7a9389330e
gcc/: * gcc.c (default_compilers): Add entry for ".go". * common.opt: Add -static-libgo as a driver option. * doc/install.texi (Configuration): Mention libgo as an option for --enable-shared. Mention go as an option for --enable-languages. * doc/invoke.texi (Overall Options): Mention .go as a file name suffix. Mention go as a -x option. * doc/frontends.texi (G++ and GCC): Mention Go as a supported language. * doc/sourcebuild.texi (Top Level): Mention libgo. * doc/standards.texi (Standards): Add section on Go language. Move references for other languages into their own section. * doc/contrib.texi (Contributors): Mention that I contributed the Go frontend. gcc/testsuite/: * lib/go.exp: New file. * lib/go-dg.exp: New file. * lib/go-torture.exp: New file. * lib/target-supports.exp (check_compile): Match // Go. From-SVN: r167407
1364 lines
31 KiB
Go
1364 lines
31 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package gob
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import (
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"bytes"
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"math"
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"os"
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"reflect"
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"strings"
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"testing"
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"unsafe"
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)
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// Guarantee encoding format by comparing some encodings to hand-written values
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type EncodeT struct {
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x uint64
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b []byte
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}
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var encodeT = []EncodeT{
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{0x00, []byte{0x00}},
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{0x0F, []byte{0x0F}},
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{0xFF, []byte{0xFF, 0xFF}},
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{0xFFFF, []byte{0xFE, 0xFF, 0xFF}},
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{0xFFFFFF, []byte{0xFD, 0xFF, 0xFF, 0xFF}},
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{0xFFFFFFFF, []byte{0xFC, 0xFF, 0xFF, 0xFF, 0xFF}},
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{0xFFFFFFFFFF, []byte{0xFB, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}},
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{0xFFFFFFFFFFFF, []byte{0xFA, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}},
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{0xFFFFFFFFFFFFFF, []byte{0xF9, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}},
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{0xFFFFFFFFFFFFFFFF, []byte{0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}},
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{0x1111, []byte{0xFE, 0x11, 0x11}},
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{0x1111111111111111, []byte{0xF8, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11}},
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{0x8888888888888888, []byte{0xF8, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88}},
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{1 << 63, []byte{0xF8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
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}
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// testError is meant to be used as a deferred function to turn a panic(gobError) into a
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// plain test.Error call.
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func testError(t *testing.T) {
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if e := recover(); e != nil {
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t.Error(e.(gobError).Error) // Will re-panic if not one of our errors, such as a runtime error.
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}
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return
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}
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// Test basic encode/decode routines for unsigned integers
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func TestUintCodec(t *testing.T) {
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defer testError(t)
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b := new(bytes.Buffer)
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encState := newEncoderState(nil, b)
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for _, tt := range encodeT {
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b.Reset()
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encodeUint(encState, tt.x)
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if !bytes.Equal(tt.b, b.Bytes()) {
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t.Errorf("encodeUint: %#x encode: expected % x got % x", tt.x, tt.b, b.Bytes())
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}
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}
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decState := newDecodeState(nil, &b)
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for u := uint64(0); ; u = (u + 1) * 7 {
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b.Reset()
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encodeUint(encState, u)
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v := decodeUint(decState)
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if u != v {
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t.Errorf("Encode/Decode: sent %#x received %#x", u, v)
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}
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if u&(1<<63) != 0 {
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break
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}
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}
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}
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func verifyInt(i int64, t *testing.T) {
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defer testError(t)
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var b = new(bytes.Buffer)
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encState := newEncoderState(nil, b)
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encodeInt(encState, i)
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decState := newDecodeState(nil, &b)
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decState.buf = make([]byte, 8)
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j := decodeInt(decState)
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if i != j {
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t.Errorf("Encode/Decode: sent %#x received %#x", uint64(i), uint64(j))
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}
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}
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// Test basic encode/decode routines for signed integers
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func TestIntCodec(t *testing.T) {
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for u := uint64(0); ; u = (u + 1) * 7 {
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// Do positive and negative values
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i := int64(u)
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verifyInt(i, t)
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verifyInt(-i, t)
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verifyInt(^i, t)
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if u&(1<<63) != 0 {
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break
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}
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}
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verifyInt(-1<<63, t) // a tricky case
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}
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// The result of encoding a true boolean with field number 7
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var boolResult = []byte{0x07, 0x01}
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// The result of encoding a number 17 with field number 7
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var signedResult = []byte{0x07, 2 * 17}
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var unsignedResult = []byte{0x07, 17}
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var floatResult = []byte{0x07, 0xFE, 0x31, 0x40}
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// The result of encoding a number 17+19i with field number 7
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var complexResult = []byte{0x07, 0xFE, 0x31, 0x40, 0xFE, 0x33, 0x40}
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// The result of encoding "hello" with field number 7
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var bytesResult = []byte{0x07, 0x05, 'h', 'e', 'l', 'l', 'o'}
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func newencoderState(b *bytes.Buffer) *encoderState {
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b.Reset()
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state := newEncoderState(nil, b)
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state.fieldnum = -1
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return state
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}
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// Test instruction execution for encoding.
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// Do not run the machine yet; instead do individual instructions crafted by hand.
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func TestScalarEncInstructions(t *testing.T) {
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var b = new(bytes.Buffer)
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// bool
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{
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data := struct{ a bool }{true}
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instr := &encInstr{encBool, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(boolResult, b.Bytes()) {
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t.Errorf("bool enc instructions: expected % x got % x", boolResult, b.Bytes())
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}
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}
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// int
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{
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b.Reset()
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data := struct{ a int }{17}
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instr := &encInstr{encInt, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(signedResult, b.Bytes()) {
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t.Errorf("int enc instructions: expected % x got % x", signedResult, b.Bytes())
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}
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}
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// uint
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{
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b.Reset()
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data := struct{ a uint }{17}
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instr := &encInstr{encUint, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(unsignedResult, b.Bytes()) {
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t.Errorf("uint enc instructions: expected % x got % x", unsignedResult, b.Bytes())
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}
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}
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// int8
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{
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b.Reset()
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data := struct{ a int8 }{17}
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instr := &encInstr{encInt8, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(signedResult, b.Bytes()) {
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t.Errorf("int8 enc instructions: expected % x got % x", signedResult, b.Bytes())
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}
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}
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// uint8
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{
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b.Reset()
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data := struct{ a uint8 }{17}
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instr := &encInstr{encUint8, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(unsignedResult, b.Bytes()) {
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t.Errorf("uint8 enc instructions: expected % x got % x", unsignedResult, b.Bytes())
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}
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}
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// int16
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{
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b.Reset()
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data := struct{ a int16 }{17}
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instr := &encInstr{encInt16, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(signedResult, b.Bytes()) {
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t.Errorf("int16 enc instructions: expected % x got % x", signedResult, b.Bytes())
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}
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}
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// uint16
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{
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b.Reset()
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data := struct{ a uint16 }{17}
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instr := &encInstr{encUint16, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(unsignedResult, b.Bytes()) {
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t.Errorf("uint16 enc instructions: expected % x got % x", unsignedResult, b.Bytes())
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}
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}
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// int32
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{
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b.Reset()
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data := struct{ a int32 }{17}
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instr := &encInstr{encInt32, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(signedResult, b.Bytes()) {
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t.Errorf("int32 enc instructions: expected % x got % x", signedResult, b.Bytes())
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}
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}
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// uint32
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{
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b.Reset()
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data := struct{ a uint32 }{17}
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instr := &encInstr{encUint32, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(unsignedResult, b.Bytes()) {
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t.Errorf("uint32 enc instructions: expected % x got % x", unsignedResult, b.Bytes())
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}
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}
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// int64
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{
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b.Reset()
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data := struct{ a int64 }{17}
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instr := &encInstr{encInt64, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(signedResult, b.Bytes()) {
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t.Errorf("int64 enc instructions: expected % x got % x", signedResult, b.Bytes())
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}
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}
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// uint64
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{
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b.Reset()
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data := struct{ a uint64 }{17}
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instr := &encInstr{encUint64, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(unsignedResult, b.Bytes()) {
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t.Errorf("uint64 enc instructions: expected % x got % x", unsignedResult, b.Bytes())
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}
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}
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// float
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{
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b.Reset()
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data := struct{ a float }{17}
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instr := &encInstr{encFloat, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(floatResult, b.Bytes()) {
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t.Errorf("float enc instructions: expected % x got % x", floatResult, b.Bytes())
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}
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}
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// float32
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{
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b.Reset()
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data := struct{ a float32 }{17}
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instr := &encInstr{encFloat32, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(floatResult, b.Bytes()) {
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t.Errorf("float32 enc instructions: expected % x got % x", floatResult, b.Bytes())
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}
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}
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// float64
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{
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b.Reset()
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data := struct{ a float64 }{17}
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instr := &encInstr{encFloat64, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(floatResult, b.Bytes()) {
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t.Errorf("float64 enc instructions: expected % x got % x", floatResult, b.Bytes())
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}
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}
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// bytes == []uint8
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{
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b.Reset()
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data := struct{ a []byte }{[]byte("hello")}
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instr := &encInstr{encUint8Array, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(bytesResult, b.Bytes()) {
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t.Errorf("bytes enc instructions: expected % x got % x", bytesResult, b.Bytes())
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}
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}
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// string
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{
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b.Reset()
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data := struct{ a string }{"hello"}
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instr := &encInstr{encString, 6, 0, 0}
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state := newencoderState(b)
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instr.op(instr, state, unsafe.Pointer(&data))
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if !bytes.Equal(bytesResult, b.Bytes()) {
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t.Errorf("string enc instructions: expected % x got % x", bytesResult, b.Bytes())
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}
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}
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}
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func execDec(typ string, instr *decInstr, state *decodeState, t *testing.T, p unsafe.Pointer) {
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defer testError(t)
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v := int(decodeUint(state))
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if v+state.fieldnum != 6 {
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t.Fatalf("decoding field number %d, got %d", 6, v+state.fieldnum)
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}
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instr.op(instr, state, decIndirect(p, instr.indir))
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state.fieldnum = 6
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}
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func newDecodeStateFromData(data []byte) *decodeState {
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b := bytes.NewBuffer(data)
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state := newDecodeState(nil, &b)
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state.fieldnum = -1
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return state
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}
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// Test instruction execution for decoding.
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// Do not run the machine yet; instead do individual instructions crafted by hand.
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func TestScalarDecInstructions(t *testing.T) {
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ovfl := os.ErrorString("overflow")
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// bool
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{
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var data struct {
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a bool
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}
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instr := &decInstr{decBool, 6, 0, 0, ovfl}
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state := newDecodeStateFromData(boolResult)
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execDec("bool", instr, state, t, unsafe.Pointer(&data))
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if data.a != true {
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t.Errorf("bool a = %v not true", data.a)
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}
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}
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// int
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{
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var data struct {
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a int
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}
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instr := &decInstr{decOpMap[reflect.Int], 6, 0, 0, ovfl}
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state := newDecodeStateFromData(signedResult)
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execDec("int", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("int a = %v not 17", data.a)
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}
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}
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// uint
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{
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var data struct {
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a uint
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}
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instr := &decInstr{decOpMap[reflect.Uint], 6, 0, 0, ovfl}
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state := newDecodeStateFromData(unsignedResult)
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execDec("uint", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("uint a = %v not 17", data.a)
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}
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}
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// int8
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{
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var data struct {
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a int8
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}
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instr := &decInstr{decInt8, 6, 0, 0, ovfl}
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state := newDecodeStateFromData(signedResult)
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execDec("int8", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("int8 a = %v not 17", data.a)
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}
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}
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// uint8
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{
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var data struct {
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a uint8
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}
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instr := &decInstr{decUint8, 6, 0, 0, ovfl}
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state := newDecodeStateFromData(unsignedResult)
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execDec("uint8", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("uint8 a = %v not 17", data.a)
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}
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}
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// int16
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{
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var data struct {
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a int16
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}
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instr := &decInstr{decInt16, 6, 0, 0, ovfl}
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state := newDecodeStateFromData(signedResult)
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execDec("int16", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("int16 a = %v not 17", data.a)
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}
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}
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// uint16
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{
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var data struct {
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a uint16
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}
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instr := &decInstr{decUint16, 6, 0, 0, ovfl}
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state := newDecodeStateFromData(unsignedResult)
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execDec("uint16", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("uint16 a = %v not 17", data.a)
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}
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}
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// int32
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{
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var data struct {
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a int32
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}
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instr := &decInstr{decInt32, 6, 0, 0, ovfl}
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state := newDecodeStateFromData(signedResult)
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execDec("int32", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("int32 a = %v not 17", data.a)
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}
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}
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|
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// uint32
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{
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var data struct {
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a uint32
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}
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instr := &decInstr{decUint32, 6, 0, 0, ovfl}
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state := newDecodeStateFromData(unsignedResult)
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execDec("uint32", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("uint32 a = %v not 17", data.a)
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}
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}
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|
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// uintptr
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{
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var data struct {
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a uintptr
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}
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instr := &decInstr{decOpMap[reflect.Uintptr], 6, 0, 0, ovfl}
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state := newDecodeStateFromData(unsignedResult)
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execDec("uintptr", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("uintptr a = %v not 17", data.a)
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}
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}
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|
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// int64
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{
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var data struct {
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a int64
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}
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instr := &decInstr{decInt64, 6, 0, 0, ovfl}
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state := newDecodeStateFromData(signedResult)
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execDec("int64", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("int64 a = %v not 17", data.a)
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}
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}
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|
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// uint64
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{
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var data struct {
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a uint64
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}
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instr := &decInstr{decUint64, 6, 0, 0, ovfl}
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state := newDecodeStateFromData(unsignedResult)
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execDec("uint64", instr, state, t, unsafe.Pointer(&data))
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if data.a != 17 {
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t.Errorf("uint64 a = %v not 17", data.a)
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}
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}
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// float
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{
|
|
var data struct {
|
|
a float
|
|
}
|
|
instr := &decInstr{decOpMap[reflect.Float], 6, 0, 0, ovfl}
|
|
state := newDecodeStateFromData(floatResult)
|
|
execDec("float", instr, state, t, unsafe.Pointer(&data))
|
|
if data.a != 17 {
|
|
t.Errorf("float a = %v not 17", data.a)
|
|
}
|
|
}
|
|
|
|
// float32
|
|
{
|
|
var data struct {
|
|
a float32
|
|
}
|
|
instr := &decInstr{decFloat32, 6, 0, 0, ovfl}
|
|
state := newDecodeStateFromData(floatResult)
|
|
execDec("float32", instr, state, t, unsafe.Pointer(&data))
|
|
if data.a != 17 {
|
|
t.Errorf("float32 a = %v not 17", data.a)
|
|
}
|
|
}
|
|
|
|
// float64
|
|
{
|
|
var data struct {
|
|
a float64
|
|
}
|
|
instr := &decInstr{decFloat64, 6, 0, 0, ovfl}
|
|
state := newDecodeStateFromData(floatResult)
|
|
execDec("float64", instr, state, t, unsafe.Pointer(&data))
|
|
if data.a != 17 {
|
|
t.Errorf("float64 a = %v not 17", data.a)
|
|
}
|
|
}
|
|
|
|
// complex
|
|
{
|
|
var data struct {
|
|
a complex
|
|
}
|
|
instr := &decInstr{decOpMap[reflect.Complex], 6, 0, 0, ovfl}
|
|
state := newDecodeStateFromData(complexResult)
|
|
execDec("complex", instr, state, t, unsafe.Pointer(&data))
|
|
if data.a != 17+19i {
|
|
t.Errorf("complex a = %v not 17+19i", data.a)
|
|
}
|
|
}
|
|
|
|
// complex64
|
|
{
|
|
var data struct {
|
|
a complex64
|
|
}
|
|
instr := &decInstr{decOpMap[reflect.Complex64], 6, 0, 0, ovfl}
|
|
state := newDecodeStateFromData(complexResult)
|
|
execDec("complex", instr, state, t, unsafe.Pointer(&data))
|
|
if data.a != 17+19i {
|
|
t.Errorf("complex a = %v not 17+19i", data.a)
|
|
}
|
|
}
|
|
|
|
// complex128
|
|
{
|
|
var data struct {
|
|
a complex128
|
|
}
|
|
instr := &decInstr{decOpMap[reflect.Complex128], 6, 0, 0, ovfl}
|
|
state := newDecodeStateFromData(complexResult)
|
|
execDec("complex", instr, state, t, unsafe.Pointer(&data))
|
|
if data.a != 17+19i {
|
|
t.Errorf("complex a = %v not 17+19i", data.a)
|
|
}
|
|
}
|
|
|
|
// bytes == []uint8
|
|
{
|
|
var data struct {
|
|
a []byte
|
|
}
|
|
instr := &decInstr{decUint8Array, 6, 0, 0, ovfl}
|
|
state := newDecodeStateFromData(bytesResult)
|
|
execDec("bytes", instr, state, t, unsafe.Pointer(&data))
|
|
if string(data.a) != "hello" {
|
|
t.Errorf(`bytes a = %q not "hello"`, string(data.a))
|
|
}
|
|
}
|
|
|
|
// string
|
|
{
|
|
var data struct {
|
|
a string
|
|
}
|
|
instr := &decInstr{decString, 6, 0, 0, ovfl}
|
|
state := newDecodeStateFromData(bytesResult)
|
|
execDec("bytes", instr, state, t, unsafe.Pointer(&data))
|
|
if data.a != "hello" {
|
|
t.Errorf(`bytes a = %q not "hello"`, data.a)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestEndToEnd(t *testing.T) {
|
|
type T2 struct {
|
|
t string
|
|
}
|
|
s1 := "string1"
|
|
s2 := "string2"
|
|
type T1 struct {
|
|
a, b, c int
|
|
m map[string]*float
|
|
n *[3]float
|
|
strs *[2]string
|
|
int64s *[]int64
|
|
ri complex64
|
|
s string
|
|
y []byte
|
|
t *T2
|
|
}
|
|
pi := 3.14159
|
|
e := 2.71828
|
|
t1 := &T1{
|
|
a: 17,
|
|
b: 18,
|
|
c: -5,
|
|
m: map[string]*float{"pi": &pi, "e": &e},
|
|
n: &[3]float{1.5, 2.5, 3.5},
|
|
strs: &[2]string{s1, s2},
|
|
int64s: &[]int64{77, 89, 123412342134},
|
|
ri: 17 - 23i,
|
|
s: "Now is the time",
|
|
y: []byte("hello, sailor"),
|
|
t: &T2{"this is T2"},
|
|
}
|
|
b := new(bytes.Buffer)
|
|
err := NewEncoder(b).Encode(t1)
|
|
if err != nil {
|
|
t.Error("encode:", err)
|
|
}
|
|
var _t1 T1
|
|
err = NewDecoder(b).Decode(&_t1)
|
|
if err != nil {
|
|
t.Fatal("decode:", err)
|
|
}
|
|
if !reflect.DeepEqual(t1, &_t1) {
|
|
t.Errorf("encode expected %v got %v", *t1, _t1)
|
|
}
|
|
}
|
|
|
|
func TestOverflow(t *testing.T) {
|
|
type inputT struct {
|
|
maxi int64
|
|
mini int64
|
|
maxu uint64
|
|
maxf float64
|
|
minf float64
|
|
maxc complex128
|
|
minc complex128
|
|
}
|
|
var it inputT
|
|
var err os.Error
|
|
b := new(bytes.Buffer)
|
|
enc := NewEncoder(b)
|
|
dec := NewDecoder(b)
|
|
|
|
// int8
|
|
b.Reset()
|
|
it = inputT{
|
|
maxi: math.MaxInt8 + 1,
|
|
}
|
|
type outi8 struct {
|
|
maxi int8
|
|
mini int8
|
|
}
|
|
var o1 outi8
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o1)
|
|
if err == nil || err.String() != `value for "maxi" out of range` {
|
|
t.Error("wrong overflow error for int8:", err)
|
|
}
|
|
it = inputT{
|
|
mini: math.MinInt8 - 1,
|
|
}
|
|
b.Reset()
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o1)
|
|
if err == nil || err.String() != `value for "mini" out of range` {
|
|
t.Error("wrong underflow error for int8:", err)
|
|
}
|
|
|
|
// int16
|
|
b.Reset()
|
|
it = inputT{
|
|
maxi: math.MaxInt16 + 1,
|
|
}
|
|
type outi16 struct {
|
|
maxi int16
|
|
mini int16
|
|
}
|
|
var o2 outi16
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o2)
|
|
if err == nil || err.String() != `value for "maxi" out of range` {
|
|
t.Error("wrong overflow error for int16:", err)
|
|
}
|
|
it = inputT{
|
|
mini: math.MinInt16 - 1,
|
|
}
|
|
b.Reset()
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o2)
|
|
if err == nil || err.String() != `value for "mini" out of range` {
|
|
t.Error("wrong underflow error for int16:", err)
|
|
}
|
|
|
|
// int32
|
|
b.Reset()
|
|
it = inputT{
|
|
maxi: math.MaxInt32 + 1,
|
|
}
|
|
type outi32 struct {
|
|
maxi int32
|
|
mini int32
|
|
}
|
|
var o3 outi32
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o3)
|
|
if err == nil || err.String() != `value for "maxi" out of range` {
|
|
t.Error("wrong overflow error for int32:", err)
|
|
}
|
|
it = inputT{
|
|
mini: math.MinInt32 - 1,
|
|
}
|
|
b.Reset()
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o3)
|
|
if err == nil || err.String() != `value for "mini" out of range` {
|
|
t.Error("wrong underflow error for int32:", err)
|
|
}
|
|
|
|
// uint8
|
|
b.Reset()
|
|
it = inputT{
|
|
maxu: math.MaxUint8 + 1,
|
|
}
|
|
type outu8 struct {
|
|
maxu uint8
|
|
}
|
|
var o4 outu8
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o4)
|
|
if err == nil || err.String() != `value for "maxu" out of range` {
|
|
t.Error("wrong overflow error for uint8:", err)
|
|
}
|
|
|
|
// uint16
|
|
b.Reset()
|
|
it = inputT{
|
|
maxu: math.MaxUint16 + 1,
|
|
}
|
|
type outu16 struct {
|
|
maxu uint16
|
|
}
|
|
var o5 outu16
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o5)
|
|
if err == nil || err.String() != `value for "maxu" out of range` {
|
|
t.Error("wrong overflow error for uint16:", err)
|
|
}
|
|
|
|
// uint32
|
|
b.Reset()
|
|
it = inputT{
|
|
maxu: math.MaxUint32 + 1,
|
|
}
|
|
type outu32 struct {
|
|
maxu uint32
|
|
}
|
|
var o6 outu32
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o6)
|
|
if err == nil || err.String() != `value for "maxu" out of range` {
|
|
t.Error("wrong overflow error for uint32:", err)
|
|
}
|
|
|
|
// float32
|
|
b.Reset()
|
|
it = inputT{
|
|
maxf: math.MaxFloat32 * 2,
|
|
}
|
|
type outf32 struct {
|
|
maxf float32
|
|
minf float32
|
|
}
|
|
var o7 outf32
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o7)
|
|
if err == nil || err.String() != `value for "maxf" out of range` {
|
|
t.Error("wrong overflow error for float32:", err)
|
|
}
|
|
|
|
// complex64
|
|
b.Reset()
|
|
it = inputT{
|
|
maxc: cmplx(math.MaxFloat32*2, math.MaxFloat32*2),
|
|
}
|
|
type outc64 struct {
|
|
maxc complex64
|
|
minc complex64
|
|
}
|
|
var o8 outc64
|
|
enc.Encode(it)
|
|
err = dec.Decode(&o8)
|
|
if err == nil || err.String() != `value for "maxc" out of range` {
|
|
t.Error("wrong overflow error for complex64:", err)
|
|
}
|
|
}
|
|
|
|
|
|
func TestNesting(t *testing.T) {
|
|
type RT struct {
|
|
a string
|
|
next *RT
|
|
}
|
|
rt := new(RT)
|
|
rt.a = "level1"
|
|
rt.next = new(RT)
|
|
rt.next.a = "level2"
|
|
b := new(bytes.Buffer)
|
|
NewEncoder(b).Encode(rt)
|
|
var drt RT
|
|
dec := NewDecoder(b)
|
|
err := dec.Decode(&drt)
|
|
if err != nil {
|
|
t.Errorf("decoder error:", err)
|
|
}
|
|
if drt.a != rt.a {
|
|
t.Errorf("nesting: encode expected %v got %v", *rt, drt)
|
|
}
|
|
if drt.next == nil {
|
|
t.Errorf("nesting: recursion failed")
|
|
}
|
|
if drt.next.a != rt.next.a {
|
|
t.Errorf("nesting: encode expected %v got %v", *rt.next, *drt.next)
|
|
}
|
|
}
|
|
|
|
// These three structures have the same data with different indirections
|
|
type T0 struct {
|
|
a int
|
|
b int
|
|
c int
|
|
d int
|
|
}
|
|
type T1 struct {
|
|
a int
|
|
b *int
|
|
c **int
|
|
d ***int
|
|
}
|
|
type T2 struct {
|
|
a ***int
|
|
b **int
|
|
c *int
|
|
d int
|
|
}
|
|
|
|
func TestAutoIndirection(t *testing.T) {
|
|
// First transfer t1 into t0
|
|
var t1 T1
|
|
t1.a = 17
|
|
t1.b = new(int)
|
|
*t1.b = 177
|
|
t1.c = new(*int)
|
|
*t1.c = new(int)
|
|
**t1.c = 1777
|
|
t1.d = new(**int)
|
|
*t1.d = new(*int)
|
|
**t1.d = new(int)
|
|
***t1.d = 17777
|
|
b := new(bytes.Buffer)
|
|
enc := NewEncoder(b)
|
|
enc.Encode(t1)
|
|
dec := NewDecoder(b)
|
|
var t0 T0
|
|
dec.Decode(&t0)
|
|
if t0.a != 17 || t0.b != 177 || t0.c != 1777 || t0.d != 17777 {
|
|
t.Errorf("t1->t0: expected {17 177 1777 17777}; got %v", t0)
|
|
}
|
|
|
|
// Now transfer t2 into t0
|
|
var t2 T2
|
|
t2.d = 17777
|
|
t2.c = new(int)
|
|
*t2.c = 1777
|
|
t2.b = new(*int)
|
|
*t2.b = new(int)
|
|
**t2.b = 177
|
|
t2.a = new(**int)
|
|
*t2.a = new(*int)
|
|
**t2.a = new(int)
|
|
***t2.a = 17
|
|
b.Reset()
|
|
enc.Encode(t2)
|
|
t0 = T0{}
|
|
dec.Decode(&t0)
|
|
if t0.a != 17 || t0.b != 177 || t0.c != 1777 || t0.d != 17777 {
|
|
t.Errorf("t2->t0 expected {17 177 1777 17777}; got %v", t0)
|
|
}
|
|
|
|
// Now transfer t0 into t1
|
|
t0 = T0{17, 177, 1777, 17777}
|
|
b.Reset()
|
|
enc.Encode(t0)
|
|
t1 = T1{}
|
|
dec.Decode(&t1)
|
|
if t1.a != 17 || *t1.b != 177 || **t1.c != 1777 || ***t1.d != 17777 {
|
|
t.Errorf("t0->t1 expected {17 177 1777 17777}; got {%d %d %d %d}", t1.a, *t1.b, **t1.c, ***t1.d)
|
|
}
|
|
|
|
// Now transfer t0 into t2
|
|
b.Reset()
|
|
enc.Encode(t0)
|
|
t2 = T2{}
|
|
dec.Decode(&t2)
|
|
if ***t2.a != 17 || **t2.b != 177 || *t2.c != 1777 || t2.d != 17777 {
|
|
t.Errorf("t0->t2 expected {17 177 1777 17777}; got {%d %d %d %d}", ***t2.a, **t2.b, *t2.c, t2.d)
|
|
}
|
|
|
|
// Now do t2 again but without pre-allocated pointers.
|
|
b.Reset()
|
|
enc.Encode(t0)
|
|
***t2.a = 0
|
|
**t2.b = 0
|
|
*t2.c = 0
|
|
t2.d = 0
|
|
dec.Decode(&t2)
|
|
if ***t2.a != 17 || **t2.b != 177 || *t2.c != 1777 || t2.d != 17777 {
|
|
t.Errorf("t0->t2 expected {17 177 1777 17777}; got {%d %d %d %d}", ***t2.a, **t2.b, *t2.c, t2.d)
|
|
}
|
|
}
|
|
|
|
type RT0 struct {
|
|
a int
|
|
b string
|
|
c float
|
|
}
|
|
type RT1 struct {
|
|
c float
|
|
b string
|
|
a int
|
|
notSet string
|
|
}
|
|
|
|
func TestReorderedFields(t *testing.T) {
|
|
var rt0 RT0
|
|
rt0.a = 17
|
|
rt0.b = "hello"
|
|
rt0.c = 3.14159
|
|
b := new(bytes.Buffer)
|
|
NewEncoder(b).Encode(rt0)
|
|
dec := NewDecoder(b)
|
|
var rt1 RT1
|
|
// Wire type is RT0, local type is RT1.
|
|
err := dec.Decode(&rt1)
|
|
if err != nil {
|
|
t.Error("decode error:", err)
|
|
}
|
|
if rt0.a != rt1.a || rt0.b != rt1.b || rt0.c != rt1.c {
|
|
t.Errorf("rt1->rt0: expected %v; got %v", rt0, rt1)
|
|
}
|
|
}
|
|
|
|
// Like an RT0 but with fields we'll ignore on the decode side.
|
|
type IT0 struct {
|
|
a int64
|
|
b string
|
|
ignore_d []int
|
|
ignore_e [3]float
|
|
ignore_f bool
|
|
ignore_g string
|
|
ignore_h []byte
|
|
ignore_i *RT1
|
|
ignore_m map[string]int
|
|
c float
|
|
}
|
|
|
|
func TestIgnoredFields(t *testing.T) {
|
|
var it0 IT0
|
|
it0.a = 17
|
|
it0.b = "hello"
|
|
it0.c = 3.14159
|
|
it0.ignore_d = []int{1, 2, 3}
|
|
it0.ignore_e[0] = 1.0
|
|
it0.ignore_e[1] = 2.0
|
|
it0.ignore_e[2] = 3.0
|
|
it0.ignore_f = true
|
|
it0.ignore_g = "pay no attention"
|
|
it0.ignore_h = []byte("to the curtain")
|
|
it0.ignore_i = &RT1{3.1, "hi", 7, "hello"}
|
|
it0.ignore_m = map[string]int{"one": 1, "two": 2}
|
|
|
|
b := new(bytes.Buffer)
|
|
NewEncoder(b).Encode(it0)
|
|
dec := NewDecoder(b)
|
|
var rt1 RT1
|
|
// Wire type is IT0, local type is RT1.
|
|
err := dec.Decode(&rt1)
|
|
if err != nil {
|
|
t.Error("error: ", err)
|
|
}
|
|
if int(it0.a) != rt1.a || it0.b != rt1.b || it0.c != rt1.c {
|
|
t.Errorf("rt1->rt0: expected %v; got %v", it0, rt1)
|
|
}
|
|
}
|
|
|
|
type Bad0 struct {
|
|
ch chan int
|
|
c float
|
|
}
|
|
|
|
var nilEncoder *Encoder
|
|
|
|
func TestInvalidField(t *testing.T) {
|
|
var bad0 Bad0
|
|
bad0.ch = make(chan int)
|
|
b := new(bytes.Buffer)
|
|
err := nilEncoder.encode(b, reflect.NewValue(&bad0))
|
|
if err == nil {
|
|
t.Error("expected error; got none")
|
|
} else if strings.Index(err.String(), "type") < 0 {
|
|
t.Error("expected type error; got", err)
|
|
}
|
|
}
|
|
|
|
type Indirect struct {
|
|
a ***[3]int
|
|
s ***[]int
|
|
m ****map[string]int
|
|
}
|
|
|
|
type Direct struct {
|
|
a [3]int
|
|
s []int
|
|
m map[string]int
|
|
}
|
|
|
|
func TestIndirectSliceMapArray(t *testing.T) {
|
|
// Marshal indirect, unmarshal to direct.
|
|
i := new(Indirect)
|
|
i.a = new(**[3]int)
|
|
*i.a = new(*[3]int)
|
|
**i.a = new([3]int)
|
|
***i.a = [3]int{1, 2, 3}
|
|
i.s = new(**[]int)
|
|
*i.s = new(*[]int)
|
|
**i.s = new([]int)
|
|
***i.s = []int{4, 5, 6}
|
|
i.m = new(***map[string]int)
|
|
*i.m = new(**map[string]int)
|
|
**i.m = new(*map[string]int)
|
|
***i.m = new(map[string]int)
|
|
****i.m = map[string]int{"one": 1, "two": 2, "three": 3}
|
|
b := new(bytes.Buffer)
|
|
NewEncoder(b).Encode(i)
|
|
dec := NewDecoder(b)
|
|
var d Direct
|
|
err := dec.Decode(&d)
|
|
if err != nil {
|
|
t.Error("error: ", err)
|
|
}
|
|
if len(d.a) != 3 || d.a[0] != 1 || d.a[1] != 2 || d.a[2] != 3 {
|
|
t.Errorf("indirect to direct: d.a is %v not %v", d.a, ***i.a)
|
|
}
|
|
if len(d.s) != 3 || d.s[0] != 4 || d.s[1] != 5 || d.s[2] != 6 {
|
|
t.Errorf("indirect to direct: d.s is %v not %v", d.s, ***i.s)
|
|
}
|
|
if len(d.m) != 3 || d.m["one"] != 1 || d.m["two"] != 2 || d.m["three"] != 3 {
|
|
t.Errorf("indirect to direct: d.m is %v not %v", d.m, ***i.m)
|
|
}
|
|
// Marshal direct, unmarshal to indirect.
|
|
d.a = [3]int{11, 22, 33}
|
|
d.s = []int{44, 55, 66}
|
|
d.m = map[string]int{"four": 4, "five": 5, "six": 6}
|
|
i = new(Indirect)
|
|
b.Reset()
|
|
NewEncoder(b).Encode(d)
|
|
dec = NewDecoder(b)
|
|
err = dec.Decode(&i)
|
|
if err != nil {
|
|
t.Error("error: ", err)
|
|
}
|
|
if len(***i.a) != 3 || (***i.a)[0] != 11 || (***i.a)[1] != 22 || (***i.a)[2] != 33 {
|
|
t.Errorf("direct to indirect: ***i.a is %v not %v", ***i.a, d.a)
|
|
}
|
|
if len(***i.s) != 3 || (***i.s)[0] != 44 || (***i.s)[1] != 55 || (***i.s)[2] != 66 {
|
|
t.Errorf("direct to indirect: ***i.s is %v not %v", ***i.s, ***i.s)
|
|
}
|
|
if len(****i.m) != 3 || (****i.m)["four"] != 4 || (****i.m)["five"] != 5 || (****i.m)["six"] != 6 {
|
|
t.Errorf("direct to indirect: ****i.m is %v not %v", ****i.m, d.m)
|
|
}
|
|
}
|
|
|
|
// An interface with several implementations
|
|
type Squarer interface {
|
|
Square() int
|
|
}
|
|
|
|
type Int int
|
|
|
|
func (i Int) Square() int {
|
|
return int(i * i)
|
|
}
|
|
|
|
type Float float
|
|
|
|
func (f Float) Square() int {
|
|
return int(f * f)
|
|
}
|
|
|
|
type Vector []int
|
|
|
|
func (v Vector) Square() int {
|
|
sum := 0
|
|
for _, x := range v {
|
|
sum += x * x
|
|
}
|
|
return sum
|
|
}
|
|
|
|
type Point struct {
|
|
a, b int
|
|
}
|
|
|
|
func (p Point) Square() int {
|
|
return p.a*p.a + p.b*p.b
|
|
}
|
|
|
|
// A struct with interfaces in it.
|
|
type InterfaceItem struct {
|
|
i int
|
|
sq1, sq2, sq3 Squarer
|
|
f float
|
|
sq []Squarer
|
|
}
|
|
|
|
// The same struct without interfaces
|
|
type NoInterfaceItem struct {
|
|
i int
|
|
f float
|
|
}
|
|
|
|
func TestInterface(t *testing.T) {
|
|
iVal := Int(3)
|
|
fVal := Float(5)
|
|
// Sending a Vector will require that the receiver define a type in the middle of
|
|
// receiving the value for item2.
|
|
vVal := Vector{1, 2, 3}
|
|
b := new(bytes.Buffer)
|
|
item1 := &InterfaceItem{1, iVal, fVal, vVal, 11.5, []Squarer{iVal, fVal, nil, vVal}}
|
|
// Register the types.
|
|
Register(Int(0))
|
|
Register(Float(0))
|
|
Register(Vector{})
|
|
err := NewEncoder(b).Encode(item1)
|
|
if err != nil {
|
|
t.Error("expected no encode error; got", err)
|
|
}
|
|
|
|
item2 := InterfaceItem{}
|
|
err = NewDecoder(b).Decode(&item2)
|
|
if err != nil {
|
|
t.Fatal("decode:", err)
|
|
}
|
|
if item2.i != item1.i {
|
|
t.Error("normal int did not decode correctly")
|
|
}
|
|
if item2.sq1 == nil || item2.sq1.Square() != iVal.Square() {
|
|
t.Error("Int did not decode correctly")
|
|
}
|
|
if item2.sq2 == nil || item2.sq2.Square() != fVal.Square() {
|
|
t.Error("Float did not decode correctly")
|
|
}
|
|
if item2.sq3 == nil || item2.sq3.Square() != vVal.Square() {
|
|
t.Error("Vector did not decode correctly")
|
|
}
|
|
if item2.f != item1.f {
|
|
t.Error("normal float did not decode correctly")
|
|
}
|
|
// Now check that we received a slice of Squarers correctly, including a nil element
|
|
if len(item1.sq) != len(item2.sq) {
|
|
t.Fatalf("[]Squarer length wrong: got %d; expected %d", len(item2.sq), len(item1.sq))
|
|
}
|
|
for i, v1 := range item1.sq {
|
|
v2 := item2.sq[i]
|
|
if v1 == nil || v2 == nil {
|
|
if v1 != nil || v2 != nil {
|
|
t.Errorf("item %d inconsistent nils", i)
|
|
}
|
|
continue
|
|
if v1.Square() != v2.Square() {
|
|
t.Errorf("item %d inconsistent values: %v %v", v1, v2)
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
// A struct with all basic types, stored in interfaces.
|
|
type BasicInterfaceItem struct {
|
|
Int, Int8, Int16, Int32, Int64 interface{}
|
|
Uint, Uint8, Uint16, Uint32, Uint64 interface{}
|
|
Float, Float32, Float64 interface{}
|
|
Complex, Complex64, Complex128 interface{}
|
|
Bool interface{}
|
|
String interface{}
|
|
Bytes interface{}
|
|
}
|
|
|
|
func TestInterfaceBasic(t *testing.T) {
|
|
b := new(bytes.Buffer)
|
|
item1 := &BasicInterfaceItem{
|
|
int(1), int8(1), int16(1), int32(1), int64(1),
|
|
uint(1), uint8(1), uint16(1), uint32(1), uint64(1),
|
|
float(1), float32(1), float64(1),
|
|
complex(0i), complex64(0i), complex128(0i),
|
|
true,
|
|
"hello",
|
|
[]byte("sailor"),
|
|
}
|
|
err := NewEncoder(b).Encode(item1)
|
|
if err != nil {
|
|
t.Error("expected no encode error; got", err)
|
|
}
|
|
|
|
item2 := &BasicInterfaceItem{}
|
|
err = NewDecoder(b).Decode(&item2)
|
|
if err != nil {
|
|
t.Fatal("decode:", err)
|
|
}
|
|
if !reflect.DeepEqual(item1, item2) {
|
|
t.Errorf("encode expected %v got %v", item1, item2)
|
|
}
|
|
// Hand check a couple for correct types.
|
|
if v, ok := item2.Bool.(bool); !ok || !v {
|
|
t.Error("boolean should be true")
|
|
}
|
|
if v, ok := item2.String.(string); !ok || v != item1.String.(string) {
|
|
t.Errorf("string should be %v is %v", item1.String, v)
|
|
}
|
|
}
|
|
|
|
type String string
|
|
|
|
type PtrInterfaceItem struct {
|
|
str interface{} // basic
|
|
Str interface{} // derived
|
|
}
|
|
|
|
// We'll send pointers; should receive values.
|
|
// Also check that we can register T but send *T.
|
|
func TestInterfacePointer(t *testing.T) {
|
|
b := new(bytes.Buffer)
|
|
str1 := "howdy"
|
|
str2 := String("kiddo")
|
|
item1 := &PtrInterfaceItem{
|
|
&str1,
|
|
&str2,
|
|
}
|
|
// Register the type.
|
|
Register(str2)
|
|
err := NewEncoder(b).Encode(item1)
|
|
if err != nil {
|
|
t.Error("expected no encode error; got", err)
|
|
}
|
|
|
|
item2 := &PtrInterfaceItem{}
|
|
err = NewDecoder(b).Decode(&item2)
|
|
if err != nil {
|
|
t.Fatal("decode:", err)
|
|
}
|
|
// Hand test for correct types and values.
|
|
if v, ok := item2.str.(string); !ok || v != str1 {
|
|
t.Errorf("basic string failed: %q should be %q", v, str1)
|
|
}
|
|
if v, ok := item2.Str.(String); !ok || v != str2 {
|
|
t.Errorf("derived type String failed: %q should be %q", v, str2)
|
|
}
|
|
}
|
|
|
|
func TestIgnoreInterface(t *testing.T) {
|
|
iVal := Int(3)
|
|
fVal := Float(5)
|
|
// Sending a Point will require that the receiver define a type in the middle of
|
|
// receiving the value for item2.
|
|
pVal := Point{2, 3}
|
|
b := new(bytes.Buffer)
|
|
item1 := &InterfaceItem{1, iVal, fVal, pVal, 11.5, nil}
|
|
// Register the types.
|
|
Register(Int(0))
|
|
Register(Float(0))
|
|
Register(Point{})
|
|
err := NewEncoder(b).Encode(item1)
|
|
if err != nil {
|
|
t.Error("expected no encode error; got", err)
|
|
}
|
|
|
|
item2 := NoInterfaceItem{}
|
|
err = NewDecoder(b).Decode(&item2)
|
|
if err != nil {
|
|
t.Fatal("decode:", err)
|
|
}
|
|
if item2.i != item1.i {
|
|
t.Error("normal int did not decode correctly")
|
|
}
|
|
if item2.f != item2.f {
|
|
t.Error("normal float did not decode correctly")
|
|
}
|
|
}
|
|
|
|
// A type that won't be defined in the gob until we send it in an interface value.
|
|
type OnTheFly struct {
|
|
a int
|
|
}
|
|
|
|
type DT struct {
|
|
// X OnTheFly
|
|
a int
|
|
b string
|
|
c float
|
|
i interface{}
|
|
j interface{}
|
|
i_nil interface{}
|
|
m map[string]int
|
|
r [3]int
|
|
s []string
|
|
}
|
|
|
|
func TestDebug(t *testing.T) {
|
|
if debugFunc == nil {
|
|
return
|
|
}
|
|
Register(OnTheFly{})
|
|
var dt DT
|
|
dt.a = 17
|
|
dt.b = "hello"
|
|
dt.c = 3.14159
|
|
dt.i = 271828
|
|
dt.j = OnTheFly{3}
|
|
dt.i_nil = nil
|
|
dt.m = map[string]int{"one": 1, "two": 2}
|
|
dt.r = [3]int{11, 22, 33}
|
|
dt.s = []string{"hi", "joe"}
|
|
b := new(bytes.Buffer)
|
|
err := NewEncoder(b).Encode(dt)
|
|
if err != nil {
|
|
t.Fatal("encode:", err)
|
|
}
|
|
debugBuffer := bytes.NewBuffer(b.Bytes())
|
|
dt2 := &DT{}
|
|
err = NewDecoder(b).Decode(&dt2)
|
|
if err != nil {
|
|
t.Error("decode:", err)
|
|
}
|
|
debugFunc(debugBuffer)
|
|
}
|