| // 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 gob |
| |
| import ( |
| "bytes"; |
| "math"; |
| "os"; |
| "reflect"; |
| "strings"; |
| "testing"; |
| "unsafe"; |
| ) |
| |
| // Guarantee encoding format by comparing some encodings to hand-written values |
| type EncodeT struct { |
| x uint64; |
| b []byte; |
| } |
| |
| var encodeT = []EncodeT{ |
| EncodeT{0x00, []byte{0x00}}, |
| EncodeT{0x0F, []byte{0x0F}}, |
| EncodeT{0xFF, []byte{0xFF, 0xFF}}, |
| EncodeT{0xFFFF, []byte{0xFE, 0xFF, 0xFF}}, |
| EncodeT{0xFFFFFF, []byte{0xFD, 0xFF, 0xFF, 0xFF}}, |
| EncodeT{0xFFFFFFFF, []byte{0xFC, 0xFF, 0xFF, 0xFF, 0xFF}}, |
| EncodeT{0xFFFFFFFFFF, []byte{0xFB, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}}, |
| EncodeT{0xFFFFFFFFFFFF, []byte{0xFA, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}}, |
| EncodeT{0xFFFFFFFFFFFFFF, []byte{0xF9, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}}, |
| EncodeT{0xFFFFFFFFFFFFFFFF, []byte{0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}}, |
| EncodeT{0x1111, []byte{0xFE, 0x11, 0x11}}, |
| EncodeT{0x1111111111111111, []byte{0xF8, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11}}, |
| EncodeT{0x8888888888888888, []byte{0xF8, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88}}, |
| EncodeT{1 << 63, []byte{0xF8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}, |
| } |
| |
| |
| // Test basic encode/decode routines for unsigned integers |
| func TestUintCodec(t *testing.T) { |
| b := new(bytes.Buffer); |
| encState := new(encoderState); |
| encState.b = b; |
| for _, tt := range encodeT { |
| b.Reset(); |
| encodeUint(encState, tt.x); |
| if encState.err != nil { |
| t.Error("encodeUint:", tt.x, encState.err) |
| } |
| if !bytes.Equal(tt.b, b.Bytes()) { |
| t.Errorf("encodeUint: %#x encode: expected % x got % x", tt.x, tt.b, b.Bytes()) |
| } |
| } |
| decState := newDecodeState(b); |
| for u := uint64(0); ; u = (u + 1) * 7 { |
| b.Reset(); |
| encodeUint(encState, u); |
| if encState.err != nil { |
| t.Error("encodeUint:", u, encState.err) |
| } |
| v := decodeUint(decState); |
| if decState.err != nil { |
| t.Error("DecodeUint:", u, decState.err) |
| } |
| if u != v { |
| t.Errorf("Encode/Decode: sent %#x received %#x\n", u, v) |
| } |
| if u&(1<<63) != 0 { |
| break |
| } |
| } |
| } |
| |
| func verifyInt(i int64, t *testing.T) { |
| var b = new(bytes.Buffer); |
| encState := new(encoderState); |
| encState.b = b; |
| encodeInt(encState, i); |
| if encState.err != nil { |
| t.Error("encodeInt:", i, encState.err) |
| } |
| decState := newDecodeState(b); |
| decState.buf = make([]byte, 8); |
| j := decodeInt(decState); |
| if decState.err != nil { |
| t.Error("DecodeInt:", i, decState.err) |
| } |
| if i != j { |
| t.Errorf("Encode/Decode: sent %#x received %#x\n", uint64(i), uint64(j)) |
| } |
| } |
| |
| // Test basic encode/decode routines for signed integers |
| func TestIntCodec(t *testing.T) { |
| for u := uint64(0); ; u = (u + 1) * 7 { |
| // Do positive and negative values |
| i := int64(u); |
| verifyInt(i, t); |
| verifyInt(-i, t); |
| verifyInt(^i, t); |
| if u&(1<<63) != 0 { |
| break |
| } |
| } |
| verifyInt(-1<<63, t); // a tricky case |
| } |
| |
| // The result of encoding a true boolean with field number 7 |
| var boolResult = []byte{0x07, 0x01} |
| // The result of encoding a number 17 with field number 7 |
| var signedResult = []byte{0x07, 2 * 17} |
| var unsignedResult = []byte{0x07, 17} |
| var floatResult = []byte{0x07, 0xFE, 0x31, 0x40} |
| // The result of encoding "hello" with field number 6 |
| var bytesResult = []byte{0x07, 0x05, 'h', 'e', 'l', 'l', 'o'} |
| |
| func newencoderState(b *bytes.Buffer) *encoderState { |
| b.Reset(); |
| state := new(encoderState); |
| state.b = b; |
| state.fieldnum = -1; |
| return state; |
| } |
| |
| // Test instruction execution for encoding. |
| // Do not run the machine yet; instead do individual instructions crafted by hand. |
| func TestScalarEncInstructions(t *testing.T) { |
| var b = new(bytes.Buffer); |
| |
| // bool |
| { |
| data := struct{ a bool }{true}; |
| instr := &encInstr{encBool, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(boolResult, b.Bytes()) { |
| t.Errorf("bool enc instructions: expected % x got % x", boolResult, b.Bytes()) |
| } |
| } |
| |
| // int |
| { |
| b.Reset(); |
| data := struct{ a int }{17}; |
| instr := &encInstr{encInt, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(signedResult, b.Bytes()) { |
| t.Errorf("int enc instructions: expected % x got % x", signedResult, b.Bytes()) |
| } |
| } |
| |
| // uint |
| { |
| b.Reset(); |
| data := struct{ a uint }{17}; |
| instr := &encInstr{encUint, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(unsignedResult, b.Bytes()) { |
| t.Errorf("uint enc instructions: expected % x got % x", unsignedResult, b.Bytes()) |
| } |
| } |
| |
| // int8 |
| { |
| b.Reset(); |
| data := struct{ a int8 }{17}; |
| instr := &encInstr{encInt8, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(signedResult, b.Bytes()) { |
| t.Errorf("int8 enc instructions: expected % x got % x", signedResult, b.Bytes()) |
| } |
| } |
| |
| // uint8 |
| { |
| b.Reset(); |
| data := struct{ a uint8 }{17}; |
| instr := &encInstr{encUint8, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(unsignedResult, b.Bytes()) { |
| t.Errorf("uint8 enc instructions: expected % x got % x", unsignedResult, b.Bytes()) |
| } |
| } |
| |
| // int16 |
| { |
| b.Reset(); |
| data := struct{ a int16 }{17}; |
| instr := &encInstr{encInt16, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(signedResult, b.Bytes()) { |
| t.Errorf("int16 enc instructions: expected % x got % x", signedResult, b.Bytes()) |
| } |
| } |
| |
| // uint16 |
| { |
| b.Reset(); |
| data := struct{ a uint16 }{17}; |
| instr := &encInstr{encUint16, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(unsignedResult, b.Bytes()) { |
| t.Errorf("uint16 enc instructions: expected % x got % x", unsignedResult, b.Bytes()) |
| } |
| } |
| |
| // int32 |
| { |
| b.Reset(); |
| data := struct{ a int32 }{17}; |
| instr := &encInstr{encInt32, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(signedResult, b.Bytes()) { |
| t.Errorf("int32 enc instructions: expected % x got % x", signedResult, b.Bytes()) |
| } |
| } |
| |
| // uint32 |
| { |
| b.Reset(); |
| data := struct{ a uint32 }{17}; |
| instr := &encInstr{encUint32, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(unsignedResult, b.Bytes()) { |
| t.Errorf("uint32 enc instructions: expected % x got % x", unsignedResult, b.Bytes()) |
| } |
| } |
| |
| // int64 |
| { |
| b.Reset(); |
| data := struct{ a int64 }{17}; |
| instr := &encInstr{encInt64, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(signedResult, b.Bytes()) { |
| t.Errorf("int64 enc instructions: expected % x got % x", signedResult, b.Bytes()) |
| } |
| } |
| |
| // uint64 |
| { |
| b.Reset(); |
| data := struct{ a uint64 }{17}; |
| instr := &encInstr{encUint64, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(unsignedResult, b.Bytes()) { |
| t.Errorf("uint64 enc instructions: expected % x got % x", unsignedResult, b.Bytes()) |
| } |
| } |
| |
| // float |
| { |
| b.Reset(); |
| data := struct{ a float }{17}; |
| instr := &encInstr{encFloat, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(floatResult, b.Bytes()) { |
| t.Errorf("float enc instructions: expected % x got % x", floatResult, b.Bytes()) |
| } |
| } |
| |
| // float32 |
| { |
| b.Reset(); |
| data := struct{ a float32 }{17}; |
| instr := &encInstr{encFloat32, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(floatResult, b.Bytes()) { |
| t.Errorf("float32 enc instructions: expected % x got % x", floatResult, b.Bytes()) |
| } |
| } |
| |
| // float64 |
| { |
| b.Reset(); |
| data := struct{ a float64 }{17}; |
| instr := &encInstr{encFloat64, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(floatResult, b.Bytes()) { |
| t.Errorf("float64 enc instructions: expected % x got % x", floatResult, b.Bytes()) |
| } |
| } |
| |
| // bytes == []uint8 |
| { |
| b.Reset(); |
| data := struct{ a []byte }{strings.Bytes("hello")}; |
| instr := &encInstr{encUint8Array, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(bytesResult, b.Bytes()) { |
| t.Errorf("bytes enc instructions: expected % x got % x", bytesResult, b.Bytes()) |
| } |
| } |
| |
| // string |
| { |
| b.Reset(); |
| data := struct{ a string }{"hello"}; |
| instr := &encInstr{encString, 6, 0, 0}; |
| state := newencoderState(b); |
| instr.op(instr, state, unsafe.Pointer(&data)); |
| if !bytes.Equal(bytesResult, b.Bytes()) { |
| t.Errorf("string enc instructions: expected % x got % x", bytesResult, b.Bytes()) |
| } |
| } |
| } |
| |
| func execDec(typ string, instr *decInstr, state *decodeState, t *testing.T, p unsafe.Pointer) { |
| v := int(decodeUint(state)); |
| if state.err != nil { |
| t.Fatalf("decoding %s field: %v", typ, state.err) |
| } |
| if v+state.fieldnum != 6 { |
| t.Fatalf("decoding field number %d, got %d", 6, v+state.fieldnum) |
| } |
| instr.op(instr, state, decIndirect(p, instr.indir)); |
| state.fieldnum = 6; |
| } |
| |
| func newDecodeStateFromData(data []byte) *decodeState { |
| state := newDecodeState(bytes.NewBuffer(data)); |
| state.fieldnum = -1; |
| return state; |
| } |
| |
| // Test instruction execution for decoding. |
| // Do not run the machine yet; instead do individual instructions crafted by hand. |
| func TestScalarDecInstructions(t *testing.T) { |
| ovfl := os.ErrorString("overflow"); |
| |
| // bool |
| { |
| var data struct { |
| a bool; |
| } |
| instr := &decInstr{decBool, 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(boolResult); |
| execDec("bool", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != true { |
| t.Errorf("bool a = %v not true", data.a) |
| } |
| } |
| // int |
| { |
| var data struct { |
| a int; |
| } |
| instr := &decInstr{decOpMap[valueKind(data.a)], 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(signedResult); |
| execDec("int", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("int a = %v not 17", data.a) |
| } |
| } |
| |
| // uint |
| { |
| var data struct { |
| a uint; |
| } |
| instr := &decInstr{decOpMap[valueKind(data.a)], 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(unsignedResult); |
| execDec("uint", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("uint a = %v not 17", data.a) |
| } |
| } |
| |
| // int8 |
| { |
| var data struct { |
| a int8; |
| } |
| instr := &decInstr{decInt8, 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(signedResult); |
| execDec("int8", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("int8 a = %v not 17", data.a) |
| } |
| } |
| |
| // uint8 |
| { |
| var data struct { |
| a uint8; |
| } |
| instr := &decInstr{decUint8, 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(unsignedResult); |
| execDec("uint8", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("uint8 a = %v not 17", data.a) |
| } |
| } |
| |
| // int16 |
| { |
| var data struct { |
| a int16; |
| } |
| instr := &decInstr{decInt16, 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(signedResult); |
| execDec("int16", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("int16 a = %v not 17", data.a) |
| } |
| } |
| |
| // uint16 |
| { |
| var data struct { |
| a uint16; |
| } |
| instr := &decInstr{decUint16, 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(unsignedResult); |
| execDec("uint16", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("uint16 a = %v not 17", data.a) |
| } |
| } |
| |
| // int32 |
| { |
| var data struct { |
| a int32; |
| } |
| instr := &decInstr{decInt32, 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(signedResult); |
| execDec("int32", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("int32 a = %v not 17", data.a) |
| } |
| } |
| |
| // uint32 |
| { |
| var data struct { |
| a uint32; |
| } |
| instr := &decInstr{decUint32, 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(unsignedResult); |
| execDec("uint32", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("uint32 a = %v not 17", data.a) |
| } |
| } |
| |
| // uintptr |
| { |
| var data struct { |
| a uintptr; |
| } |
| instr := &decInstr{decOpMap[valueKind(data.a)], 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(unsignedResult); |
| execDec("uintptr", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("uintptr a = %v not 17", data.a) |
| } |
| } |
| |
| // int64 |
| { |
| var data struct { |
| a int64; |
| } |
| instr := &decInstr{decInt64, 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(signedResult); |
| execDec("int64", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("int64 a = %v not 17", data.a) |
| } |
| } |
| |
| // uint64 |
| { |
| var data struct { |
| a uint64; |
| } |
| instr := &decInstr{decUint64, 6, 0, 0, ovfl}; |
| state := newDecodeStateFromData(unsignedResult); |
| execDec("uint64", instr, state, t, unsafe.Pointer(&data)); |
| if data.a != 17 { |
| t.Errorf("uint64 a = %v not 17", data.a) |
| } |
| } |
| |
| // float |
| { |
| var data struct { |
| a float; |
| } |
| instr := &decInstr{decOpMap[valueKind(data.a)], 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) |
| } |
| } |
| |
| // 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; |
| n *[3]float; |
| strs *[2]string; |
| int64s *[]int64; |
| s string; |
| y []byte; |
| t *T2; |
| } |
| t1 := &T1{ |
| a: 17, |
| b: 18, |
| c: -5, |
| n: &[3]float{1.5, 2.5, 3.5}, |
| strs: &[2]string{s1, s2}, |
| int64s: &[]int64{77, 89, 123412342134}, |
| s: "Now is the time", |
| y: strings.Bytes("hello, sailor"), |
| t: &T2{"this is T2"}, |
| }; |
| b := new(bytes.Buffer); |
| encode(b, t1); |
| var _t1 T1; |
| decode(b, getTypeInfoNoError(reflect.Typeof(_t1)).id, &_t1); |
| 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; |
| } |
| var it inputT; |
| var err os.Error; |
| id := getTypeInfoNoError(reflect.Typeof(it)).id; |
| b := new(bytes.Buffer); |
| |
| // int8 |
| b.Reset(); |
| it = inputT{ |
| maxi: math.MaxInt8 + 1, |
| }; |
| type outi8 struct { |
| maxi int8; |
| mini int8; |
| } |
| var o1 outi8; |
| encode(b, it); |
| err = decode(b, id, &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(); |
| encode(b, it); |
| err = decode(b, id, &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; |
| encode(b, it); |
| err = decode(b, id, &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(); |
| encode(b, it); |
| err = decode(b, id, &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; |
| encode(b, it); |
| err = decode(b, id, &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(); |
| encode(b, it); |
| err = decode(b, id, &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; |
| encode(b, it); |
| err = decode(b, id, &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; |
| encode(b, it); |
| err = decode(b, id, &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; |
| encode(b, it); |
| err = decode(b, id, &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; |
| encode(b, it); |
| err = decode(b, id, &o7); |
| if err == nil || err.String() != `value for "maxf" out of range` { |
| t.Error("wrong overflow error for float32:", 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); |
| encode(b, rt); |
| var drt RT; |
| decode(b, getTypeInfoNoError(reflect.Typeof(drt)).id, &drt); |
| 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); |
| encode(b, t1); |
| var t0 T0; |
| t0Id := getTypeInfoNoError(reflect.Typeof(t0)).id; |
| decode(b, t0Id, &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(); |
| encode(b, t2); |
| t0 = T0{}; |
| decode(b, t0Id, &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(); |
| encode(b, t0); |
| t1 = T1{}; |
| t1Id := getTypeInfoNoError(reflect.Typeof(t1)).id; |
| decode(b, t1Id, &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(); |
| encode(b, t0); |
| t2 = T2{}; |
| t2Id := getTypeInfoNoError(reflect.Typeof(t2)).id; |
| decode(b, t2Id, &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(); |
| encode(b, t0); |
| ***t2.a = 0; |
| **t2.b = 0; |
| *t2.c = 0; |
| t2.d = 0; |
| decode(b, t2Id, &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); |
| encode(b, rt0); |
| rt0Id := getTypeInfoNoError(reflect.Typeof(rt0)).id; |
| var rt1 RT1; |
| // Wire type is RT0, local type is RT1. |
| decode(b, rt0Id, &rt1); |
| 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; |
| 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 = strings.Bytes("to the curtain"); |
| it0.ignore_i = &RT1{3.1, "hi", 7, "hello"}; |
| |
| b := new(bytes.Buffer); |
| encode(b, it0); |
| rt0Id := getTypeInfoNoError(reflect.Typeof(it0)).id; |
| var rt1 RT1; |
| // Wire type is IT0, local type is RT1. |
| err := decode(b, rt0Id, &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 { |
| inter interface{}; |
| c float; |
| } |
| |
| func TestInvalidField(t *testing.T) { |
| var bad0 Bad0; |
| bad0.inter = 17; |
| b := new(bytes.Buffer); |
| err := encode(b, &bad0); |
| if err == nil { |
| t.Error("expected error; got none") |
| } else if strings.Index(err.String(), "interface") < 0 { |
| t.Error("expected type error; got", err) |
| } |
| } |