 4,
- 15, 14, 13, 12, 11, 10, 9, 8,
- 16,
- 18, 17,
- 22, 21, 20, 19,
- 30, 29, 28, 27, 26, 25, 24, 23,
-
- 34, 33, 32, 31,
- 42, 41, 40, 39, 38, 37, 36, 35,
- 46, 45, 44, 43, 50, 49, 48, 47,
- 58, 57, 56, 55, 54, 53, 52, 51, 66, 65, 64, 63, 62, 61, 60, 59,
-
- 67, 68, 69, 70,
-}
-
-var src = []byte{1, 2, 3, 4, 5, 6, 7, 8}
-var res = []int32{0x01020304, 0x05060708}
-
-func checkResult(t *testing.T, dir string, order ByteOrder, err error, have, want interface{}) {
- if err != nil {
- t.Errorf("%v %v: %v", dir, order, err)
- return
- }
- if !reflect.DeepEqual(have, want) {
- t.Errorf("%v %v:\n\thave %+v\n\twant %+v", dir, order, have, want)
- }
-}
-
-func testRead(t *testing.T, order ByteOrder, b []byte, s1 interface{}) {
- var s2 Struct
- err := Read(bytes.NewReader(b), order, &s2)
- checkResult(t, "Read", order, err, s2, s1)
-}
-
-func testWrite(t *testing.T, order ByteOrder, b []byte, s1 interface{}) {
- buf := new(bytes.Buffer)
- err := Write(buf, order, s1)
- checkResult(t, "Write", order, err, buf.Bytes(), b)
-}
-
-func TestLittleEndianRead(t *testing.T) { testRead(t, LittleEndian, little, s) }
-func TestLittleEndianWrite(t *testing.T) { testWrite(t, LittleEndian, little, s) }
-func TestLittleEndianPtrWrite(t *testing.T) { testWrite(t, LittleEndian, little, &s) }
-
-func TestBigEndianRead(t *testing.T) { testRead(t, BigEndian, big, s) }
-func TestBigEndianWrite(t *testing.T) { testWrite(t, BigEndian, big, s) }
-func TestBigEndianPtrWrite(t *testing.T) { testWrite(t, BigEndian, big, &s) }
-
-func TestReadSlice(t *testing.T) {
- slice := make([]int32, 2)
- err := Read(bytes.NewReader(src), BigEndian, slice)
- checkResult(t, "ReadSlice", BigEndian, err, slice, res)
-}
-
-func TestWriteSlice(t *testing.T) {
- buf := new(bytes.Buffer)
- err := Write(buf, BigEndian, res)
- checkResult(t, "WriteSlice", BigEndian, err, buf.Bytes(), src)
-}
-
-// Addresses of arrays are easier to manipulate with reflection than are slices.
-var intArrays = []interface{}{
- &[100]int8{},
- &[100]int16{},
- &[100]int32{},
- &[100]int64{},
- &[100]uint8{},
- &[100]uint16{},
- &[100]uint32{},
- &[100]uint64{},
-}
-
-func TestSliceRoundTrip(t *testing.T) {
- buf := new(bytes.Buffer)
- for _, array := range intArrays {
- src := reflect.ValueOf(array).Elem()
- unsigned := false
- switch src.Index(0).Kind() {
- case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
- unsigned = true
- }
- for i := 0; i < src.Len(); i++ {
- if unsigned {
- src.Index(i).SetUint(uint64(i * 0x07654321))
- } else {
- src.Index(i).SetInt(int64(i * 0x07654321))
- }
- }
- buf.Reset()
- srcSlice := src.Slice(0, src.Len())
- err := Write(buf, BigEndian, srcSlice.Interface())
- if err != nil {
- t.Fatal(err)
- }
- dst := reflect.New(src.Type()).Elem()
- dstSlice := dst.Slice(0, dst.Len())
- err = Read(buf, BigEndian, dstSlice.Interface())
- if err != nil {
- t.Fatal(err)
- }
- if !reflect.DeepEqual(src.Interface(), dst.Interface()) {
- t.Fatal(src)
- }
- }
-}
-
-func TestWriteT(t *testing.T) {
- buf := new(bytes.Buffer)
- ts := T{}
- if err := Write(buf, BigEndian, ts); err == nil {
- t.Errorf("WriteT: have err == nil, want non-nil")
- }
-
- tv := reflect.Indirect(reflect.ValueOf(ts))
- for i, n := 0, tv.NumField(); i < n; i++ {
- typ := tv.Field(i).Type().String()
- if typ == "[4]int" {
- typ = "int" // the problem is int, not the [4]
- }
- if err := Write(buf, BigEndian, tv.Field(i).Interface()); err == nil {
- t.Errorf("WriteT.%v: have err == nil, want non-nil", tv.Field(i).Type())
- } else if !strings.Contains(err.Error(), typ) {
- t.Errorf("WriteT: have err == %q, want it to mention %s", err, typ)
- }
- }
-}
-
-type BlankFields struct {
- A uint32
- _ int32
- B float64
- _ [4]int16
- C byte
- _ [7]byte
- _ struct {
- f [8]float32
- }
-}
-
-type BlankFieldsProbe struct {
- A uint32
- P0 int32
- B float64
- P1 [4]int16
- C byte
- P2 [7]byte
- P3 struct {
- F [8]float32
- }
-}
-
-func TestBlankFields(t *testing.T) {
- buf := new(bytes.Buffer)
- b1 := BlankFields{A: 1234567890, B: 2.718281828, C: 42}
- if err := Write(buf, LittleEndian, &b1); err != nil {
- t.Error(err)
- }
-
- // zero values must have been written for blank fields
- var p BlankFieldsProbe
- if err := Read(buf, LittleEndian, &p); err != nil {
- t.Error(err)
- }
-
- // quick test: only check first value of slices
- if p.P0 != 0 || p.P1[0] != 0 || p.P2[0] != 0 || p.P3.F[0] != 0 {
- t.Errorf("non-zero values for originally blank fields: %#v", p)
- }
-
- // write p and see if we can probe only some fields
- if err := Write(buf, LittleEndian, &p); err != nil {
- t.Error(err)
- }
-
- // read should ignore blank fields in b2
- var b2 BlankFields
- if err := Read(buf, LittleEndian, &b2); err != nil {
- t.Error(err)
- }
- if b1.A != b2.A || b1.B != b2.B || b1.C != b2.C {
- t.Errorf("%#v != %#v", b1, b2)
- }
-}
-
-// An attempt to read into a struct with an unexported field will
-// panic. This is probably not the best choice, but at this point
-// anything else would be an API change.
-
-type Unexported struct {
- a int32
-}
-
-func TestUnexportedRead(t *testing.T) {
- var buf bytes.Buffer
- u1 := Unexported{a: 1}
- if err := Write(&buf, LittleEndian, &u1); err != nil {
- t.Fatal(err)
- }
-
- defer func() {
- if recover() == nil {
- t.Fatal("did not panic")
- }
- }()
- var u2 Unexported
- Read(&buf, LittleEndian, &u2)
-}
-
-type byteSliceReader struct {
- remain []byte
-}
-
-func (br *byteSliceReader) Read(p []byte) (int, error) {
- n := copy(p, br.remain)
- br.remain = br.remain[n:]
- return n, nil
-}
-
-func BenchmarkReadSlice1000Int32s(b *testing.B) {
- bsr := &byteSliceReader{}
- slice := make([]int32, 1000)
- buf := make([]byte, len(slice)*4)
- b.SetBytes(int64(len(buf)))
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- bsr.remain = buf
- Read(bsr, BigEndian, slice)
- }
-}
-
-func BenchmarkReadStruct(b *testing.B) {
- bsr := &byteSliceReader{}
- var buf bytes.Buffer
- Write(&buf, BigEndian, &s)
- n, _ := dataSize(reflect.ValueOf(s))
- b.SetBytes(int64(n))
- t := s
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- bsr.remain = buf.Bytes()
- Read(bsr, BigEndian, &t)
- }
- b.StopTimer()
- if !reflect.DeepEqual(s, t) {
- b.Fatal("no match")
- }
-}
-
-func BenchmarkReadInts(b *testing.B) {
- var ls Struct
- bsr := &byteSliceReader{}
- var r io.Reader = bsr
- b.SetBytes(2 * (1 + 2 + 4 + 8))
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- bsr.remain = big
- Read(r, BigEndian, &ls.Int8)
- Read(r, BigEndian, &ls.Int16)
- Read(r, BigEndian, &ls.Int32)
- Read(r, BigEndian, &ls.Int64)
- Read(r, BigEndian, &ls.Uint8)
- Read(r, BigEndian, &ls.Uint16)
- Read(r, BigEndian, &ls.Uint32)
- Read(r, BigEndian, &ls.Uint64)
- }
-
- want := s
- want.Float32 = 0
- want.Float64 = 0
- want.Complex64 = 0
- want.Complex128 = 0
- for i := range want.Array {
- want.Array[i] = 0
- }
- b.StopTimer()
- if !reflect.DeepEqual(ls, want) {
- panic("no match")
- }
-}
-
-func BenchmarkWriteInts(b *testing.B) {
- buf := new(bytes.Buffer)
- var w io.Writer = buf
- b.SetBytes(2 * (1 + 2 + 4 + 8))
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- buf.Reset()
- Write(w, BigEndian, s.Int8)
- Write(w, BigEndian, s.Int16)
- Write(w, BigEndian, s.Int32)
- Write(w, BigEndian, s.Int64)
- Write(w, BigEndian, s.Uint8)
- Write(w, BigEndian, s.Uint16)
- Write(w, BigEndian, s.Uint32)
- Write(w, BigEndian, s.Uint64)
- }
- b.StopTimer()
- if !bytes.Equal(buf.Bytes(), big[:30]) {
- b.Fatalf("first half doesn't match: %x %x", buf.Bytes(), big[:30])
- }
-}
-
-func BenchmarkWriteSlice1000Int32s(b *testing.B) {
- slice := make([]int32, 1000)
- buf := new(bytes.Buffer)
- var w io.Writer = buf
- b.SetBytes(4 * 1000)
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- buf.Reset()
- Write(w, BigEndian, slice)
- }
- b.StopTimer()
-}